Hi Bo,
There are some updates of my SP texts.
Please help to update the two queued SPs as follows:
- Do you agree to add following content to TGbp SFD:
- The active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the seed according to the 2-bit scrambling seed index indicated in the most recently received AMP DL Trigger frame to scramble
the UL PPDU.
- The active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the seed according to the 2-bit scrambling seed index indicated in the most recently received AMP DL Trigger frame to scramble
the UL PPDU.
- Do you agree to add following content to TGbp SFD:
- The 2-bit scrambling index in AMP DL Trigger frame for indicating UL scrambling seed for active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the following mapping table.
- The 2-bit scrambling index in AMP DL Trigger frame for indicating UL scrambling seed for active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the following mapping table.
[Reference:
11-26/0575r2]
Thanks!
Best Regards
Lumin
From: liulumin <00004bd3b1d2f01a-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Thursday, March 12, 2026 4:45 AM
To: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBP] Re: [STDS-802-11-TGBP] SFD SP request
Hi Bo,
Please help to queue the following two SFD SPs:
- Do you agree to add following content to TGbp SFD:
- The active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the seed according to the 2-bit scrambling seed index indicated in the most recently received AMP DL PPDU to scramble the
UL PPDU.
- The active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the seed according to the 2-bit scrambling seed index indicated in the most recently received AMP DL PPDU to scramble the
UL PPDU.
- Do you agree to add following content to TGbp SFD:
- The 2-bit scrambling index in DL PPDU for indicating UL scrambling seed for active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the following mapping table.
- The 2-bit scrambling index in DL PPDU for indicating UL scrambling seed for active-Tx non-AP AMP STAs and bi-static backscatter non-AP AMP STAs shall use the following mapping table.
[Reference:
11-26/0575r2]
Best Regards
Lumin
From: lipanpan (D) <00002fa7231ab79a-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Thursday, March 12, 2026 4:34 AM
To: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBP] 答复: [STDS-802-11-TGBP] SFD SP request
Hi Bo,
Please help to queue the following three SFD SPs:
-
Do you agree to add following content to TG bp SFD:
Ø
11bp recommend following WPT channels for WPT transmission in US
-
Two channels with BW 500kHz and center frequency being 902.5MHz, 915.5MHz
-
Do you agree to add the following content to TG bp SFD?
Ø
11bp shall define the transmit spectrum mask for
US for DL transmission in sub-1Ghz shown below
•
The mask can be determined by following coordinates: (-375, -60), (-250, -60), (-250, -25), (-125, -25), (-125, 0), (375, -60), (250, -60), (250, -25), (125, -25), (125, 0)
-
Do you agree to add the following content to TG bp SFD?
Ø
11bp shall define the following
time-domain mask for DL transmission in sub-1Ghz: For a “OFF-ON-OFF” pattern,
the RF envelope of the middle “ON” symbol shall obey following requirements:
Best,
Panpan
From: Nelson Costa <nelson@xxxxxxxx>
Sent: Thursday, March 12, 2026 3:31 AM
To: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBP] 答复: [STDS-802-11-TGBP] SFD SP request
Hi Bo,
Please help to queue the following SFD motions:
SP#1
Do you agree add the following to the TGbp SFD?
•
11bp defines one carrier waveform for bistatic backscatter that would be based on the following 64 carrier 20 MHz OFDM symbol.
L[i] = [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1,1,-1,1,-1,1,-1,1,-1,1,-1,1,1,1,-1,-1,0,1,1,1,1,-1,1,-1,-1,1,-1,-1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
•
where L contains carriers with indices i
∈ {-32…31} and i = 0 is the DC carrier.
•
Note: Following Motion #39, the carrier waveform would consist of the repeated base waveform, multiplied by a pseudo-random phase.
References: 11-25/1228, 11-25/1229, 11-25/2021, 11-26/0018, 11-26/0557
SP#2
Do you agree add the following to the TGbp SFD?
•
The delay to account for startup time for the channel shifting clock at the non-AP AMP STA during bistatic backscatter operation shall be no less than 100µs.
References: 11-26/0558
SP#3
Do you agree add the following to the TGbp SFD?
•
During a bistatic backscatter frame exchange sequence (or TXOP), the AMP Energizer shall indicate the excitation start time and duration in a downlink frame to
the non-AP AMP STA.
References: 11-26/0558
Cheers,
Nelson.
On Wed, Mar 11, 2026 at 1:47 PM qianbin (G) <000026f90ace5529-dmarc-request@xxxxxxxxxxxxxxxxx>
wrote:
Hi Bo,
Please help to add the following SFD SP text:
- Do you agree to amend Motion PM-73 in TGbp SFD:
Ø 802.11bp shall specify an upper bound on the transition time from ON to OFF and from OFF to ON of the transmitted waveform by the active non-AP AMP STAs for 250 kbps and 1 Mbps in 2.4 GHz band
• Transition time from ON symbol to OFF symbol is defined as the time for the RF envelope to change from 0.1A to 0.9A. Transition time from OFF symbol to ON symbol is defined as the time for the RF envelope to change from 0.9A to 0.1A.
• Note: A is the steady state RF envelope amplitude of the ON symbol.
• The specified upper bound shall be: ON à OFF transition time
50 ns, and OFF à ON transition time
[Reference: 11-26/0566r1]
- Do you agree to amend Motion PM-74 in TGbp SFD :
Ø 802.11bp shall specify an upper bound and a lower bound on the ratio of ON time duration and OFF time duration of the transmitted waveform by the active non-AP AMP STAs for 250 kbps and 1 Mbps in 2.4 GHz band
• ON time duration is defined as the time interval during which the envelope exceeds 0.9A. OFF time duration is defined as the time interval during which the envelope is below 0.1A.
• Note: A is the steady state RF envelope amplitude of the ON symbol.
• The specified bounds shall be
[Reference: 11-26/0566r1]
Thanks and regards,
Bin
发件人: Ian Bajaj <0000340c29b22c99-dmarc-request@xxxxxxxxxxxxxxxxx>
发送时间: 2026年3月12日 0:59
收件人: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
主题: [STDS-802-11-TGBP] SFD SP request
Hi Bo,
Please help to update the following SFD SP text:
SP Set#20 (Update)
SP4
- Do you agree to amend WM-12 in the 802.11bp SFD as:
- IEEE 802.11bp defines the Operation Status field, to carry the transmission time that the non-AP AMP STA can sustain. The Operation Status field shall be carried in the UL frame transmitted in response to a request for the Operation Status from the AMP AP.
- The transmission of an unsolicited report of the Operation Status in response to a unicast AMP Trigger from the AMP AP is
TBDenabled by a control bit in the AMP UL frame, indicating the presence of the Operation Status field following the field(s) carrying the solicited UL in the payload of the AMP UL frame.- The non-AP AMP STAs that cannot support the reporting of the transmission time it can sustain shall not respond to a request for Operation status from the AMP AP
[Reference: 11-25/0788r0, 11-25/1243r0, 11-25/2038r0]
Thanks and Regards
Ian
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