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Re: [STDS-802-11-TGBP] 回复: [STDS-802-11-TGBP] TGbp SP request

Hi Bo,

 

To save time, I merge some similar SPs in one. Please see updated SPs below:

 

SP1:

  • Do you agree that 11bp recommend continuous wave (CW) as WPT waveform?

Reference contribution: 11-25/1227r0

 

SP2:

  • Do you agree to add the following text to TG bp SFD?

o   11bp shall adopt the following channelization scheme for China:

§  Operating bands: 920-925MHz

§  Bandwidth 250kHz

§  There are 20 channels, with center frequency: 920.125+N*0.25, N=0,…,19

Reference contribution: 11-25/1224r0

 

SP3:

  • Do you agree to add the following text to TG bp SFD?

o   11bp shall adopt at least the following channelization scheme for EU:

§  Operating bands: 865-868MHz

§  Bandwidth 200kHz

§  There are 16 channels, with center frequency: 865.1+N*0.2, N=0,…,15;

Reference contribution: 11-25/1224r0

 

SP4:

  • Do you agree to add the following text to TG bp SFD?

o   For mono-static backscattering communication in sub-1 GHz, the maximum allowed clock inaccuracy for the backscattering tag is 100,000 ppm for both receive mode and backscattering transmit mode.

o   11bp shall specify an AMP-S1G Downlink PPDU supporting downlink transmission for backscattering AMP STA in sub-1 GHz. AMP-S1G Downlink PPDU contains at least an Excitation field, an AMP-Sync field and an AMP-Data field.

      • Inclusion of an AMP-SIG field is TBD.
      • Inclusion of an 802.11 preamble is TBD.
      • Additionally, there will be one or more Excitation fields
      • Additionally, there may be more than one AMP-Data field
      • Additionally, AMP-Sync and AMP-SIG field may precede each AMP-Data field

o   11bp shall specify an AMP-S1G Uplink PPDU supporting uplink transmission for backscattering AMP STA in sub-1 GHz. AMP-S1G Uplink PPDU contains an AMP-Sync field and AMP-Data field.

o   The AMP-S1G Downlink PPDU and AMP-S1G Uplink PPDU AMP-Data field will use Manchester encoding for backscattering operation.

o   The AMP-Sync field and the AMP-Data field of AMP-S1G Downlink PPDU and AMP-S1G Uplink PPDU for backscatter communication use OOK modulation.

Reference contribution: 11-25/1225r0

 

SP5:

  • Do you agree to add the following text to TG bp SFD?

o   The AMP-S1G Downlink PPDU shall support at least one the following data rates:

§  62.5 kb/s

§  Support of other data rates is TBD.

Reference contribution: 11-25/1225r0

 

SP6:

  • Do you agree to add the following text to TG bp SFD?

o   The SYNC, Data field and Excitation field of 11bp AMP-S1G Downlink PPDU and AMP-S1G Uplink PPDU use continuous wave (CW) as base carrier waveform for OOK modulated AMP communication?

Reference contribution: 11-25/1225r0

 

 

Best regards,

Panpan Li

 

 

 

From: lipanpan (D) <00002fa7231ab79a-dmarc-request@xxxxxxxxxxxxxxxxx>
Sent: Wednesday, July 30, 2025 5:46 PM
To: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBP] 回复: [STDS-802-11-TGBP] TGbp SP request

 

Hi Bo,

 

Please add the following SPs to queue:

 

SP1:

  • Do you agree that 11bp recommend continuous wave (CW) as WPT waveform?

Reference contribution: 11-25/1227r0

 

SP2:

  • Do you agree to add the following text to TG bp SFD?

o   11bp shall adopt the following channelization scheme for China:

§  Operating bands: 920-925MHz

§  Bandwidth 250kHz

§  There are 20 channels, the center frequency are: 920.125+N*0.25, N=0,…,19

Reference contribution: 11-25/1224r0

 

SP3:

  • Do you agree to add the following text to TG bp SFD?

o   11bp shall adopt at least the following channelization scheme for EU:

§  Operating bands: 865-868MHz

§  Bandwidth 200kHz

§  There are 16 channels, the center frequency are: 865.1+N*0.2, N=0,…,15;

Reference contribution: 11-25/1224r0

 

SP4:

  • Do you agree to add the following text to TG bp SFD?

o   For mono-static backscattering communication in sub-1 GHz, the maximum allowed clock inaccuracy for the backscattering tag is 100,000 ppm for both receive mode and backscattering transmit mode.

Reference contribution: 11-25/1225r0

 

SP5:

  • Do you agree to add the following text to TG bp SFD?

o   11bp shall specify an AMP-S1G Downlink PPDU supporting downlink transmission for backscattering AMP STA in sub-1 GHz.

o   AMP-S1G Downlink PPDU contains at least an Excitation field, an AMP-Sync field and an AMP-Data field.

§  Inclusion of an AMP-SIG field is TBD.

§  Inclusion of an 802.11 preamble is TBD.

§  Additionally, there will be one or more Excitation fields

§  Additionally, there may be more than one AMP-Data field

§  Additionally, AMP-Sync and AMP-SIG field may precede each AMP-Data field

Reference contribution: 11-25/1225r0

 

SP6:

  • Do you agree to add the following text to TG bp SFD?

o   11bp shall specify an AMP-S1G Uplink PPDU supporting uplink transmission for backscattering AMP STA in sub-1 GHz.

o   AMP-S1G Uplink PPDU contains an AMP-Sync field and AMP-Data field.

Reference contribution: 11-25/1225r0

 

SP7:

  • Do you agree to add the following text to TG bp SFD?

o   The AMP-S1G Downlink PPDU and AMP-S1G Uplink PPDU AMP-Data field will use Manchester encoding for backscattering operation.

o   The AMP-Sync field and the AMP-Data field of AMP-S1G Downlink PPDU and AMP-S1G Uplink PPDU for backscatter communication use OOK modulation.

Reference contribution: 11-25/1225r0

 

SP8:

  • Do you agree to add the following text to TG bp SFD?

o   The AMP-S1G Downlink PPDU shall support at least one the following data rates:

§  62.5 kb/s

§  Support of other data rates is TBD.

Reference contribution: 11-25/1225r0

 

SP9:

  • Do you agree to add the following text to TG bp SFD?

o   The SYNC, Data field and Excitation field of 11bp AMP-S1G Downlink PPDU and AMP-S1G Uplink PPDU use continuous wave (CW) as base carrier waveform for OOK modulated AMP communication?

Reference contribution: 11-25/1225r0

 

 

Best regards,

Panpan Li

 

 

From: You-Wei Chen <ywchen77115@xxxxxxxxx>
Sent: Wednesday, July 30, 2025 4:42 PM
To: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
Subject: Re: [STDS-802-11-TGBP] 回复: [STDS-802-11-TGBP] TGbp SP request

 

Dear Bo,

 

Please add the following SPs to queue:

 

  • Do you agree to add the following text to the SFD:
    • The RATE field in L-SIG of an AMP DL PPDU in 2.4 GHz shall be set to the value representing 6 Mb/s in the 20 MHz channel spacing.
    • The LENGTH field in L-SIG of an AMP DL PPDU in 2.4 GHz is set to a value satisfying the condition that the remainder is zero when LENGTH is divided by 3.

  

  • Do you agree to add the following text to the SFD:
    • An DL AMP PPDU in 2.4 GHz is identified in its U-SIG with the following setting:
      • PHY version value sets to 0
      • One or multiple Validate bit subfields sets to  0.

 

BR,

You-Wei

 

 

 

亓祎男 <00001e2bb50f6a93-dmarc-request@xxxxxxxxxxxxxxxxx> 於 2025年7月30日 週三 下午4:36寫道：

Hi Bo,

 

Please find the following SPs I plan to run tomorrow.

 

SP1:

Do you agree to capture the following text to TGbp SFD?

l  The maximum clock offset for a non-backscatter STA is ±10,000 PPM when receiving.

 

 

SP2:

Do you agree to capture the following text to TGbp SFD?

•      IEEE 802.11bp will specify that the same chip duration is used for AMP sync field and AMP data field of a single AMP UL PPDU in 2.4 GHz.

DCN:11-25/1262, 11-25/0790, 11-25/1232

 

Best regards,

 

Yinan

发件人: Nelson Costa <nelson@xxxxxxxx>
发送时间: 2025年7月30日 13:10
收件人: STDS-802-11-TGBP@xxxxxxxxxxxxxxxxx
主题: Re: [STDS-802-11-TGBP] TGbp SP request

 

Hi Bo, 

 

Please find the following SP I would like to run tomorrow.  This is intended as an SFD motion.

 

SP1:

  • Do you agree add the following to the TGbp SFD?
    • 11bp defines at least one mode of bistatic backscatter that can use frequency shifting within a 40 MHz channel.
    • Existing 40 MHz medium protection mechanisms will be leveraged.

References: 11-25/1228, 11-25/1229, 11-24/2128, 11-24/2002

 

Cheers, 

Nelson.

 

On Wed, Jul 30, 2025 at 7:45 AM Ian Bajaj <0000340c29b22c99-dmarc-request@xxxxxxxxxxxxxxxxx> wrote:

Hi Bo,

Please find the straw polls I plan to run tomorrow. All are intended for SFD motion.

 

SP1

  • Do you agree to add the following text to TGbp SFD?
  • IEEE 802.11bp allows a non-AP AMP STA to report the transmission time it can sustain. Furthermore, a one-time report of a fixed multiplicative factor of the transmission time, may be reported to indicate the time that the non-AP AMP STA can sustain other modes of operation. How the non-AP AMP STA may determine these times is TBD.
  • Note:
    • Other modes of operation may include reception, channel sensing, and idle.
    • Idle mode refers to a mode of operation with no RF activity, i.e. the non-AP AMP STA cannot transmit or receive any frames in this mode.

[Reference: 11-25/0788r0, 11-25/1243r0]

 

SP2

  • Do you agree to add the following text to TGbp SFD?
  • IEEE 802.11bp defines an AMP SP frame as one type of AMP Frame to carry AMP Service Period information.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1244r0]

 

SP3

  • Do you agree to add the following text to TGbp SFD?
  • The AMP SP Frame carries the SP ID, SP Start Time, SP Interval, and the SP Minimum Wake Duration. The SP ID serves to uniquely identify the AMP Service Period.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1244r0]

 

SP4

  • Do you agree to add the following text to TGbp SFD?
  • IEEE 802.11bp defines an AMP SP Advert frame as a variant of AMP SP Frame to carry timing synchronization information that is equivalent to the time remaining to the start of the SP. The timing synchronization information may be expressed as a function of the SP Advert Interval, and SP Advert count, or as partial TSF bits of the AMP AP’s TSF.
  • Note:
    • The SP Advert Interval is the periodicity of the AMP SP Advert frame.
    • The SP Advert Count is a decremental counter, that is counted down in each subsequent AMP SP Advert frame.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1244r0]

 

SP5

  • Do you agree to add the following text to TGbp SFD?
  • AMP Service Period allows a Backscatter non-AP AMP STA to enter doze state after a minimum wake up time since the start of the AMP Service Period, if the Backscatter non-AP AMP STA does not receive any AMP DL PPDU from the AMP AP, and can support duty-cycle operation.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1244r0]

 

SP6

  • Do you agree to add the following text to TGbp SFD?
  • IEEE 802.11bp allows a non-AP AMP STA to report its clock accuracy to the AMP AP.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1244r0, 11-25/1245r0]

 

SP7

  • Do you agree to add the following text to TGbp SFD?
  • IEEE 802.11bp defines AMP Beacon frame as one type of AMP frame to carry AMP TSF in the Frame Body.
  • The other fields carried in the AMP Beacon are TBD.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1247r0]

 

SP8

  • Do you agree to add the following text to TGbp SFD?
  • The length of the AMP TSF field carried in the AMP Beacon is 24 bits. The AMP TSF field carries the partial TSF of the AMP AP’s TSF.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1247r0]

 

SP9

  • Do you agree to add the following text to TGbp SFD?
  • The AMP AP’s TSF bits [6:29] is carried in the AMP TSF field in the AMP Beacon Frame.

[Reference: 11-25/0039r0, 11-25/0285r1, 11-25/0787r0, 11-25/1247r0]

 

SP10

  • Do you agree to add the following text to TGbp SFD?
  • IEEE 802.11bp defines AWUR frame as one type of AMP frame with the Frame Body including WUR Frame (excluding FCS).
  • Note: AWUR means Ambient Wake-up Radio

[Reference: 11-25/1246r0]

 

 

Kind Regards

Ian

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