Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

Re: [STDS-802-11-TGBN] TGbn PHY Motion Request

Dear Alfred, 

Could you please add the following motion to the motion queue?

Do you support to use the following procedure to determine MAPC Co-BF sync-reference and sync-follower roles when Co-BF MAPC agreement is established or updated in 11bn?

•A MAPC requesting AP indicates explicitly its sync-reference / sync-follower role in the MAPC Scheme Request Set field of the Co-BF profile in the MAPC Negotiation Request frame.
•A MAPC responding AP assumes the sync-follower / sync-reference role left by the requesting AP if it accepts the agreement establishment or agreement update.

Note: It’s recommended to keep a Co-BF AP’s sync-reference/follower role semi-static, only changes it in Co-BF MAPC agreement update when necessary.


Supporting Doc: 11-25/1608r0 

SP result: No objection


Thanks
Shuling (Julia) Feng

On Tue, Sep 16, 2025 at 11:33 PM Sameer Vermani <000039a3734fa32e-dmarc-request@xxxxxxxxxxxxxxxxx> wrote:

Hi Alfred,

Please add the following two motions to the PHY motions queue:

  1. Move to add the following rules for Co-BF in the TGbn spec in 37.15.2.1.4 Co-BF transmission procedure?
    • If the minimum number of data OFDM symbols of the Co-BF transmission indicated in the Co-BF Invite frame corresponds to Navbits > 3888 bits for a user of the coordinated AP, then the coordinated AP may indicate that 2xLDPC will be used for the user in the Co-BF Response frame.
    • If the minimum number of data OFDM symbols of the Co-BF transmission indicated in the Co-BF Invite frame corresponds to Navbits ≤ 3888 bits for a user of the coordinated AP, then the coordinated AP shall not indicate that 2xLDPC will be used for the user in the Co-BF Response frame.
    • A coordinating AP shall not choose a value for the Length field in the L-SIG field of the Co-BF PPDU in the Co-BF Trigger frame that corresponds to a number of OFDM symbols in the Data field which is smaller than the minimum number of data OFDM symbols the coordinating AP had indicated in the Co-BF Invite frame

                Note: These changes for the TGbn editor are reflected in the word document below

                https://mentor.ieee.org/802.11/dcn/25/11-25-1670-00-00bn-2x-ldpc-related-spec-text-changes-for-cobf.docx

               Supporting documents: 11-25/1609r2 and 11-25/1670r0

               SP result:  Passed unanimously

 

  1. Move to add the following recommendation for Co-BF to the TGbn spec in 37.15.2.1.4 Co-BF transmission procedure?
    • To help the coordinated AP choose an appropriate LDPC codeword length, the minimum number of data OFDM symbols of the Co-BF transmission indicated in the Co-BF Invite frame should be greater than or equal to 0.5 times the maximum number of data OFDM symbols of the Co-BF transmission indicated in the Co-BF Invite frame.

                Note: These changes for the TGbn editor are reflected in word document below

                https://mentor.ieee.org/802.11/dcn/25/11-25-1670-00-00bn-2x-ldpc-related-spec-text-changes-for-cobf.docx

                Supporting documents: 11-25/1609r2 and 11-25/1670r0

                SP result:  Passed unanimously

Thanks,

Sameer

To unsubscribe from the STDS-802-11-TGBN list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGBN&A=1

To unsubscribe from the STDS-802-11-TGBN list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=STDS-802-11-TGBN&A=1