Re: [STDS-802-11-TGAX] Allowed puncturing patterns

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Hello,

I have attached a revision 1 to the document 0618 addressing CID 24101. The CR is in line with the SPs ran on April 23^rd, 2020 and captured in the agenda (20/0538r13), corresponding to Mark Rison’s Option A1.

Thanks for your feedbacks,

Lili

Option A: based on the SPs that had a reasonably conclusive outcome as captured in the agenda (20/0538r13), with my interpretation shown:

SP1) For 160M/80+80M, should having all the 20M subchannels in the secondary 80M channel punctured be allowed?

Y/N/A = 0/23/6 [my interpretation: no, not allowed]

SP3) For 160M/80+80M, should D6.0 be interpreted as allowing having no 20M subchannels in the primary 80 MHz channel punctured (only in the secondary 80 MHz channel)?

Y/N/A = 6/9/18 [my interpretation: no, nowhere near enough support to allow this]

SP4) Do you agree that for 160M/80+80M, allow only a maximum of two adjacent 20 MHz subchannels to be punctured?

• When puncturing 40 MHz in secondary 80, only puncturing either the lower 40 MHz or the upper 40 MHz

Y/N/A = 19/5/8 [my interpretation: yes, only allow max 2, but maybe two possible interpretations of bullet; see below]

Option A1: interpret bullet as saying “if you puncture two in the S80, it has to be either the lower 40 or the upper 40; you can’t puncture the other one at all”:

Table 27-20—HE-SIG-A field of an HE MU PPDU, Bandwidth field

Set to 4 for preamble puncturing in 80 MHz, where in the preamble the only punctured subchannel is the secondary 20 MHz channel.

Set to 5 for preamble puncturing in 80 MHz, where in the preamble the only punctured subchannel is one of the two 20 MHz subchannels in the secondary 40 MHz channel.

Set to 6 for preamble puncturing in 160 MHz or 80+80 MHz, where in the preamble the only punctured subchannels are the secondary 20 MHz channel and zero to two of the 20 MHz subchannels in the secondary 80 MHz channel. If two of the 20 MHz subchannels in the secondary 80 MHz channel are punctured, these are either the lower two or the higher two. No more than two adjacent 20 MHz subchannels are punctured across 160 MHz.

Set to 7 for preamble puncturing in 160 MHz or 80+80 MHz, where in the preamble the only punctured subchannels are one or both of the 20 MHz subchannels in the secondary 40 MHz channel and zero to two of the 20 MHz subchannels in the secondary 80 MHz channel. If two of the 20 MHz subchannels in the secondary 80 MHz channel are punctured, these are either the lower two or the higher two. No more than two adjacent 20 MHz subchannels are punctured across 160 MHz.

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