Summary of the proposed change: The proposed change is to add a new field to the end of the HE Operation IE called Operational Subchannel Information field. One additional bit called Punctured Operation is added inside of the HE Operation Information field to signal the presence/absence of the new field The new field is a combination of a length and a bit map, where the length is a 3 bit value and the bit map is the length of octets indicated in the length field. Each bit of the bitmap corresponds to a specific subchannel. The lowest numbered bit corresponds to the subchannel with the lowest frequency of the BSS operating channel, etc. Note that a length field is needed in order to maintain extensibility of the HE Operation element. A bit set to 1 indicates transmissions are allowed on that subchannel. A bit set to 0 indicates transmission is not allowed on that subchannel. The absence of the field indicates no puncturing, i.e. transmission is allowed on all subchannels of the BSS channel width. Corresponding behavioral language is added to subclause 27. Proposed Changes to Draft Text of TGax D2.1: 9.4.2.238 HE Operation element TGax editor: change one of the reseved bits of the HE Operation Parameters field to be a new one-bit subfield called Operation” and add the following paragraph as a description of the new subfield: “Punctured The Punctured Operation subfield indicates whether the BSS channel width includes disallowed subchannels. The Punctured Operation subfield is set to 1 to indicate that the BSS channel width includes disallowed subchannels and is set to 0 otherwise. The Punctured Operation subfield is set to 0 when transmitted by a STA operating in the 2.4 GHz band. (#14323) TGax editor: add one new subfield called Subchannel Information” to the side of Figure “Operational 9-589cq HE operation element format, label the width of the new subfield as and add the – “variable” following paragraphs and figures as descriptions of the new subfield and its sub-subfields:
Summary of the proposed change: The proposed change is to add a new field to the end of the HE Operation IE called Operational Subchannel Information field. One additional bit called Punctured Operation is added inside of the HE Operation Information field to signal the presence/absence of the new field The new field is a combination of a length and a bit map, where the length is a 3 bit value and the bit map is the length of octets indicated in the length field. Each bit of the bitmap corresponds to a specific subchannel. The lowest numbered bit corresponds to the subchannel with the lowest frequency of the BSS operating channel, etc. Note that a length field is needed in order to maintain extensibility of the HE Operation element. A bit set to 1 indicates transmissions are allowed on that subchannel. A bit set to 0 indicates transmission is not allowed on that subchannel. The absence of the field indicates no puncturing, i.e. transmission is allowed on all subchannels of the BSS channel width. Corresponding behavioral language is added to subclause 27. Proposed Changes to Draft Text of TGax D2.1: 9.4.2.238 HE Operation element TGax editor: change one of the reseved bits of the HE Operation Parameters field to be a new one-bit subfield called “Punctured Operation” and add the following paragraph as a description of the new subfield: The Punctured Operation subfield indicates whether the BSS channel width includes disallowed subchannels. The Punctured Operation subfield is set to 1 to indicate that the BSS channel width includes disallowed subchannels and is set to 0 otherwise. The Punctured Operation subfield is set to 0 when transmitted by a STA operating in the 2.4 GHz band. (#14323) TGax editor: add one new subfield called “Operational Subchannel Information” to the side of Figure 9-589cq – HE operation element format, label the width of the new subfield as “variable” and add the following paragraphs and figures as descriptions of the new subfield and its sub-subfields:
11-18-0496-02-00ax-disallowed-sub-channels.docx