409 "UL MU-MIMO and UL use statement: UL MU Accept— OFDMA are preceded transmissions are preceded by a Trigger frame from by a Trigger or frame the AP." does not carrying a TRS Control account for the TRS subfield from the AP. see pg frame 420 line for similar language Discussion ------------- Begin Text Changes --------------- ------------- End Text Changes --------------- CID P.L Comment Proposed Change Resolution "n RU. With OFDMA, chane to "n RU. With DL and Reject— different transmit powers UL OFDMA, different While 802.11ax defines UL and may be transmit powers may be DL OFDMA, this specific applied to different RUs.". applied to different RUs." section is describing the general Clarify that is it both concept of OFDMA. The DL downlink and uplink and UL OFDMA are discussed in the following sections. Conceptually, the Remove this paragraph Reject— description of OFDM and 6 The comment doesn’t point out OFDMA in this paragraph which part of description is not is not accurate. Since accurate. While the concepts of they are well-known OFDM and OFDMA are known, concepts, it is not necessary to have this this is the first amendment of paragraph. Also, this 802.11 that adds OFDMA paragraph is crossed out feature. A small paragraph in the redlined version. introducing the concept is Not sure if it is an editorial justifiable. error or not. Discussion ------------- Begin Text Changes --------------- ------------- End Text Changes --------------- CID P.L Comment Proposed Change Resolution 378 In these three bullets, See comment Reject— each has a condition for LDPC coding. It is not
"UL MU-MIMO and UL OFDMA are preceded by a Trigger frame from the AP." does not account for the TRS frame use statement: UL MU transmissions are preceded by a Trigger or frame carrying a TRS Control subfield from the AP. see pg 420 line for similar language Accept— Discussion ------------- Begin Text Changes --------------- ------------- End Text Changes --------------- CID P.L Comment Proposed Change Resolution "n RU. With OFDMA, different transmit powers may be applied to different RUs.". Clarify that is it both downlink and uplink chane to "n RU. With DL and UL OFDMA, different transmit powers may be applied to different RUs." Reject— While 802.11ax defines UL and DL OFDMA, this specific section is describing the general concept of OFDMA. The DL and UL OFDMA are discussed in the following sections. 409 Conceptually, the description of OFDM and OFDMA in this paragraph is not accurate. Since they are well-known concepts, it is not necessary to have this paragraph. Also, this paragraph is crossed out in the redlined version. Not sure if it is an editorial error or not. Remove this paragraph Reject— The comment doesn’t point out which part of description is not accurate. While the concepts of OFDM and OFDMA are known, this is the first amendment of 802.11 that adds OFDMA feature. A small paragraph introducing the concept is justifiable. Discussion ------------- Begin Text Changes --------------- ------------- End Text Changes --------------- CID P.L Comment Proposed Change Resolution 378 In these three bullets, each has a condition for LDPC coding. It is not See comment Reject— 6
11-18-1841-01-00ax-comment-resolution-on-phy-introduction.docx