13489 Sigurd 28.3.11.9 462.39 Change See comment Revised Schelstraete "1024-QAM Editor delete the is optional sentence in for SU and 486.52 in D2.2: MU for RUs is “1024-QAM equal to or optional for SU larger than and MU for RUs 242 equal to or larger subcarriers." than 242 to subcarriers” is optional for SU and MU and, when supported, can only be used for RUs equal to or larger than 242 subcarriers." 13397 Ron Porat 28.3.11.5 455 Mention As in ncomment Rejected here also This document that RU proposes support 26/52/106 for 1024QAM over dont support small RU 1024 QAM Discussion The current spec does not support transmission of 1024QAM over RU smaller than 242 even though this is possible without any changes to the spec. However we find that supporting 1024QAM over small RU seems to be important for many scenarios e.g.: 20MHz DL/UL OFDMA currently the peak throughput of this mode is 25% lower than – 20MHz SU and hence reduces the appeal of this mode 40MHz DL/UL 4x106RU OFDMA (4 user OFDMA) - currently the peak throughput of this mode is 25% lower than 40MHz SU or 2 user OFDMA and hence reduces the appeal of this mode 80MHz DL/UL 8x106RU OFDMA (8 user OFDMA) - currently the peak throughput of this mode is 25% lower than 80MHz SU or 4 user OFDMA and hence reduces the appeal of this mode We therefore propose to simply remove this artificial limitation in the spec and the missing rates to the tables of 26/52/106RU. Editor: Changes for comments 13404: Please make the following change on page 548 lines 45,46:
13489 Sigurd Schelstraete 28.3.11.9 462.39 Change "1024-QAM is optional for SU and MU for RUs equal to or larger than 242 subcarriers." to is optional for SU and MU and, when supported, can only be used for RUs equal to or larger than 242 subcarriers." See comment Revised Editor delete the sentence in 486.52 in D2.2: “1024-QAM is optional for SU and MU for RUs equal to or larger than 242 subcarriers” 13397 Ron Porat 28.3.11.5 455 Mention here also that RU 26/52/106 dont support 1024 QAM As in ncomment Rejected This document proposes support for 1024QAM over small RU Discussion The current spec does not support transmission of 1024QAM over RU smaller than 242 even though this is possible without any changes to the spec. However we find that supporting 1024QAM over small RU seems to be important for many scenarios e.g.: 20MHz DL/UL OFDMA – currently the peak throughput of this mode is 25% lower than 20MHz SU and hence reduces the appeal of this mode 40MHz DL/UL 4x106RU OFDMA (4 user OFDMA) - currently the peak throughput of this mode is 25% lower than 40MHz SU or 2 user OFDMA and hence reduces the appeal of this mode 80MHz DL/UL 8x106RU OFDMA (8 user OFDMA) - currently the peak throughput of this mode is 25% lower than 80MHz SU or 4 user OFDMA and hence reduces the appeal of this mode We therefore propose to simply remove this artificial limitation in the spec and the missing rates to the tables of 26/52/106RU. Editor: Changes for comments 13404: Please make the following change on page 548 lines 45,46:
11-18-0359-02-00ax-cr-on-1024qam.docx