IEEE 802.11-24/1856r1 Tone Distribution in DRU with Puncturing Follow-up
Explore the proposal for tone distribution in DRU with DRU distribution BW of 60 MHz, focusing on puncturing one 20 MHz subchannel in an 80 MHz subblock. The document discusses tone indices, mappings, and locations in the context of IEEE 802.11-24/1856r1, providing insights into DRU tone distribution strategies.
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November 2024 doc.: IEEE 802.11-24/1856r1 Tone Distribution in DRU with Puncturing - Follow up Date: 2024-11-09 Authors: Name Affiliation Address Phone Email Yan Xin yan.xin@huawei.com Junghoon Suh Huawei Technologies Canada Sara Norouzi Mahmoud Hasabelnaby Osama Aboul-Magd Submission Slide 1 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 Introduction When one 20 MHz subchannel is unavailable for tone distribution across 20 MHz subchannels in an 80 MHz subblock, it implies that subcarriers can be distributed over a maximum 60 MHz spectrum. This contribution summarizes the proposal in [1] and proposes a mode for tone distribution in DRU with DRU distribution BW to be 60 MHz, in which only one 20 MHz subchannel with a fixed location is punctured in a 80 MHz subblock. Submission Slide 2 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 26-, 52- and 106-tone DRU tone indices in a 20 MHz PPDU [2] Submission Slide 3 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 Tone distribution per 20 MHz Universal one-to-one mappings between 26-, 52- and 106-tone distribution indices and 242-tone indices per 20 MHz, which are derived from DRU tone indices in a 20 MHz PPDU proposed in [2]. Submission Slide 4 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 242-tone RU locations in an 80 MHz PPDU RU locations in an 80 MHz EHT PPDU Rearrangement of EHT data, pilot and null subcarrier indices of 242-tone RUs in 80 MHz PPDU (23 DC subcarriers located [-11:11] unchanged) Note: Tone rearrangement is for the design of DRU tone distribution in an intermediate step only. Final DRU tone distributions are based on the locations of RUs, and DC, null and guard tones specified in EHT. Submission Slide 5 Yan Xin, et. al, Huawei Technologies
November 2024 242-tone DRU tone indices with DRU BW 60 MHz in an 80 MHz PPDU doc.: IEEE 802.11-24/1856r1 The highest 20 MHz subchannel is unavailable for tone distribution across subchannels Based on the rearrangement of EHT data, intermediate 242-tone DRU tone indices, idx, with DRU BW 60 MHz are defined as: Submission Slide 6 Yan Xin, et. al, Huawei Technologies
November 2024 26-, 52-, 106-and 242-tone DRU tone indices in an 80 MHz PPDU with DRU BW 60 MHz doc.: IEEE 802.11-24/1856r1 Intermediate 26-, 52- and 106-tone DRU tone indices, idx, corresponding to 242-tone DRU1 Submission Slide 7 Yan Xin, et al, Huawei Technologies
November 2024 26-, 52-, 106-and 242-tone DRU tone indices in an 80 MHz PPDU with DRU BW 60 MHz doc.: IEEE 802.11-24/1856r1 Intermediate 26-, 52- and 106-tone DRU tone indices, idx, corresponding to 242-tone DRU2 Submission Slide 8 Yan Xin, et al, Huawei Technologies
November 2024 26-, 52-, 106-and 242-tone DRU tone indices in an 80 MHz PPDU with DRU BW 60 MHz doc.: IEEE 802.11-24/1856r1 Intermediate 26-, 52- and 106-tone DRU tone indices, idx, corresponding to 242-tone DRU3 Submission Slide 9 Yan Xin, et al, Huawei Technologies
November 2024 26-, 52-, 106-and 242-tone DRU tone indices in an 80 MHz PPDU with DRU BW 60 MHz doc.: IEEE 802.11-24/1856r1 26-, 52-, 106- and 242-tone DRU tone indices, IDX, to be allocated based on 80 MHz EHT PPDU RU allocation - 26-, 52-, 106- and 242-tone DRU tone indices, IDX, with DRU BW 60 MHz can be derived from the intermediate 242-tone DRU indices, idx, by shifting those tone indices as follows based on the EHT tone plan specified in an 80 MHz EHT PPDU. if idx -254, else if -254 < idx < 254, IDX = idx IDX = idx <- 5 Submission Slide 10 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 Summary This contribution further proposes a mode of tone distribution in DRU with distribution BW of 60 MHz, in which only the highest 20 MHz subchannel is punctured in a 80 MHz subblock. Submission Slide 11 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 References [1] 802.11-24-1541r0, Tone distribution in DRU - follow up, September 2024. [2] 802.11-24/0468r2, DRU tone plan for 11bn, May 2024. Submission Slide 12 Yan Xin, et al, Huawei Technologies
November 2024 doc.: IEEE 802.11-24/1856r1 Straw Poll Do you support to include the following text in the SFD: DRU distribution bandwidth of 60 MHz in an 80 MHz frequency subblock (with the highest 20 MHz subchannel unallocated) in a UHR TB PPDU? - No allocation is made in the highest 20 MHz subchannel SP results: No objection. (11bn PHY, Tuesday PM1 session, Nov. 12, 2024 Submission Slide 13 Yan Xin, et al, Huawei Technologies
