IEEE 802.11-24/1832r2 Stream Parser for Unequal Modulation
This document discusses the stream parser for unequal modulation in IEEE 802.11-24/1832r2, outlining the distribution of coded bits, modulation orders, spatial streams, and parsing techniques. It explores the efficient handling of data in EHT and HT modes, with a focus on stream parsing methodologies and enhancements.
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Nov 2024 doc.: IEEE 802.11-24/1832r2 Stream Parser for Unequal Modulation Date: 2024-11-09 Authors: Affiliations Address Phone email Name Qinghua Li qinghua.li@intel.com Juan Fang Shlomi Vituri Intel Assaf Gurevitz Robert Stacey Carlos Cordeiro Submission Slide 1 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 Stream Parser in EHT After post-FEC padding, coded bits are distributed into different spatial streams in a round robin fashion according to the modulation order If the allocated bandwidth is greater than 80 MHz, the distributed bits per stream are then distributed to each frequency segment in a round robin fashion Segment Parser Pre-FEC PHY Padding Stream Parser LDPC Encoder Post-FEC Padding Scrambler Segment Parser Submission Slide 2 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 2-Stream Parsing in EHT s s s s s s s s s s s s The stream parsing is ? bits by ? bits, where ? is the number of bits carried by each QAM component (real or imaginary) For modulation order ?, s = max 1,log2(?) 2 Submission Slide 3 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 Stream Parser for UEQM in HT Submission Slide 4 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 2-Stream Parsing in HT ????= max 1,log2(????) For modulation order ????, ???= 1,2, 2 s1 s1 s1 s2 s2 s1 s1 s2 s1 s2 s2 s2 Submission Slide 5 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 Reuse of HT Stream Parser with Slight Modifications Reuse HT stream parser for UHR with the following restrictions and modifications 2 ?SS 4 2 ?BPSCS?SS 4096, for ?SS= 1,2, ,?SS The number of encoders equals one, ?ES= 1 The encoder type is LDPC Include 4K QAM and exclude BPSK Submission Slide 6 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 Summary Propose a stream parser for UHR unequal modulation, which reuses existing HT stream parser with restrictions and extensions Submission Slide 7 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 SP1 Do you support to add the following to UHR SFD? Reuse HT stream parser in Slide 4 with the modifications in Slide 6 for UHR UEQM. Y: N: A: Submission Slide 8 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 SP2 Do you support to add the following to UHR SFD? For bandwidths greater than 80 MHz, the coded bit parsing of UHR is stream parsing first followed by segment parsing, the same as in EHT. Y: N: A: Submission Slide 9 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 SP3 Do you support to add the following to UHR SFD? Exclude BPSK in unequal modulation over spatial streams. Y: N: A: Submission Slide 10 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 SP4 Do you support to add the following to UHR SFD? Include 4K QAM in unequal modulation over spatial streams. Y: N: A: Submission Slide 11 Qinghua Li, Intel
doc.: IEEE 802.11-24/1832r2 Nov 2024 SP 5 Do you support to add the following to UHR SFD? add the following to UHR SFD? Reuse HT stream parser for UHR with the following restrictions and modifications 2 ?SS 4 2 ?BPSCS?SS 4096, for ?SS= 1,2, ,?SS The number of encoders equals one, ?ES= 1 The encoder type is LDPC Y: N: A: Submission Slide 12 Qinghua Li, Intel
