Hi Dandan,
We read your uploaded “new parser” proposal (“11-20-0604-00-00be-new-parser-discussion-in-11be” and you proposed the following parser:
For M-RU (242+484)+996,
Ø
Separate tone mapper for RU242 and RU484
Ø
They propose the parser for 3 RUs with ratio: 1s:2s:4s
Besides the architecture change needed by your proposed parser (different structure from 11ax), we also found out
two issues
about the parser you proposed.
Firstly, we find out that it violates the following passed straw polls:
Do you support joint interleaving for RU and aggregated RU size <=80 MHz?
Do you agree with the following LDPC tone mapper scheme for multi-RU aggregation in 11be?
For aggregated RUs and PPDU BW larger than 80MHz, separate LDPC tone mapper is applied in each 80MHz segment.
Secondly, we simulate the performance and find out its performance is worse than the proportional round robin parser. You can see that proportional round robin (the red curve) is slightly better than
the parser you proposed (the green curve).
Thanks,
Jianhan
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