CID 2109 says:
aRxPHYSTartDelay
needs to be a set of delays indexed by PPDU format.
The MAC then needs to use the right delay in the particular context, e.g. if it's expecting an immediate response and that has to be in a 1 Mbps long-preamble CCK PPDU then it should use the value for that,
buf if the response has to be a 24 Mbps OFDM PPDU it should use the value for that
and proposes:
In the row defining
aRxPHYStartDelay in the middle cell change "Integer" to "Dictionary of integers indexed by PPDU format; the STA chooses the largest value among all those corresponding to the PPDU formats that are valid at the point the PHY start
delay is required"
[This is referring to the row at 865.63.]
This is a thread to discuss this proposed change.
To give an example, say the STA is an HT STA that doesn't do HT_GF.
If that STA transmits to an 802.11-1997 STA, then since the response
is guaranteed to be a DSSS PPDU the appropriate delay is not the
28 us of Table 19-25—HT PHY characteristics, but the 192 us of
Table 15-5—DSSS PHY characteristics.
Thanks,
Mark
--
Mark RISON, Standards Architect, WLAN English/Esperanto/Français
Samsung Cambridge Solution Centre Tel: +44 1223 434600
Innovation Park, Cambridge CB4 0DS Fax: +44 1223 434601
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