1. Preamble Parameters
Date:
Authors:
Slide 1

2. Month Year
doc.: IEEE yy/xxxxr0
Introduction
The spec framework defines a preamble structure, but many parameters are yet to be defined
It seems reasonable to reuse n parameters as much as possible, for instance:
L-STF, L-LTF, L-SIG in every 20 MHz subchannel can be the same as for 11n
VHT-SIG-A can use same number of subcarriers as L-SIG
VHT-STF can use same number of subcarriers as L-STF
CSD values for L-STF, L-LTF, L-SIG for up to 4 transmitters can be the same as for 11n
Number of subcarriers and pilots in VHT-LTF and VHT-DATA, including subcarrier locations, can be the same as for 11n HT-DATA for 20 and 40 MHz channels
This presentation has strawpolls on all cases listed above
Slide 2
John Doe, Some Company

3. Straw Poll on L-STF
Do you support adding to the specification framework document (IEEE /0992r9)
3.2.x L-STF definition: The 20 MHz L-STF pattern in the VHT preamble is as defined in of Std n-2009.
Yes:
No:
Abs:
Slide 3

4. Straw Poll on L-LTF
Do you support adding to the specification framework document (IEEE /0992r9)
3.2.x: The 20 MHz L-LTF pattern in the VHT preamble is as defined in of Std n-2009.
Yes:
No:
Abs:
Slide 4

5. Straw Poll on Cyclic Shift
Do you support adding to the specification framework document (IEEE /0992r9)
3.2.x: The CSD (Cyclic Shift Diversity) values for up to 4 antennas in L-STF, L-LTF, and L-SIG are the same as the CSD values for the non-HT portion of the packet defined in Table 20-8 of Std n-2009.
Yes:
No:
Abs:
Slide 5

6. Straw Poll on L-STF and VHT-STF
Do you support adding to the specification framework document (IEEE /0992r9)
3.2.x: The number of subcarriers and subcarrier positions of L-STF and VHT-STF are the same as those of the 20 MHz 11n L-STF in each 20 MHz subchannel
Yes:
No:
Abs:
Slide 6

7. Straw Poll on Subcarriers for L-LTF, L-SIG, VHT-SIG-A
Do you support adding to the specification framework document (IEEE /0992r9)
3.2.x: The number of subcarriers and pilots, including subcarrier positions, of L-LTF, L-SIG, and VHT-SIG-A are the same as those for the 20 MHz 11n L-LTF and L-SIG in each 20 MHz subchannel
Yes:
No:
Abs:
Slide 7

8. Straw Poll on Subcarriers for VHT-LTF and VHT-DATA in 20 and 40 MHz
Do you support adding to the specification framework document (IEEE /0992r9)
3.2.x: The number of subcarriers and pilots, including subcarrier positions, of VHT-LTF and VHT-DATA symbols in 20 and 40 MHz channels are the same as those for 11n HT-LTF and HT-DATA in 20 and 40 MHz channels
Yes:
No:
Abs:
Slide 8