1. Probing the will of the SG
September 2007
doc.: IEEE /2472r1
September 2007
Probing the will of the SG
Date:
Authors:
Marc de Courville (Motorola)
Marc de Courville, Motorola

2. Scoping out 11n enhancements (1/2)
September 2007
Scoping out 11n enhancements (1/2)
Initial proposed items that we believe deserve consideration for potential inclusion in the PAR:
Import technical IMT-Adv requirements to be sure to address this opportunity, and not to be alienated to external body evolution
WRC’07 might aggregate IMT-2000 and IMT-Advanced spectrum into one common pool and IEEE could have access to this band: this is a huge opportunity!
Single link rate is not a suitable metric anymore: aggregated throughput is a better suited one to capture
In every environment more than one device is expected to operate: multi-user diversity is a new area and source of gain to exploit (cf vht, vht)
Spectrum efficiency
>1Gbps in 80/100MHz requires MIMO and sounds feasible (cf vht)
But do not get caught into a very high data rate only standard: still maintain and improve reliability of legacy like rates
Marc de Courville (Motorola)

3. Scoping out 11n enhancements (2/2)
September 2007
Scoping out 11n enhancements (2/2)
Initial proposed items that we believe deserve consideration for potential inclusion in the PAR (con’t):
Below 6GHz spectrum operation
What could higher carrier frequencies bring to .11 WG except what WPAN or IEEE c is addressing?
MAC&PHY features to ease interoperability with WMAN
Wi-Fi and WiMax will be integrated soon in the same chipsets: it opens the door to think beyond silos and go towards cooperation and complementarity!
Better outdoor support:
Wi-Fi is already operating outdoor (Hotspots, 4.9GHz), improved delay spread tolerance is appealing
Talk time constraints
Be competitive with cellular in terms of battery life is key to make handhelds truly adopt Wi-Fi
Enhanced peer to peer capabilities: DLS is a start
Marc de Courville (Motorola)

4. Purpose of the following straw polls
September 2007
Purpose of the following straw polls
Get a sense of where the group is heading:
Evaluate the momentum, investigate is there are common views or groups of interest are forming at this not so early stage
Means: 6 questions
Expectations: evaluate number of votes in favor/against
IMT-Advanced support
Below 8GHz operation
Support of >57GHz
5GHz operation in the WLAN unlicensed bands
Requesting backward compatibility support
Viewing 11vht as a threat to 11n deployment success
Marc de Courville (Motorola)

5. September 2007
Straw poll 1
Shall unlicensed 2.4GHz ISM band be out of scope of the proposed amendment
Yes: 41
No: 2
Don’t know yet: 22
Marc de Courville (Motorola)

6. September 2007
Straw poll 2
Shall the PAR specify below 8GHz operation (licensed and unlicensed) including IMT-Advanced bands allocation?
Yes: 24
No: 12
Don’t know yet: 27
Marc de Courville (Motorola)

7. September 2007
Straw poll 3
Shall the PAR focus on carrier frequencies higher than 8GHz, like 57GHz and above?
Yes: 12
No: 28
Don’t know yet: 31
Marc de Courville (Motorola)

8. September 2007
doc.: IEEE /2472r1
September 2007
Straw poll 4
Shall the proposed PAR include a reference to matching IMT-Adv requirements related to nomadic 1Gbps capabilities
Yes: 23
No: 15
Don’t know yet: 33
Marc de Courville (Motorola)
Marc de Courville, Motorola

9. September 2007
Straw poll 5
For those in support of above 8GHz operation is this because you consider 11vht schedule combined with unlicensed operation as a threat to IEEE802.11n deployment success?
Yes: 0
No: 20
Don’t know yet: 11
Marc de Courville (Motorola)

10. September 2007
doc.: IEEE /2472r1
September 2007
Straw poll 6
In case of 5GHz operation, should backward compatibility be within the scope of the PAR ?
Yes: 33
No: 11
Don’t know yet: 18
Marc de Courville (Motorola)
Marc de Courville, Motorola

11. September 2007
Straw poll 7
Would you consider 11vht 5GHz unlicensed band operation as a threat to IEEE802.11n deployment?
Yes: 1
No: 38
Don’t know yet: 17
Marc de Courville (Motorola)