1. Below 6GHz 11vht PAR scope and purpose discussion
March 2008
doc.: IEEE /0219r4
May 2008
Below 6GHz 11vht PAR scope and purpose discussion
Date:
Authors:
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)
Marc de Courville (Motorola)

2. PAR: scope. Evolution discussion
March 2008
doc.: IEEE /0219r4
May 2008
PAR: scope. Evolution discussion
Purpose of the contribution:
Converge on an appropriate wording for VHTL6 PAR scope
Address the two outstanding issues:
Rate metric definition: what should we include (BSA/BSS/infrastructure BSS/direct links)?
Come up with a reasonable PAR target throughput that avoid putting too many constraints on entry point products
References:
Document 08/0219r2 for VHTL6 PAR&5C’s proposal
Documents 08/0464r2, 08/0465r2 and 08/0499r1 detailing relevant metrics to consider for rate target specification
Documents 08/0307r1 and 08/0535r0 on achievable PHY and MAC throughput analysis
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)
Marc de Courville (Motorola)

3. New PAR: scope proposal
March 2008
doc.: IEEE /0219r4
May 2008
New PAR: scope proposal
The scope of this project is to define an amendment that shall define standardized modifications to both the physical layers (PHY) and the Medium Access Control Layer (MAC) so that modes of operation can be enabled that are capable of supporting:
A maximum infrastructure BSS throughput of at least 1Gbps as measured at the MAC data service access point (SAP)
Multiple communications at the same time
Below 6GHz carrier frequency operation excluding 2.4GHz operation and ensuring backward compatibility and coexistence with legacy IEEE802.11a/n devices in the 5GHz unlicensed band.
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)
Marc de Courville (Motorola)

4. Intent behind this new scope proposal
May 2008
Intent behind this new scope proposal
The current new version intends to address the feedback received on the previous documents. Changelog is:
Constrain to a single set of devices to eliminate multichannel complications
Remove IBSS to constrain/bound to infrastructure relevant data flows
Remove DiL considerations to focus on infrastructure BSS
Do not distinguish between DL/DiL/UL
Result = concentrate on the parts that will allow VHTL6 to make a difference and be unique
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)

5. Straw poll on how to address achievable rate issue
May 2008
Straw poll on how to address achievable rate issue
Straw poll: In order to come up with a reasonable PAR target throughput that avoids putting too many constraints on entry point products which is your favorite option?
Option 1: lower the peak rate in the PAR scope wording
straw poll result: 500Mbps: 14, 750Mbps: 3, 1Gbps: 45
Indicates that 1Gbps should be the target!
Option 2: make the throughput metric optional in the scope wording e.g.:
An optional mode providing a maximum infrastructure BSS throughput of at least 1Gbps as measured at the MAC data service access point (SAP)
Option 3: add an explanatory note to detail in which specific configuration the throughput constraint must be met e.g.:
The infrastructure BSS throughput is defined as the sum of the MAC SAP throughputs across all active transmissions within the BSS
The 1Gbps maximum BSS throughput is to be achieved when considering a BSS with at least 3 simultaneously actively-communicating STAs
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)

6. May 2008
Explanatory notes
The infrastructure BSS throughput is defined as the sum of the MAC SAP throughputs across all active transmissions within the BSS.
The 1Gbps maximum BSS throughput is to be achieved when considering a BSS with at least 3 simultaneously actively-communicating STAs.
Examples of candidate technologies that will contribute to achieve the targeted throughput encompasses space/time/frequency multiplexing: SDMA, OFDMA, Multi-User MIMO ( transmissions and network coding.
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)

7. March 2008
doc.: IEEE /0219r4
May 2008
PAR: purpose
The purpose of the project is to improve the wireless local area network (LAN) user experience by providing significantly higher BSS throughput for existing WLAN application areas and to enable new market segments for operation below 6 GHz including distribution of multiple multimedia/data streams.
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)
Marc de Courville (Motorola)

8. Straw poll on intended contribution
May 2008
Straw poll on intended contribution
Where do you intend to contribute most:
VHTL6
VHT60
Don’t want to say yet
Courville (Motorola), Engwer (Nortel), Kraemer (Marvell), De Vegt (Qualcomm), Erceg (Broadcom)