1. VHT SG Report to EC Date: 2008-11-14 Authors: November 2008 April 2007
doc.: IEEE /0570r0
November 2008
VHT SG Report to EC
Date:
Authors:
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

2. Overview Initial presentation to the EC in July 2008
April 2007
doc.: IEEE /0570r0
November 2008
Overview
Initial presentation to the EC in July 2008
Details here in provide an update to the VHT60 PAR since the EC meeting in July 2008 in Denver
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

3. November 2008
Summary of Updates
Several joint calls/meetings with c since July
Strong support for new coexistence wording based on strawpoll (85-0-2) in joint meeting between VHT60 and c, Monday Sept 8th
Key updates made to four sections since July:
5.2 PAR Scope – new coexistence wording
7.1 – reference c and ECMA TC48
– definition for coexistence and environment
8.1 - addition of response to comment to add PICS statement
Next four slides show these changes in red
No objections raised in subsequent EC call on Oct 24 or on reflector
This resolves all concerns of c, WGs, and EC members to date
Link to PAR and 5Cs
Eldad Perahia, Intel Corporation

4. November 2008
Update to PAR Scope
5.2 Scope of Proposed Standard: This amendment defines standardized modifications to both the physical layers (PHY) and the Medium Access Control Layer (MAC) to enable operation in the 60 GHz frequency band (typically GHz) capable of very high throughput. The MAC and PHY specified in this amendment:
Enables a maximum throughput of at least 1 Gbps, as measured at the MAC data service access point (SAP)
Enables fast session transfer between PHYs
Maintains the user experience
Provides mechanisms that enable coexistence with other systems in the band including IEEE c systems
Eldad Perahia, Intel Corporation

5. November 2008
Update to 7.1
7.1 Are there other standards or projects with a similar scope? Yes
Explanation: There are 60 GHz PHY projects in c and ECMA TC48
Sponsor Organization: IEEE 802
Project/Standard Number: IEEE c
Project/Standard Date: (projected date)
Project/Standard Title: Part 15.3: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for High Rate Wireless Personal Area Networks (WPANs): Amendment 2: Millimeter-wave based Alternative Physical Layer Extension
Sponsor Organization: ECMA
Project/Standard Number: TC48 60 GHz
Project/Standard Date: (projected date)
Project/Standard Title: PHY and MAC layers for 60 GHz wireless network
Eldad Perahia, Intel Corporation

6. November 2008
Update to
Coexistence of 802 wireless standards specifying devices for unlicensed operation
The working group will create a CA document as part of the WG balloting process. The definition for coexistence is as defined in , with the shared environment being the 60 GHz band in home and enterprise.
Eldad Perahia, Intel Corporation

7. Update to 8.1 8.1 Additional Explanatory Notes:
November 2008
Update to 8.1
8.1 Additional Explanatory Notes:
1.1) this is an amendment to the then current revision of the IEEE standard , which will include a PICS proforma
Eldad Perahia, Intel Corporation

8. Detailed History since July EC Meeting
November 2008
Detailed History since July EC Meeting
Eldad Perahia, Intel Corporation

9. Update Since July EC meeting
November 2008
Update Since July EC meeting
Bruce Kraemer, Bob Heile, Paul Nikolich and Steve Shellhammer held a conference call on July 24
Joint conference call with c on Aug 20 to discuss VHT60 PAR
VHT60 conference call on Aug 21 to discuss outcome of joint call
EC call on VHT60 on Sept 3
VHT60 and joint meetings with c in September in Waikoloa
EC call on Oct 24 to discuss VHT60
Eldad Perahia, Intel Corporation

10. EC Discussion following July Denver EC meeting
November 2008
EC Discussion following July Denver EC meeting
Bruce Kraemer, Bob Heile, Paul Nikolich and Steve Shellhammer held a conference call on July 24 to discuss a path forward for the VHT60 PAR
Proposed modifications to VHT60 PAR
A stronger declaration of coexistence with c in the Scope of the PAR. Possible wording that could be used is the wording used in the motion to amend during the closing EC meeting, Replace the text "Addresses coexistence with other wireless systems" with the text "Ensure coexistence with IEEE c.“
Adding a definition of coexistence in the Additional Notes section. One possible definition is the definition in , which was approved by both the and working groups.
Adding c and ECMA TC48 to section 7.1 (Projects will similar scope) of the PAR
“It has been brought up by several people that the term "ensure" is almost a synonym for "guarantee" which was not the intention.”
New VHT60 scope wording proposal by Steve Shellhammer
Supports mechanisms to enable coexistence with IEEE c
Eldad Perahia, Intel Corporation

11. Review of VHT60 Aug 20 joint conference call with 802.15.3c
November 2008
Review of VHT60 Aug 20 joint conference call with c
Discussion on replacing coexistence scope statement with “Supports mechanisms to enable coexistence with IEEE c and with other systems in the band”
Several proposed permutations of wording
Added c and ECMA TC48 to Section 7.1 (Are there other standards or projects with a similar scope?)
Eldad Perahia, Intel Corporation

12. Review of VHT60 Aug 21 conference call
November 2008
Review of VHT60 Aug 21 conference call
Reviewed all proposed permutations of coexistence scope statement from Aug 20 joint conference call with c
Ran electronic strawpolls (results in brackets, 20 participants total)
SP1
Preferred wording for coexistence in VHT60 PAR scope, choose one or more
Addresses coexistence with other systems in the band (5)
Ensure coexistence with IEEE c (1)
Supports mechanisms to enable coexistence with IEEE c and with other systems in the band (7)
Includes mandatory mechanisms to enable coexistence with IEEE c and with other systems in the band (11)
Provides mechanisms to enable coexistence with IEEE c and with other systems in the band (12)
Mandates mechanisms to enable coexistence with IEEE c and with other systems in the band (7)
SP2
Should similar coexistence language be added to the c PAR scope?
Yes (17)
No (1)
Abs (2)
Eldad Perahia, Intel Corporation

13. Review of Sept 3 EC call on VHT60
November 2008
Review of Sept 3 EC call on VHT60
Discussion items
New scope wording based on VHT60 straw poll option with most vote “Provides mechanisms to enable coexistence with IEEE c and with other systems in the band”
chair was supportive
No objections were raised to the wording by EC members on the call
Adding symmetrical coexistence wording to c PAR
Objection from one member of
Timeline of c raised as concern
If recirculation letter ballot goes well, could go to sponsor ballot in November
Definition of coexistence
EC suggested including in PAR (common) 802 definition for coexistence
Could use definition, “The ability of one system to perform a task in a given shared environment where other systems have an ability to perform their tasks and may or may not be using the same set of rules.”
Reference definition in VHT60 PAR
Description of “shared environment”
High level definition of shared environment requested
Would be used in order to determine whether coexistence was achieved
Discussion on level of detail necessary in a PAR/5C’s
VHT60 should add description of environment in 5C’s
New work items for VHT60
Description of environment
Slide 13
Eldad Perahia, Intel Corporation
Eldad Perahia, Intel Corporation

14. VHT60 meeting, Monday Sept 8th 13:30 – 15:30
November 2008
VHT60 meeting, Monday Sept 8th 13:30 – 15:30
Discussion on modifications to PAR
Strawpoll scope coexistence statement (choose one or more)
The MAC and PHY specified in this amendment:
Provides mechanisms to enable coexistence with IEEE c and with other systems in the band (0)
Provides mechanisms that enable coexistence with IEEE c and with other systems in the band (0)
Provides mechanisms that enable coexistence with other systems in the band including IEEE c systems (24)
Eldad Perahia, Intel Corporation

15. Further Coexistence modifications
November 2008
Further Coexistence modifications
Modify (Coexistence of 802 wireless standards specifying devices for unlicensed operation)
Reference definition: “The ability of one system to perform a task in a given shared environment where other systems have an ability to perform their tasks and may or may not be using the same set of rules.”
Environment description: 60 GHz band in home and enterprise
Proposal:
Coexistence of 802 wireless standards specifying devices for unlicensed operation
The working group will create a CA document as part of the WG balloting process. The definition for coexistence is as defined in , with the environment being 60 GHz band in home and enterprise
Eldad Perahia, Intel Corporation

16. Joint meeting with 802.15.3c, Monday Sept 8th 19:30 – 21:30
November 2008
Joint meeting with c, Monday Sept 8th 19:30 – 21:30
Discussion
Steve Shellhammer – perhaps change from “environment” to “shared environment”
James Gilb – change c date in 7.1 to Sept 2009
Strawpoll:
Are the proposed changes to 5.2 Scope “Provides mechanisms that enable coexistence with other systems in the band including IEEE c systems” acceptable?
Yes: 85
No: 0
Abs: 2
138 people in the room at time of strawpoll
Eldad Perahia, Intel Corporation

17. November 2008
EC call on October 24
No objections or issues raised regarding VHT60 PAR in 08/806r6
Eldad Perahia, Intel Corporation

18. PAR Changes due to Feedback on PAR on Nov 11
November 2008
PAR Changes due to Feedback on PAR on Nov 11
Feedback Received on ad PAR from 802.3:
It is noted that IEEE Std includes PICS proforma, and believed that these have consistently been included with the initial addition of functionality to the base standard.  The WG is asked to consider including a commitment to provide PICS on enhancements such as this within the project documents.
Response:
has included a statement into We have added to the end of the last sentence :
…which will include a PICS proforma.
Eldad Perahia, Intel Corporation