March 2005doc.: IEEE 802.11-05/0320r0
IEEE P802.11
Wireless LANs
Date: 16 – March -2005
Author(s):
Name / Company / Address / Phone / email
Filip Weytjens / TransCore / 8600 Jefferson Street NE
87113, Albuquerque, NM / +1 (505) 856-8145 /
Monday, March 14, 2005, 4:00 PM Session
The meeting was convened at 4:00 PM.
The policies and rules were presented to the working group.
The main objective of the meetings is to make the document ready for the May meeting.
Lee went over the agenda including the action item list that was prepared during the Monterey meeting.
It was requested whether there was an action to change the RSSI name for WAVE. This was changed to WRSS mode.
ACTION 1: Provide input to the draft standard to include a cancel primitive. (Brian Wells, Justin McNew) - Jan 28
DONE
ACTION 2: Provide a more detailed description on the use of RSSI for WAVE and differentiate it from existing use of RSSI within the 802.11 contexts. (Jeffrey Zhu) – See Section Thursday
– Need to look at Annex k (.11p)
DONE
ACTION 3: We need to determine when we need to prevent changing the MAC address.
- This action item is deferred to P1609.
DONE
ACTION 4: Random MAC address duplication will be removed from the standard. (Wayne Fisher)
DONE
ACTION 5: The draft standard needs to be updated to include ETSI as the “approval standard” for Europe and there is no approval authority in Europe (table 28). (Wayne Fisher)
DONE
ACTION 6: Sensitivity numbers need to be updated (Table 35, 36). (Wayne Fisher)
- We need to verify that the numbers match the sensitivity numbers in ASTM 2213.
DONE
ACTION 7: The MIB needs to be reviewed to address any potential changes to the body of the draft standard. (Jason Liu) – Feb 15
On-going
ACTION 8: An email needs to be sent out to the TGp list with a request to download and review the draft standard. Comments need to be provided in the standard IEEE comment form. (Wayne Fisher)
–Feb 21: email to download/review
–March 7: Comments back to editor
DONE – Schedule was delayed
March 31 – Comments due to editor on current draft.
ACTION 9: Annex A needs to be reviewed/updated. (Rick Moens, Ariel Sharon) – Feb 15
DONE
ACTION 10: Jason Liu will work with Jeffrey Zhu and Jerry Landt to investigate identified options. (see minutes)
Options discussed in the Monterey minutes: “It was requested whether we needed additional space to store the RSSI value. Jason Liu discussed that we had two options: one is stand-alone and the other one is to reserve a new measurement type in 11h similar to 11k measurement extensions. Jason will work with Jeffrey Zhu and Jerry Landt to investigate these options.”
DONE – New 11h measurement type will be included.
ACTION: 11 Jason Liu will investigate whether we need to add a MIB attribute indicating the RSSI performance of the unit.
DONE
ACTION 12: Jeffrey Zhu will define and describe the test condition for this measurement and provide it to Wayne. This needs to be coordinated with the chip manufacturers to make sure that it is possible. – Due Feb 18
DONE
ACTION 13: (Doug Kavner/Justin McNew) Following items require coordination with 1609 and need more detail:
-SAP/Services required in TGp to update MAC addresses
-Buffering of MAC addresses: part of 802.11p or not.
-Where is the randomisation standardized (802.11p or 1609)
None of this needs to be addressed in the TGp Amendment. We do need to include a requirement on how long it takes to reset the MAC Address.
ACTION 14: Wayne Fisher will contact the car industry to get this resolved.
Language in the Monterey meeting minutes: “5.9.9: Not clear what the “equivalent on a commercial vehicle” means as this is not defined for a commercial vehicle. This is referring to the reference point for the antenna location not the point where tests occur. It is not clear whether this height could change with different bumpers or whether we need a point that is the same for all cars. It was requested to bring this up with the Car manufacturers.
DONE – The reference point is as identified in the draft.
ACTION 15: Organize a meeting between TGp and TGu. (Lee Armstrong)
On-going.
After discussing the Action items the minutes were approved.
ISO Liaison: They got our P1609/IEEE 802.11p documents for review.
IEEE 1609: Doug Kavner: Draft documents are available and are in the process of being delivered to the IEEE 1609 Working group. Ballot will be in early June/July.
IEEE 1556/Security: William White: An overview will be provided at the next meeting.
FCC Licensing: The license is approved but the site registration is under development.
Wayne went through the comments to the draft documents “IEEE P802.11/D1.2, March 2005”.
It was questioned by Bryan Wells how his comments were addresses. His concern was that the new language did not clearly identify the changes?
ACTION 16: It was discussed that the Excel spreadsheet should be used for comments. Wayne will use the approved comments form and will put it on the server. Will be available tomorrow. In the mean time comments are available on the memory stick.
Changes to the draft were made on the fly.
The meeting was adjourned at 6:00PM
Monday, March 14, 2005, 7:30 PM Session
The meeting reconvened at 7:35 PM.
The document (TGp amendment) needs to be reformatted to make sure that there is no overlap between 1609.4 and IEEE 802.11p.
Section 5.9.4 was discussed and changes to the draft were made on the fly. A follow on discussion resulted in a change to the WIBSS. Words for the WIBSS will be provide by Doug Kavner to Wayne Fisher.
ACTION 17: Words for the WIBSS will be provide to Wayne Fisher (section 5.9.4). (Doug Kavner)
It was discussed that there should be no references in this document to IEEE 1609.3.
ACTION 18: Broady Cash will update the language in section 3.52, 5.9.2, 5.9.3 addressing the relation made to the In-vehicle bus.
Meeting adjourned at 9:25 PM.
Tuesday, March 15, 2005, 8:00 AM Session
The meeting was convened at 8:05 AM.
Wayne Fisher continued with the discussion on the draft amendment for TGp. Changes to the document were made on the fly.
It was mentioned that it was not clear whether section 20 was addressing 10MHz, 20 Mhz or both. Clarification was added to section 20.1 to clarify that section 20 was addressing a 10 MHz bandwidth.
A question was raised on the coexistence of 10 MHz and 20 MHz channels. This for instance becomes a problem when vehicles would be allowed to use 20 MHz. These vehicles could drive into a 10 MHz communication zone. It was decided that we would prevent the use of the 20 MHz for OBU-OBU communication.
The resolution of 0.2 dB was discussed and it was questioned whether the resolution made sense for a plus minus 3 dB accuracy. It was stated by Jeffrey Zhu that this was a relative number and that the numbers would be tested using an RF cable and by this limiting the impact of varying channels. No decision was made on whether the .2dB resolution was feasible with existing chip sets.
Meeting adjourned at 10:00 AM.
Tuesday, March 15, 2005, 10:30 AM Session
The meeting reconvened at 10:35 AM.
Wayne Fisher continued with the discussion on the draft amendment for TGp. Changes to the document were made on the fly.
It was questioned which information was used to derive the requirement for the adjacent channel rejection, Minimum sensitivity, and Alternate adjacent channel rejection in table 20.3.10.1.1. Same question came up for sections 20.3.10.3 to 9. It was mentioned that measurements were performed and that calculations showed that this requirement could be met. It was decided that the available documentation will be made available and will be discussed off-line. A list will be developed on which tests need to be performed in order to verify the requirements. The list will be presented next meeting.
ACTION 19: Provide available information on the measurements that were performed justifying the requirements that were stated in 20.3.10.3 to 9. This will be provided as a package. (Broady Cash)
ACTION 20: Preparation of a list with measurements that need to be performed in order to verify the requirements stated in 20.3.10.3 to 9. (Broady Cash, K. Koga)
ACTION 21: Presentation of the list of measurements during the next meeting. (Broady Cash, K. Koga)
The document will be updated based on comments received. The updated document will be discussed during the Thursday morning session.
A draft will be made available March 25. Comments to the draft need to be back on April 12.
Next sessions we will go through the comment sheets that were provided to the editor before the Atlanta meeting.
Meeting adjourned at 12:10 PM.
Wednesday, March 16, 2005, 4:00 PM Session
The meeting was convened at 4:05 PM.
Wayne Fisher started discussing the comments received to date and discussed how the changes were reflected in the document. Where necessary the document was updated on the fly.
Comments were addressed up to row 32 in the comments sheet (doc: 11-05-0281-00-000p-p802-11p-d1-1-review-comments)
The meeting was adjourned at 6:00 PM.
Thursday, March 16, 2005, 8:00 AM Session
The meeting was convened at 8:10 AM.
Jason Liu presented an overview of the WRSS. The presentation addressed the frame structures, the message exchanges, and accuracy and resolution. A question was raised on how the RSU could know that the OBU successfully entered the measurement mode. A message exchange will be added to inform entering and stopping the measurement mode.
ACTION 22: The action was taken to resolve questions the body has on the WRSS concept. (Jeffrey zhu, ) Questions/comments need to be sent to Jeffrey by March 24. Responses will be provided by Jeffrey before April 5 and 6. During the week of April 5, a presentation will be presented by Jeffrey Zhu addressing the questions and comments from the group.
A few years ago a presentation was presented by Jeffrey Zhu on this subject. This presentation will be incorporated in the new presentation that will be provided in the week of April 5.
ACTION 23: Chip set manufacturers will be contacted to attend an adhoc meeting during the May interim. (Jeffrey Zhu)
ACTION 24: Setup an adhoc meeting/teleconference in the week of April 5. (Doug Kavner)
Wayne Fisher continued with a discussion on the draft document for TGp.
A straw pole was taken to have this latest draft made available to the 802 member site. Straw pole past unanimously.
The meeting was adjourned at 10:00AM.
Thursday, March 16, 2005, 10:30 AM Session
The meeting was convened at 10:40AM.
Wayne Fisher continued with a discussion on the draft document for TGp. Where necessary the document/comment sheet was updated on the fly.
Comments were addressed up to row 43 in the comments sheet (doc: 11-05-0281-00-000p-p802-11p-d1-1-review-comments)
Action items
ACTION 7: The MIB needs to be reviewed to address any potential changes to the body of the draft standard. (Jason Liu) – Feb 15
Status Atlanta: On-going
ACTION 15: Organize a meeting between TGp and TGu. (Lee Armstrong)
Status Atlanta: On-going.
ACTION 16: It was discussed that the Excel spreadsheet should be used for comments. Wayne will use the approved comments form and will put it on the server. Will be available tomorrow (Tuesday March 15). (Wayne Fisher)
ACTION 17: Words for the WIBSS will be provide to Wayne Fisher (section 5.9.4). (Doug Kavner)
ACTION 18: Update the language in section 3.52, 5.9.2, 5.9.3 where a relation is made to the In-vehicle bus. (Broady Cash)
ACTION 19: Provide available information on the measurements that were performed justifying the requirements that were stated in 20.3.10.3 to 9. This will be provided as a package. (Broady Cash)
ACTION 20: Preparation of a list with measurements that need to be performed in order to verify the requirements stated in 20.3.10.3 to 9. (Broady Cash, K. Koga)
ACTION 21: Presentation of the list of measurements during the next meeting. (Broady Cash, K. Koga)
ACTION 22: The action was taken to resolve questions the body has on the WRSS. Questions/comments need to be sent to Jeffrey by March 24. Responses will be provided by Jeffrey before April 5 and 6. During the week of April 5, a presentation will be presented by Jeffrey Zhu addressing the questions and comments from the group. (Jeffrey zhu, )
ACTION 23: Chip set manufacturers will be contacted to attend an adhoc meeting during the May interim. (Jeffrey Zhu)
ACTION 24: Setup an adhoc meeting/teleconference in the week of April 5. (Doug Kavner)
Submissionpage 1Filip Weytjens, TransCore