March 2009 doc.: IEEE 802.11-09/0329r0
IEEE P802.11
Wireless LANs
Date: 2009-03-10
Author(s):
Name / Affiliation / Address / Phone / Email
Yongho Seok / LG Electronics / LG R&D Complex 533,
Anyang-Shi, Kyungki-Do,
431-749, Korea / +82-31-450-1947 /
Abstract
This document contains the minutes from the TGz meeting in Vancouver, BC, Canada held on March 9, 10, 11 and 12, 2008.
TGz Meeting Minutes – Vancouver, BC, Candada
March 9, 2009 PM2 Session
Daniel R. Borges (Apple, Inc.), the secretary of TGz, is absent in TGz Vancouver meeting. So, Yongho Seok (LG Electronics), the temporalry secretary, will be taking meeting minutes.
Meeting Minutes
- Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1600 PST.
- The chair presented IEEE SA SB Patent Policy and Procedures (slides #1, #2, #3, #4 and #5).
- The TG members did not (a) express any knowledge of essential patents that influences TGz and (b) any concerns/issues that the WG chair needs to be aware of.
- There are 10 members attending this session.
5. The proposed agenda is found in document 09/0314r0.
6. The next motion is to approve the Vancouver TGz meeting agenda.
Motion 1: Approve the TGz Vancouver meeting agenda (09/0314r0)
Mover: David Hunter (Panasonic)
Seconder: Yongho Seok (LG Electronics)
Result: Unanimous Motion passed
So moved and approved
7. The next motion is to approve the LA TGz meeting minutes.
Motion 2: Approve the LA meeting minutes (09/0099r0)
Mover: David Hunter (Panasonic)
Seconder: Yongho Seok (LG Electronics)
Result: Unanimous Motion passed
So moved and approved
8. We will now be looking at the comment resolution document found in 09/0313r0.
a. Menzo (Qualcomm) is opening the comment spreadsheet.
b. The document number of the comment shpredsheet is 09/0313r0.
c. Menzo (Qualcomm) is adding some lost comments into comment spreaheet.
d. The total number of comments is about 160 comments.
e. Menzo (Qualcomm) is sorting the comments by first name.
f. We are starting the comment resolution from CID 112.
i. CID 112 – Open
Menzo (Qualcomm): Change Awake time to Slot time.
Graham (DSP Group): It is reasonable to use the slot time instead of the fixed time.
David (Panasonic): It is better to add a reference about the backoff mechanism.
Menzo (Qualcomm): But, let’s defer this resolution because we need more discussion.
ii. CID 32 – Counter
The definition of TDLS is clearly defined in the draft for showing the difference with DLS defined in 802.11e.
But, after additional discussion on the name of title of TGz draft, we decide to rename the amendment title as “Extentions to Direct Link Setup”, per the TGz PAR.
iii. CID 33 – Counter
The term of peer is reasonable. But, the term of compeer is not well-known term in TGz members.
Also, the resolution is related with CID 32.
iv. CID 34 – Decline
The management information for TDLS setup is really encapsulated with data frame.
v. CID 35 – Counter
In only security section, the term of DL is confusing with Direct Link.
So, in Page 23, Line 8, delete the confused sentence.
In Page3, Line 25, delete the definition of DL.
In Page 23, Line 46-47, after Menzo will ask Kafle (INTLE) to delete these sentences, it will be deleted.
In Page 24, Line 5, replace “DL” with “TDLS direct link”.
vi. CID 36 – Decline
See CID 33.
vii. CID 37 – Decline
DLS direct link can not switch to off-channel like TDLS. So a station using DLS never become the IDO station.
viii. CID 38 – Accept
Section 5 is describing a high level description.
If we add the detailed explaination in Section 5, it can make additional comments for objecting the detailed explaination in Section 5. But, under discussion, we decide that it is better to add the additional explanation in Page 3, Lince 41 and Page 54, Line 34.
ix. CID 39 – Decline
TDLS means the protocol set, including Setup, Teardown, Power Save Mode, Channe Switch and AP PHY Rate.
And, “Setup” in TDLS Setup just sepeficies TDLS establishment protocol.
x. CID 40 – Decline
After quick check of TGv draft, we find that there are several other occasions of 3-primitive service definitions.
xi. CID 41 – Decline
TDLS frame format is definetly clear in section 11.20. And, the Ethertype capsultation that is used in TGz is part of the TGz baseline. (per TGr)
xii. CID 42 – Decline
TDLS is not used in IBSS as specifed in section 11.20. It already implies that there will be no TDLS direct link in the IBSS.
xiii. CID 43 – Decline
xiv. CID 44 – Accept
xv. CID 106 – Accept
Duplicated comment. See CID 44.
xvi. CID 45 – Accept
9. Menzo (Qualcomm) uploads the revised comment (09/0313r1) spreadsheet
- Menzo (Qualcomm) has recessed the session at 1800 PST.
March 10, 2009 PM1 Session
Meeting Minutes
11. Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1330 PST.
- There are 8 members attending this session.
13. We will now be looking at the comment resolution document found in 09/0313r1.
a. We are starting the comment resolution from CID 46.
i. CID 46, 47, 48, 49 – Accept
ii. CID 50 – Accept
Delete “informative”.
iii. CID 51, 52, 53, 54 – Accept
iv. CID 55 – Counter
Change “illustrated” to “described”.
v. CID 56 – Accept
vi. CID 57 – Accept
After discussion how we correct the IEEE EtherType Field Registration, we decide that TGz chair contacts ANA to the regsistration record for EtherType.
vii. CID 58 – Counter
viii. CID 59 – Accept
ix. CID 60 – Declined
The commenter is invited to submit actual text.
x. CID 61 – Counter
TGz members agree on that off-channle is not visiable to other station. If the off-channel direct link STA wishs to be visible to scaning devices, it is allowed for the optional transmission of Beacon frame and Probe Response.
xi. CID 62 – Declined
See CID 61.
xii. CID 63 – Counter
See CID 61.
xiii. CID 64 – Counter
Section 11.4.1 is just describing the TS operation. So, instead of Section 11.4.1, after the third paragraph in Section 11.20, adding some sentences for disabling simultaneous operation of DLS and TDLS between one fair of stations.
xiv. CID 65 – Accept
xv. CID 66 – Counter
The definition of PU-Buffer STA is there (3.z9). But, in 3.z9, PU must not writed out in full.
xvi. CID 67 – Accept
xvii. CID 68 – Accept
TGz editor creates a new information element called “PU Buffer Status”.
xviii. CID 69 – Accept
Move the Link Identifier IE on place 5.
xix. CID 70, CID 13 – Open
Defer two comments because it is related with 802.11mb.
xx. CID 71, CID 72, CID 73, CID 74, CID 75 – Open
Commenter (Jakup) personally contacted to Menzo with his prospoal. Need a submission.
xxi. CID 76 – Counter
Change “the initial channel” to “an initial channel”, in Section 11.20.4 and Figure 11-Z1.
xxii. CID 77 – Open
Commenter (Jakup) personally contacted to Menzo with his prospoal. Need a submission.
14. Menzo (Qualcomm) has recessed the session at 1530 PST.
March 10, 2009 PM2 Session
Meeting Minutes
15. Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1600 PST.
- There are 6 members attending this session.
17. We will now be looking at the comment resolution document found in 09/0313r1.
a. We are starting the comment resolution from CID 2.
i. CID 2 – Counter
If we change “may” to “shall”, a STA supporting Peer U-APSD shall allow the peer STA to enter Peer U-APSD.
After some discussion, we decide that we need to add the following. Supporting Peer U-APSD may set the Peer U-APSD Support subfield to 0, to indicate the lack of support for U-APSD on this link.
ii. CID 3 – Counter
See CID 2.
iii. CID 4 – Counter
See CID 2.
iv. CID 5 – Declined
v. CID 6 – Accept
See CID 45.
vi. CID 7 – Declined
vii. CID 8 – Accept
For entries 10, 11 and 12 change “is true. Included for Satus Code 10.” into “is trun and if the Status Code is 0.”. Because those entries do not have some conditions related with MIB.
viii. CID 9 – Counter
ix. CID 10 – Accept
x. CID 11 – Counter
xi. CID 12 – Counter
xii. CID 13 – Accept in principle
In Figure 6-1, on top of the 802.1X blocks, add block for showing the transmission and receiving procedure of TDLS frames.
xiii. CID 14 – Withdrawn by commenter
xiv. CID 15 – Counter
Change “ProbeDelay” to “ProbeTime”. The current default value of ProbeDelay is set to the maximum transmission time of 802.11b, 10000us. It should be changed to 1000 us.
18. Menzo (Qualcomm) has recessed the session at 1800 PST.
March 11, 2009 PM1 Session
Meeting Minutes
19. Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1330 PST.
20. There are 5 members attending this session.
21. Menzo (Qualcomm) volunteers the vice-chair of TGac. For attenting in TGac for the election, we will be working in adhoc fashion, any objection. No member has objected to operating in that fashion.
22. Menzo has recessed the session at 1335 PST.
23. Menzo has reopened the session to at 1415 PST.
- Menzo is elected as the vice-chair of TGac. Congrtulate his election. TGz session will be rescheduled for avoding the overlap with TGac session.
25. We will now be looking at the comment resolution document found in 09/0313r1.
a. We are starting the comment resolution from CID 16.
i. CID 16 – Accept
ii. CID 17 – Accept
iii. CID 18 – Counter
iv. CID 19 – Accept
v. CID 20 – Accept
vi. CID 21 – Accept
vii. CID 22 – Accept
viii. CID 23 – Accept
ix. CID 24 – Accept
x. CID 25 – Accept
xi. CID 26 – Accept
xii. CID 27 – Accept
xiii. CID 28 – Accept
xiv. CID 29 – Accept
xv. CID 30 – Accept
xvi. CID 31 – Accept
xvii. CID 161 – Accept
See CID 15.
xviii. CID 160 – Decline
xix. CID 151 – Accept
xx. CID 152 – Decline
TDLS aware AP can block the TDLS Setup.
xxi. CID 153 – Counter
xxii. CID 154 – Counter
xxiii. CID 155 – Counter
See CID 25. Replace a comma with a period.
xxiv. CID 156 – Counter
When a channel switch response frame is transmitted only with the successful code, the TDLS peer STA shall be in PS mode with AP.
xxv. CID 157 – Decline
xxvi. CID 158 – Accept
xxvii. CID 37 – Change from Decline to Counter.
Menzo discussed with Darwin, we change this resolution from Decline to Counter.
xxviii. CID 40 – Decline
26. Menzo (Qualcomm) has recessed the session at 1530 PST.
March 12, 2009 AM2 Session
Meeting Minutes
27. Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1030 PST.
28. There are 7 members attending this session, Menzo Wenthink (Qualcomm), Alex Ashley (NDS), David Hunter (Panasonic), Graham Smith (DSP Group), Yongho Seok (LG Electronics), Ganesh Venkatesan (INTEL), Henry Ptasinski (Broadcomm).
29. We will now be looking at the comment resolution document found in 09/0313r1.
a. Menzo is showing the current status of the comment resolution. Currently, 83 comments are resolved. 77 commnets shall be resolved.
b. We are starting the comment resolution from CID 77.
i. CID 77 – Decline
ii. CID 78 – Accept
When the transition back to the base channel is requested, it is not required to send the resonse frame because that request shall always be accepted.
After the discussion between TGz members, replace the sentences in Page 60, Line 1 - 2, for enable single frame use in transition back to base channel requested by commenter.
iii. CID 70 – Accept
See CID 78.
iv. CID 80 – Accept
See CID 21.
v. CID 70 – Decline
vi. CID 71 – Accept
Commenter (Jakub) discussed with Menzo. And, he suggested a wording for his proposal. TGz members agree on that proposal. So, we add the following, “A TDLS peer STA should not be required to be in Awake state more than one channel at a time.”
vii. CID 72 – Decline
It was already mentioned in the current draft, in Page 59, Line 15 -17.
viii. CID 73 – Decline
It may be an implemention issue.
ix. CID 74 – Accept
See CID 71.
x. CID 75 – Counter
See CID 78. Additional discussion is required. Continue on the the next session.
30. Menzo (Qualcomm) has recessed the session at 1230 PST.
March 12, 2009 PM2 Session
Meeting Minutes
31. Meeting called to order by the Chair Menzo Wentink (Qualcomm) @ 1600 PST.
32. There are 6 members attending this session, Menzo Wenthink (Qualcomm), Alex Ashley (NDS), David Hunter (Sony), Graham Smith (DSP Group), Yongho Seok (LG Electronics), Ganesh Venkatesan (INTEL).
33. We will now be looking at the comment resolution document found in 09/0313r1.
a. We are starting the comment resolution from CID 75.
i. CID 75 – Counter
TGz memers have eagerly discussed the definitions of Probe Time and Switch Time.
Graham: Probe Time may be already covered by Probe Time.
Menzo: Probe Time can be shortened if a STA detects CCA on the target channel.
For addition information, see CID 78.
ii. CID 84 – Decline
iii. CID 85, 86, 87 – Counter
Change the TDLSSetupTimeout to TDLSResponseTimeout.
iv. CID 88 – Accept
v. CID 89 – Accept
vi. CID 90 – Accept
vii. CID 91 – Decline
viii. CID 92 – Decline
After some discussion about more efficient protection mode, TGz member could’t find the need because of the complexity of the new mechanism.
ix. CID 93 – Counter
Change dot11TDLSPeerUAPSDImplemented to dot11TDLSPeerUAPSDBufferSTAImplemented.
x. CID 94 – Counter
Accept the proposal of commenter and add the following sentence in Clause 11.
"No STA shall transmit a TDLS Action frame using with the Type field of the frame set to Management. A STA that transmits a TDLS Action frame shall use the encapsulated format described in Annex U."