The purpose of Task Group E is to: Enhance the current 802.11 MAC to expand support for applications with Quality of Service requirements, and in the capabilities and efficiency of the protocol.
802.11e Anaheim Report
Sponsor Ballot Report
- Sponsor Ballot extended by 10 days due to incomplete participation (75% not reached)
- Received 320 comments
- Provided Resolution to approximately 150
Next meeting goal to complete comment resolution and issue new draft for recirculation.
The latest letter Ballot for TGe (LB#51) closed on January 8, 2003 and received an approval rating of 83%. During the January meeting the Task Group worked on comment resolution of the received comments through LB#51.
The Task Group has announced an Ad-hoc meeting between February 24 and 27 , 2003 in Portland OR. to continue with comment resolution.
It is expected that the results of the Ad-hoc meeting will be discussed at the March plenary and the Task Group will continue addressing the comments.
If the resolution process completes by the end of the March meeting it is anticipated to issue a recirculation Ballot.
At the November meeting, Task Group E concentrated on completing comment resolutions and preparing a new draft for letter ballot.
Comment resolutions from previous meetings (in document 02/649) were reviewed. A number of resolutions that had been processed during the inter-meeting teleconferences were presented to the group and accepted without objections.
Specific motions that were adopted with an effect on the draft:
A PICS was proposed that would make both centralized and distributed channel access methods optional. This generated a lot of discussion, since it would enable conformant but non-interoperable implementations. Straw polls were taken, asking who would vote "No" on a draft with each of the combinations of mandatory and optionality for the access methods. The polls indicated the lowest number of "No" votes would result from a draft with both access methods mandatory. An ad-hoc group was formed to work on the PICS. The group developed document 769 as a proposed PICs. After further discussion, an additional motion to amend the draft was made:
- Incorporate the Management Information Base (MIB) text in 02/680r0 into the TGe draft: Unanimous approval
- Modify strictly ordered service class text to only include non-QoS stations.Instruct the editor to incorporate in the TGe draft, the changes to the draft text indicated in document 02/679r0 regarding service classes in clauses 6.1.3, 18.104.22.168.2, 22.214.171.124.2 and 126.96.36.199.2. Unanimous approval.
- Duration Rules: Move to instruct the editor to incorporate in TGe draft, the changes indicated in document 02/679r0 in clause 188.8.131.52, 7.2.2, and 7.2.3. Unanimous approval.
- Duration for Polled TXOPs: Move to instruct the editor to incorporate in the TGe draft, the changes to the draft text in 02/679r0 in clauses 184.108.40.206 and 220.127.116.11.2. Unanimous approval.
- Duration rule for EDCF TXOP when Group ACK is used. Move to strike 9.11.3 (Line 7, page 76) from the draft. Unanimous approval
- CIF and ECF in Probe Request: Move to instruct the editor to delete all the changes in the TGe draft, that are made to clause 18.104.22.168 and restore it to the text in the approved base standards (802.11 and 802.11d). Unanimous Approval.
- Probe Response: Move to instruct the editor to add QoS Parameter Set to Table 12 and make the order consistent with Table 5 in the TGe draft. Unanimous Approval.
- Handling of frames that are associated with a TS at the AP. Move to instruct the editor to incorporate into the TGe draft, the changes to the draft text indicated in 02/679r1 in clause 22.214.171.124. Unanimous approval.
- Recovery in a polled TXOP: Instruct the editor to incorporate into the TGe draft, the changes to the text relating to the recovery rules indicated in 02/679r0 in clause 126.96.36.199.2. Passes 16 : 1 : 6.
- QoS Management Actions. Added schedule element in ADD-TS response: Motion: To instruct the editor to include the changes indicated in 11-02/650r0 into the draft. Passes 16 : 3 : 6.
- TSPEC and Signaling fixes: To instruct the editor to include the changes indicated in 11-02/650r0 into the draft. Unanimous approval.
- MA-UNITDATA-STATUS.indication Interpretation: Direct the editor to incorporate the changes described in document 11-02-688r0 slide 5. Passes 23 : 0 : 16.
- Scheduler Performance Requirements: Move to instruct the editor to incorporate the text in 02/709r0 into the TGe draft. Passes 25 : 2 : 11.
- TSPEC Parameters: Move to instruct the editor to incorporate the text in 02/705r0 into the TGe draft. Unanimous approval.
- Higher-layer timer synchronization: TGe instructs the editor to incorporate the text in 02/723r into the next P802.11e working draft. Unanimous approval.
- Making action frames conformant with the formats defined by TGh: Instruct the editor to incorporate the draft changes in 02/741r1 into the next TGe draft. Passes 45 : 0 : 6.
- Move to make clause 188.8.131.52.2 normative and replace the first paragraph in clause with: “Admission control, in general, depends on vendors’ implementation of the scheduler, available channel capacity, link conditions, retransmission limits, and the scheduling requirements of a given TSPEC. All of these criteria affect the admissibility of a given TSPEC; any TSPEC may be rejected. If the HC has admitted no TSPECs that require polling, it may not find it necessary to perform the scheduler or related HC functions.”. Passes 87 : 1 : 8.
- The PICS was then approved with the following motion: Move to instruct the editor to incorporate the text in 02/769r1 into the next TGe draft. Passes 90 : 0 : 8.
- Enhancement on Distributed Admission Control: Move to adopt the normative text in 02/746r0. Passes 30 : 8 : 40.
- Move to include the Minimum Service Interval in the minimum set of TSPEC parameters that must be interpreted by the HC (when a scheduler is present), in the appropriate sentence in 184.108.40.206, so that it reads: “These parameters are Mean Data Rate, Nominal MSDU Size, Minimum Service Interval, and at least one of Maximum Service Interval, and at least one of Maximum Service Interval and Delay Bound. All these parameters, shall be non-zero (except for the Minimum Service Interval) in the AddTS QoS Action Response frame when a stream is admitted”. Passes 43 : 14 : 14.
Comment resolution response:
- TGe requested the ANA to assign capability bit for APSD mode and IE number for Schedule (preferably with a value of 15), APSD and Random data elements.
Sending the new draft to Letter Ballot:
- Move to accept 02/720r0 as the group’s response to the commenter’s request to provide response to the LB39 comments. Passes 30-0-3.
- The group unanimously passed a motion to instruct the editor to create Draft 4.0 incorporating all the adopted changes.
- The group unanimously passed a motion to recommend to the IEEE802.11 WG to submit Draft version 4.0 for a working group letter ballot on or before November 20, 2002.
At the September meeting, TGe continued to resolve the issues that caused No votes on Letter Ballot 39. Two consolidated proposals were developed before the meeting, addressing multiple issues that were identified in the comments on LB39. The "TGe Fast Track Proposal" was merged with the "Wireless Multimedia Enhancements" proposal to form the "TGe Consensus Proposal" (document 524r3).
Straw polls were taken to gauge the group's feelings on the contentious issues:
* The group favored removing FEC from the draft by a vote of 35 : 0 : 1
* The group favored removing the Mobile AP from the draft by a vote of 37 : 1 : 2
* The group favored support for polling to be mandatory in the AP by a vote of 23 : 6 : 6
The TGe Consensus Proposal contains:
* Improved eDCF
* HCF Polling
* Power Save extensions
* Direct Link Protocol (Optional)
* Burst Acknowledgments (Optional)
The proposal deletes the following from the draft
* Forward Error Correction (FEC)
* AP Mobility mechanisms
* Contention Control and Reservation Request (CC / RR) mechanisms
The proposal was presented to the body, and additional straw polls were taken:
* Should HCF Polling be mandatory at the AP? Yes, by a vote of 49 : 12 : 4
* Should a TGe letter ballot be issued before November? No, by a vote of 14 : 39 : 10
* Do you support the principles of the Consensus Proposal as the basis of a new TGe Draft? Yes, by a vote of 48 : 3: 15 (14 of 15 abstains needed more time to study the proposal)
The proposal was voted on, and the normative text for the consensus proposal (document 604r1) was adopted with a vote of 129 : 5 : 4.
A motion to instruct the editor to create a new draft (802.11E-D3.3) incorporating these changes was passed with a vote of 48 : 0 : 1.
A motion was passed to "Instruct the chair to send an email to the reflector identifying the state of TGe and the draft, and identifying that comments will not be specifically addressed, except at the request of the commenter. The chair is also instructed to note the situation in the next plenary session". The vote was 23 : 2 : 7.
The TGe minutes are in document 02/552r0.
Letter Ballot 39 on 802.11e-D3.0 was conducted from May 23rd to July 2nd, 2002. It failed with the following results:At the July meeting, TGe started the process of resolving comments for LB39. The group focused on resolving comments submitted by no-voters with a single comment, in hopes of reversing a number of no-votes.
Yes 106 votes 49% No 110 votes 51% Abstain 44 votes 17%
During the comment resolution process, the following motions with an effect on the draft were passed:Comment ID 1763, 9.10.1TGe also passed a motion to create a new version of the draft incorporating these resolutions. That draft will be 802.11e-D3.2.
Resolution – Accept the comment and clarify why it is needed. The editor will provide the clarification.
Background: This relates to a harmless space. It was to account for an accumulated timing drift. Some thought it was to give the HC priority, which is not needed since it already has priority.
Accepted without objection
Resolution – respond to the commenter that the issue has been debated, and the decision was made to delete the SDL.
Resolution accepted without objection.
Requesting MAC state machines
We could declare the comment invalid since there is no proposed remedy.
The draft needs to have an annex C specifying the deletion of the SDL.
Each spec is allowed to use state machines to clarify the standard where the Task Group decides it needs to do so.
Respond to the commenter explaining that the group has decided to delete the SDL.
Resolution accepted with no objections.
The MIB can be set to give priority to legacy stations. The concern is not well founded.
Mechanisms exist in the draft to permit, by way of modification to MIB and other parameters, legacy or best effort traffic to gain access to the medium at arbitrary priority. However, the group considers it undesirable to do so as this is contrary to the purpose of the QoS mechanism. An admission control function at a higher layer may also be used to ensure a minimum level of service for best effort traffic.
Straw poll – who likes the resolution?: 15:1 Resolution accepted without objection
Comment calls for an informative section on usage models..
Accept the suggested remedy. Form an ad hoc to write the informative text.
Accepted without objection
“QAP: why required only 4 queues for QAP? I think that QAP should be required to have 8 queues.”
The group notes that the implementation is not constrained.
We decline the comment and delete the line (mandating the QAP having multiple queues) in the draft in both occurrences.
Accepted without objection
Comment 366, EDCF Parameter Set
Motion Move to instruct the editor to modify the normative text to insert a “should” clause referring to the EDCF parameter set element, indicating that this is intended to set policy and should be change by an AP only rarely. Vote: passes 33:7:15
Move to adopt the editing instructions described in document 11-02-482r0.
Vote: Passes 23:0:2
Motion: Instruct the editor to incorporate 02/439r0 into the next TGe draft.
Vote : Passes 37:1:0
Motion to instruct the editor to make the following changes: Change 220.127.116.11 as follows: delete the words “(highest)” and “(lowest)”; add the footnote: “Using the mapping between user priorities and traffic types, found in 802.1D Annex H.2, above the MAC SAP is recommended”; Remove the traffic type names in Table D.1
Vote: Passes 40:0:1
TS Signaling with Roaming
Motion: To instruct the editor to incorporate the editing changes made in 18.104.22.168 in document 02/407r1 into the next TGe draft.
Vote: Passes 18:1:18
Primitives for Burst Ack
Motion: Instruct the editor to incorporate 436r0 into the next version of the TGe draft
Vote: Passes 16:3:20
The TGe minutes are in document 02/443r0.
Comment resolution will continue at the September meeting in Monterey.
At the May meeting, TGe continued to process comments from letter ballot 30. Srini Kandalas was selected as the Managing Editor, who will coordinate the input from an editorial team and reviewers.
The comment resolution ad-hoc groups continued to meet. A new draft 802.11E-D3.0 was prepared with all the comment resolutions, and was issued for a letter ballot.
The session minutes are in document 02-317.
The following motions having an effect on the draft were passed:Example of FEC Frame EncodingThe TGe committee reviewed the updates to the draft on Thursday evening, and voted to issue a new draft, D3.0 by a vote of 33 : 0 : 1. The Task Group then voted 32 : 0 : 2 to request the Working Group to issue D3.0 as a Letter Ballot.
2.3.1. Motion that TGe adopt the text contained in 11-02/324r0, with any appropriate changes arising from other motions, to be included as an informative annex in the draft.. Passes with Unanimous Consent
Burst Ack Priority
2.3.2. Motion to modify the draft to specify the management and all types of burst ack control frames be sent at the highest priority. Passes with Unanimous Consent.
Parameter Set Update
22.214.171.124 Motion that TGe incorporate the normative text from document 02/341r0a into the draft with the amendment proposed on slide 6 replacing "TBD ms" with "one beacon interval". Passes 27: 8: 9
2.3.5. Move to remove the TClas element and all references thereto from the draft. Passes 26 : 7 : 10
2.3.6. Move to instruct the editor to include an informative annex to describe how a TSpec could be generated from information passed to the MAC. John Kowalski is volunteering to write this. Passes with Unanimous Consent.
Queue State Element
5.8.4. Motion - to rescind the motion 126.96.36.199 from November 2001: "instruct the editor to incorporate the normative text in document 01/597r1 into the draft". Passes 29 : 8 : 7
6.2.2. Motion: to instruct the editor to include normative text defined by 02/348r1 into the TGe draft. Passes with Unanimous Consent
6.2.3. Motion: remove the text "that initiated the frame exchange sequence" from the first sentence of clause 188.8.131.52.7 which states, "The Power Management field is 1 bit in length and is used to indicate the power management mode of the (Q)STA that initiated the frame exchange sequence". Passes 31: 0: 1
In addition, a number of specific comments were accepted by votes in the committee. These are detailed in the minutes.
Teleconferences will be conducted on the topic of the FEC Scrambler.
At the March meeting, TGe continued to process comments from letter ballot 30. The comment resolution ad-hoc groups continued to meet, and formed resolutions for groups of comments. The session minutes are in document 02-162.
The following motions having an effect on the draft were passed:Mapping of User Priorities to Access CategoriesApproximately 80% of the comments have been resolved. The Task Group passed a motion to enable continued comment resolution work at the May meeting, and to authorize the issue of a Letter Ballot on the updated draft.
Move to Instruct the editor to adopt the normative text in 02-241r0. Unanimous
Multiple MSDU transmission during EDCF TXOP:
Allow a multiple MSDU or MMPDU transmission during an EDCF TXOP within the limit of dot11CPCFBlimit[UP].
Motion: to instruct the editor to adopt the normative text in document 02-185r0. Passes 25: 8 : 6
Motion to incorporate the updated text relating to the FEC in section 184.108.40.206 in D2.0a into the draft. Unanimous
Move to instruct the editor to edit the TGe draft, reversing the editing instructions in 11-02-066r3 and following the editing instructions in 11-02-066r9. Unanimous
Move to instruct the editor to edit the TGe draft following the editing instruction in document 02/236r0, with the exception of the instructions for Annex D. Passes 28 : 1 : 6
Motion to make the QoS Control Field consistent with the FEC Text that was approved yesterday. Unanimous
Move to instruct the editor to edit the TGe draft following the editing instructions in 11-02-236r2 relating to Annex D, additionally inserting the word “reserved” for all parameters relating to unused TCs and replacing MaxCFBlength with dot11CPCFBlimit, and further, replacing the value of dot11CPCFBlimit for TC=5 with 0.5”. Unanimous
Instruct the editor to incorporate the text in the document 02/135r7 into the draft. Unanimous
Motion: instruct the TGe editor to incorporate the resolutions for the first two lines from the table in 02/257r0 into the draft. Unanimous
SDL in Annex C
Motion: replace contents of Annex C, except the title, with the note “This annex has been removed and the content is not relevant to this standard”, and delete all references to Annex C contained in clause 9 and annex A. Passes 40 : 0 : 2
Move to adopt the resolutions marked as resolved in document 02-084r9 excluding comment 1128, 1514, and 1527, except for resolutions marked “duplicate” that reference unresolved comments, and those in conflict with the motions adopted and recorded in the meeting minutes of TGe between January 1, 2002, and March 15, 2002. If there are contradictions within the document, the editor is instructed to take no action on the conflicting resolutions, and report it back to the group. Passes 38 : 0 : 1
Ad-Hoc teleconferences will scheduled to continue comment resolutions before the next meeting in May.
At the January meeting, we began processing comments resulting from letter ballot 30. There were over 2000 comments received.
The comments were subdivided into areas, and papers and presentations were given to address the comments.
A number of motions were made to instruct the editor to modify the draft.
Despite the work of the editing team during the meeting, it was not possible to incorporate all the changes to the draft resulting from motions that were accepted during the meeting. No new draft was available to send to letter ballot.
To continue the comment resolution process between meetings, ad-hoc comment resolution teams will conduct teleconferences. Teleconferences will be announced on the email reflector.The Burst Ack group is led by Srini KandalasThe following motions having an effect on the draft were passed:
The HCF group is led by Jin Meng Ho
The AP Mobility group is led by Adrian Stephens
The MAC Frames group is led by Matthew Sherman
The FEC group is led by Sunghyun Choi
The OBSS group is led by Matthew Sherman (and will commence after the completion of MAC Frames)
The "Everything Else" group is led by Keith Amman
- Normative text from Document 02/016r0 (Wireless Address Resolution Protocol) was adopted by a vote of 27:0:8
- Normative text from Document 02/018r0 (Normative Text for direct WSTA-WSTA communication) was adopted by a unanimous vote.
- A motion was passed to instruct the editor to delete the words: “..and/or increase CCI length to reduce contention..” from subclause 220.127.116.11 of the draft by a vote of 15:1:12
- A motion was passed to instruct the editor to remove bridge portals and all references to bridge portals from the draft by a vote of 45:5:4.
- A motion was passed to instruct the editor to simplify the draft by removing persistence factors and all references to persistence factors from the draft by a vote of 68:12:8.
- Normative text from Document 01/408r4, slides 20, 21, and 22 (regarding the AIFS) was adopted by a vote of 25:1:2
- A motion to "replace the frame formats figures and text pertaining to the burst acknowledgment mechanism in the draft with those provided in document 02/004r4a" was passed by a vote of 31:0:4.
- To address comments on the HCF, a motion to "empower the editor to change all instances of xx[TC], including AIFS[TC], CWmin[TC], and CWmax[TC], to xxx[UP], after defining the acronym UP, which means User Priority, and to change working the make the revised draft consistent with the above changes" was passed by a vote of 34:0:3.
- To address comments on FEC, a motion to "instruct the editor to add normative text to section 18.104.22.168 as stated in 02/077r0 Change 1" was passed by a vote of 27:1:5.
- To address comments on FEC, a motion "To change the text according to the suggested resolution in Comment 23 by Michael Fischer “....”" was passed with unanimous consent.
- To address comments on AP Mobility, a motion to "Instruct the editor to amend the TGe draft as specified in 02/066r3" was passed with unanimous consent.
- To address comments on FEC, a motion "to instruct the editor to adopt the text in 11-02-115r0 into the draft, which contains the updated text for section 7.5" was passed with unanimous consent.
From the 266 voters on record, 221 votes were received, and 218 of these were valid votes.Yes 101 votes 54.6%
No 84 votes 45.4%
Abstain 33 votes 15.1%
At the November meeting, the objective was to release a new version of the draft to letter ballot. The group entertained motions and presentations related to Draft D1.4. A number of motions were made to instruct the editor to modify the draft.
An editing team was formed to assist the editor in incorporating the passed motions into the draft.
The following motions having an effect on the draft were passed:
Motions were passed to request the 802.11 WG to schedule joint sessions combining TGe and TGi, and joint sessions combining TGe and TGh.
Motion - to instruct the editor to modify the draft by incorporating the normative text in document 01/624r0. (passes 20:3:14)
- Burst Size, Rate Field
Motion – instruct the editor to modify the draft by incorporating the normative text in document 01/560r0 which do not pertain to Peter Johanssen’s presentation with the exception that the encoding of rate information be modified to use the definitions contained in the supported rates. (unanimous consent)
- PIFS or SIFS after error
Motion – Empower the TGe editor to revise the draft as instructed in slide 13 of document 01/605r2a. (unanimous consent)
Motion 2 – Instruct the editor to incorporate the normative text in the Word document 01/605r2 and add the following text: “If the CCA is busy at the ESTA which is expecting the ACK response during the first slot following SIFS after the end of the transmission of the final frame, it means that the channel control has been successfully transferred and no further action is necessary, even though the ACK from HC is not correctly received. And add an explicit frame that can end a TXOP: A QoS Null frame with NF=0, NoACK = 0 And add to all occurrences of QoS Null frame with NoAck=0 with the phrase “TXOP Duration Request field set to 0”.” (Passes 26 : 7 :11)
- Clarification on HCF Frame Exchange Rules
Motion – Empower the TGe editor to revise the draft to incorporate the clarification in slide 4 of document 01/546r4 (unanimous consent)
- Signaling for Parameterized QoS Support
Motion 1 – To incorporate the ch anges and additions provided on slides 11-42 of document 557r0 into the next version of IEEE 802.11e draft. (Passes 43 : 0 : 3)
Motion 2 – To incorporate the changes and additions provided on slide 66 of document 557r0 into the next version of IEEE 802.11e draft with the change of the first parameter of the “max” function reference in 22.214.171.124 from “4” to “2” and a change of the “shall” in the first line of the of the change in 9.10.3 to “should”. (unanimous consent)
- Burst Acknowledgment Mechanism
Motion – Empower the TGe editor to revise the TGe draft according to the instructions in document 11-01-126r1 replacing all text relating to the Delayed Acknowledgment. (unanimous consent)
- QoS for AV
Motion – instruct the editor to incorporate the normative text in document 01/597r1 into the draft. (Passes 22:6:6)
A motion was passed to empower the January 2002 meeting of TGe to be able to ask the working group to issue a letter ballot..
The editing team consolidated the changes resulting from the previous motions into a new draft, which was reviewed by the group and voted on.The AV Study Group, which is investigating issues related to Audio and Video with 802.11e, met during two TGe sessions.
Approval of draft D2.0 for Letter Ballot
Motion – to instruct the editor to create 802.11e draft standard revision D2.0 from the contents of D1.9-1, and thereafter ask the 802.11 WG to create a letter ballot requesting the WG to forward the 802.11e draft standard D2.0 to sponsor ballot. (Passes 35:2:6)
Michael Fischer - Editor - Task Group e
At the July meeting, the group continued to resolve comments from letter ballot 27. Papers and submissions were presented on subjects related to the resolution of comments. A number of motions were made to instruct the editor to modify the draft.
The following motions having an effect on the draft were passed:Motions were passed to empower the editor to create a new draft based on these changes, and to empower the Task Group to issue a Letter Ballot at the September Interim meeting.
Motion – to instruct the editor to remove autonomous bursting from the draft. (Unanimous) Motion – to instruct the editor to remove maxMSDUlifetime from the draft. (Passes 24:5:2) Motion to draft normative text to add the aCWMax[TC] from the MIB to the EDCF information element. (Passes 11:7:17) Motion to instruct the editor to delete all instances of and references to the remote hybrid coordinator and proxy beacons from the draft (Unanimous consent) Motion – to instruct the editor to remove CF-MultiPoll from the draft. (passes 35:9:11) Motion to instruct the editor to remove the permission probability field and all references to it from the CC/RR frames (Passes 40:7:6) Motion to instruct the editor to modify the draft according to the normative text found in document 01/481r0 (HCF NAV Rules) (Unanimous) Motion to instruct the editor to modify the draft by modifying the normative text according to instructions in 01/412r1 (Aligning 802.11e HCF and 802.11h TPC Operations) (Unanimous) Motion to instruct the editor to remove all references to the container frames from the draft. (Unanimous) Motion to instruct the editor to modify the draft using the normative text and editing instructions contained in 01/458r1 (FEC Capability and Control) (Passes 48:0:5)
The AV Study Group, which is investigating issues related to Audio and Video with 802.11e, met during two TGe sessions.
At the March meeting, a motion was approved split MAC Enhancements into separate task groups for QoS and Security. At this meeting TGe QoS began operating completely independently from the TGi Security task group. Although the TGe QoS Letter Ballot 27 on Draft 1.0 (P802_11E-Q-D1_0.pdf) was not scheduled to close until after the May meeting, many comments had been received, and were processed during ad-hoc comment resolution sessions. Comments were categorized and resolutions recorded in documents 261 through 267:01/261 802.11e Letter Ballot 27 Comments Clause 3Letter Ballot 27 closed on May 20th. There were 140 votes cast.
01/262 802.11e Letter Ballot 27 Comments Clause 5
01/263R1 802.11e Letter Ballot 27 Comments Clause 6
01/264 802.11e Letter Ballot 27 Comments Clause 7
01/265 802.11e Letter Ballot 27 Comments Clause 9
01/266 802.11e Letter Ballot 27 Comments Clause 11
01/267 802.11e Letter Ballot 27 Comments - General
The results are: Yes: 45 (38%) No: 74 (62%) Abstain: 21 (15%)
TGe will hold five conference calls for the purpose of continuing comment resolution on TGe letter ballot 27. The teleconferences have been scheduled for: May 30, June 6, 13, 20, and 27. (Call in number 304-345-7354; Participants code 512895; Time 1:00PM EDST to 4:00PM EDST)
A study group within TGe on the subject of AV Transport over 802.11e was started during the meeting. John Kowalski is the chair.
TGe meeting minutes are in doc 01/238 Minutes of 802.11 Task Group E MAC Enhancements - QoS
At the July meeting, TGe will complete the processing of letter ballot comments, and adopt the proposed resolutions by vote. Then a new draft incorporating the accepted changes will be generated, and another letter ballot will be issued.
Task Group E adopted draft text and will conduct Letter Ballots for 802.11E QoS and 802.11E Security.
There was considerable debate in the TGe QoS subgroup over the selection of the EDCF mechanism. The VDCF proposal (document 131r1) was selected as the Enhanced Distributed Coordination Function (EDCF) and adopted into the baseline QoS draft D0.1. The QoS Subgroup also adopted the Hybrid Coordination Function (HCF, document 110r1). These two components complete the functionality requirements for 802.11e. The resulting draft was approved to be sent to Letter Ballot, and upon approval, forwarding to Sponsor Ballot. TGe-QoS also adopted document 120r3 as the draft text for clause 7.5, specifying an optional FEC mechanism for 802.11e.
TGe-Security forwarded revised PARs to the Standards Board to separate TGe-Security into a new task group. The TGe Security subgroup adopted document 01/018r4 as the TGe-Security Draft Text D1.0, and forwarded it to Letter Ballot, and upon approval, to Sponsor Ballot (under the new task group PAR, subject to approval of the new PAR).
TGe passed a motion to adopt document 00/360r2 with the inclusion
of the EDCF text placeholder adopted during the November Plenary (in
Minutes of TGe 126.96.36.199) and the insertion of the subclause headings for
and 11 as TGe draft revision D0.1.
TGe adopted as a requirement for consideration of motions to modify the normative content of the TGe draft that the relevant proposed content have been available to the group at least half a day (4 in-session 802.11 hours preceding the motion.) The chair may overrule an motion for text if it is felt that there hasn’t been available for a sufficient time for consideration. TGe passed a motion to empower the TGe chair to request of the WG chair inclusion of the rule specified in the preceding motion in the operating rules announced to the body in the openings of meetings.
The output of the QoS group is in document 00/360r2. The output of the security group is in document 01/018.
The TGe draft adopted at the January meeting includes text for the PCF extensions. There has been no text included in the draft for normative requirements to enhance the DCF. Until normative text to enhance the DCF is adopted into the draft, TGe will receive/consider submissions, proposals, or draft text for the DCF enhancement.
In the March 2001 meeting, the objective will be to submit the draft for a working group letter ballot. Comments received and Resolutions from Letter Ballot 21.
USEFUL LINKS TO OTHER SITES:
IEEE P802.11 WLANs RELATED
This page is maintained by Stuart J. Kerry and Tim Godfrey. Comments are welcome.