Doc.: IEEE 802.11-15/645r1 May 2015 TGax MU ad-hoc groupSlide 1 TGax MU ad-hoc May 2015 Agenda Date:...

doc.: IEEE 802.11-15/645r1May 2015

TGax MU ad-hoc groupSlide 1

TGax MU ad-hoc May 2015 Agenda Date: 2015-05-13

Name Affiliation Address Phone email Kaushik Josiam Samsung

Electronics 1301 E. Lookout Dr Richardson TX 75082

[email protected]

Kiseon Ryu LG Electronics 19, Yangjae-daero 11gil, Seocho-gu, Seoul 137-130, Korea

[email protected]

Sigurd Schelstraete Quantenna Communications

3450 W. Warren Ave Fremont, CA 94538

[email protected]

Authors:

doc.: IEEE 802.11-15/645r1May 2015

IEEE 802.11 TGaxHigh Efficiency WLAN

MU Ad Hoc

Co-Chairs: Kaushik Josiam (Samsung)

Kiseon Ryu (LG Electronics)Sigurd Schelstraete (Quantenna)


doc.: IEEE 802.11-15/645r1May 2015

TGax MU ad-hoc groupSlide 3Slide 3

Meeting Protocol

• Please announce your affiliation when you first address the group during a meeting slot

doc.: IEEE 802.11-15/645r1May 2015

TGax MU ad-hoc groupSlide 4Slide 4

Attendance• https://murphy.events.ieee.org/imat/attendance/index

1. Register

2. Indicate attendance

See document 11-09-0517r0 for more details

https://murphy.events.ieee.org/imat/attendance/index

doc.: IEEE 802.11-15/645r1May 2015


Agenda ItemsMay 12 2015, 10:30AM – 12:30PM

• Call meeting to order • Patent policy, etc. (Call for Potentially Essential Patents)• Set and approve agenda• Note ad hoc rules • Note MU ad hoc sessions this week

– Tuesday AM1 • Technical Presentations approved by 802.11ax chair for

presentation this week, and related straw polls• Any other technical presentations

doc.: IEEE 802.11-15/645r1May 2015


Agenda ItemsMay 13 2015, 1:30PM – 3:30PM

• Call meeting to order• Patent policy, etc. (Call for Potentially Essential Patents)• Set and approve agenda• Note ad hoc rules • Presentations• Adjourn

doc.: IEEE 802.11-15/645r1May 2015


Participants, Patents, and Duty to InformAll participants in this meeting have certain obligations under the IEEE-SA Patent Policy. Participants: – “Shall inform the IEEE (or cause the IEEE to be informed)” of the identity of each

“holder of any potential Essential Patent Claims of which they are personally aware” if the claims are owned or controlled by the participant or the entity the participant is from, employed by, or otherwise represents

• “Personal awareness” means that the participant “is personally aware that the holder may have a potential Essential Patent Claim,” even if the participant is not personally aware of the specific patents or patent claims

– “Should inform the IEEE (or cause the IEEE to be informed)” of the identity of “any other holders of such potential Essential Patent Claims” (that is, third parties that are not affiliated with the participant, with the participant’s employer, or with anyone else that the participant is from or otherwise represents)

– The above does not apply if the patent claim is already the subject of an Accepted Letter of Assurance that applies to the proposed standard(s) under consideration by this group

Quoted text excerpted from IEEE-SA Standards Board Bylaws subclause 6.2• Early identification of holders of potential Essential Patent Claims is strongly encouraged• No duty to perform a patent search

Slide #1

doc.: IEEE 802.11-15/645r1May 2015


Patent Related LinksAll participants should be familiar with their obligations under the IEEE-SA Policies & Procedures for standards development.Patent Policy is stated in these sources:

IEEE-SA Standards Boards Bylawshttp://standards.ieee.org/guides/bylaws/sect6-7.html#6IEEE-SA Standards Board Operations Manualhttp://standards.ieee.org/guides/opman/sect6.html#6.3

Material about the patent policy is available at http://standards.ieee.org/board/pat/pat-material.html

Slide #2

If you have questions, contact the IEEE-SA Standards Board Patent Committee Administrator at [email protected] or visit http://standards.ieee.org/board/pat/index.html

This slide set is available at http://standards.ieee.org/board/pat/pat-slideset.ppt

doc.: IEEE 802.11-15/645r1May 2015


Call for Potentially Essential Patents

• If anyone in this meeting is personally aware of the holder of any patent claims that are potentially essential to implementation of the proposed standard(s) under consideration by this group and that are not already the subject of an Accepted Letter of Assurance: – Either speak up now or– Provide the chair of this group with the identity of the holder(s) of any and all such

claims as soon as possible or– Cause an LOA to be submitted

Slide #3

doc.: IEEE 802.11-15/645r1May 2015


Other Guidelines for IEEE WG Meetings

• All IEEE-SA standards meetings shall be conducted in compliance with all applicable laws, including antitrust and competition laws. – Don’t discuss the interpretation, validity, or essentiality of patents/patent

claims.

– Don’t discuss specific license rates, terms, or conditions.• Relative costs, including licensing costs of essential patent claims, of different

technical approaches may be discussed in standards development meetings.

– Technical considerations remain primary focus

– Don’t discuss or engage in the fixing of product prices, allocation of customers, or division of sales markets.

– Don’t discuss the status or substance of ongoing or threatened litigation.

– Don’t be silent if inappropriate topics are discussed … do formally object.---------------------------------------------------------------

See IEEE-SA Standards Board Operations Manual, clause 5.3.10 and “Promoting Competition and Innovation: What You Need to Know about the IEEE Standards Association's Antitrust and Competition Policy” for

more details.

Slide #4

doc.: IEEE 802.11-15/645r1

• A straw poll needs to achieves at least 75% at the ad-hoc level to be converted to a motion at the TG level.

• In the case a consensus can not be reached within an Ad Hoc group (a stalemate that prohibits further progress), the subject is moved to the Task group, if an Ad Hoc straw poll vote to move the subject to the Taskgroup achieves >50% approval.

• A straw poll affecting the Spec Framework has to start with, – Do you agree to add to the TG Specification Frame work document?– x.y.z. <feature description>

• For further details, please see the operating rules for Tgax Ad-hoc groups– https://

mentor.ieee.org/802.11/dcn/15/11-15-0075-00-00ax-operating-rules-for-tgax-ad-hoc-groups.docx

Ad-hoc Group Straw poll rulesDocument: 15/0075r0

May 2015


https://mentor.ieee.org/802.11/dcn/15/11-15-0075-00-00ax-operating-rules-for-tgax-ad-hoc-groups.docx



doc.: IEEE 802.11-15/645r1

Submissions (MU)

May 2015


DCN Title Author

11-15/0568 Frequency Selective Scheduling (FSS) for TGax OFDMA

Kome Oteri MU

11-15/0586 Frequency Diversity Options in OFDMA Reza Hedayat MU

11-15/0587 Uplink ACK and BA Multiplexing Reza Hedayat MU

11-15/0608 Regarding trigger frame in UL MU Tomoko Adachi MU

11-15/0378 Channel Sensing in UL OFDMA Reza Hedayat MU

11-15/0612 Multi channel availability for UL-OFDMA Woojin Ahn MU

11-15/0597 Beamformed HE PPDU Yongho Seok MU

doc.: IEEE 802.11-15/645r1

Jinsoo Ahn, Yonsei UniversitySlide 13

MU Straw Poll #1

• Should we consider adding RU based feedback to the SFD?

• Y/N/A: 38/3/42• No TG Motion required

May 2015

doc.: IEEE 802.11-15/645r1

• What kind of information should be specified in a trigger frame?– target STAs (TBD, could be MAC address/AID/Group ID)

• Unanimous consent• No TG Motion required

MU Straw Poll #2

May 2015

Sigurd SchelstraeteSlide 14

doc.: IEEE 802.11-15/645r1

• What kind of information should be specified in a trigger frame?– resource allocation per STA (also vote yes if you think it will be

addressed by Group ID)


MU Straw Poll #3

May 2015


doc.: IEEE 802.11-15/645r1

• What kind of information should be specified in a trigger frame?– PPDU duration (TBD, may be exact or maximum)


MU Straw Poll #4

May 2015


doc.: IEEE 802.11-15/645r1

• What kind of information should be specified in a trigger frame?– access category

Y:N:A= 5/17/many

• No TG Motion required

MU Straw Poll #5

May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #6

• For an AP to send the trigger frame for UL MU TX, do you think it is useful if a STA is able to notify the AP of its TX demand by a field something like a More Data field in a frame sent from its side?


May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #7

• Do you agree to add the following to 11ax SFD:– DL MU PPDU may act as Trigger frame for the multiplexed

AC/BA frame that follows the DL MU frame.

• Y/N/A: 39/18/22• Strawpoll doesn’t exceed 75% approval

May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #8

• Do you agree to add the following to the TG specification framework document:– A DL MU PPDU shall not signal explicitly the resource

assignment for ACK or BA frames that follow the DL MU frame.

• Y/N/A: 26/36/19• Strawpoll doesn’t exceed 75% approval

May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #9

• UL-OFDMA procedure should consider the effect of different channel availability between AP and UL STAs

• Y: 8• N: 0• A: 25

• No TG Motion required

May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #10

• Do you agree to add the following to the TG specification framework document:– 4.x Multi-user (MU) features

• The amendment shall define a sounding procedure for reporting DL CSI feedback using UL MU mode.

• Y/N/A: 6/0/Many• Strawpoll meets 75%

May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #11

• Do you agree to add the following to the TG specification framework document:– 4.y.z The specification shall define a frequency diversity mode for

DL OFDMA that is optionally present in DL OFDMA PPDUs.

Note: Frequency diversity mode is a mode that allows to exploit the frequency diversity across the transmission bandwidth of a PPDU.

• After discussion from the floor SP is postponed and may be revisited in TG

May 2015


doc.: IEEE 802.11-15/645r1

MU Straw Poll #12

• Do you agree to add the following to the TG specification framework document:– 4.x.x TGax shall provide mechanisms that enable physical channel

sensing (ED and CS) across the bandwidth and throughout the duration of an UL OFDMA PPDU.

• After discussion from the floor SP is postponed and may be revisited in TG

May 2015


Doc.: IEEE 802.11-15/645r1 May 2015 TGax MU ad-hoc groupSlide 1 TGax MU ad-hoc May 2015 Agenda Date:...

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