# IEEE P802.11 – Task Group AZ - MEETINGS UPDATE

# Status of IEEE 802.11az

## Next Generation Positioning (NGP)

Leadership:

Jonathan Segev (Intel Corporation), Chair

Carlos Aldana (Intel Corporation), Vice-chair
Chao-Chun Wang (MediaTek), Technical Editor

## Page Contents

Background

Goals

Task group documents

May 2017 – Daejeon, Korea

March 2017 – Vancouver, Canada

Jan. 2017 – Atlanta, Georgia

Nov. 2016 – San Antonio, Texas

Sep 2016 – Warsaw, Poland

July 2016 – San Diego, California

May 2016 – Waikoloa, Hawaii

March 2016 – Macau, China

January 2016 – Atlanta, Georgia

November 2015 – Dallas, Texas

September 2015 – Bangkok, Thailand

## Background

On January 2015 the Next Generation Positioning Study Group (NGP SG) a study group within the IEEE 802.11 working group had started its activity to address the needs of a Station to identify its absolute and relative position to another station or stations it’s either associated or unassociated with.

The NGP SG has successfully developed a PAR and CSD documents and project 802.11az initiated its work on Sep. 2015.

## Goals

To defines modifications to both the IEEE 802.11 medium access control layer (MAC) and physical layers (PHY) of High Throughput (HT), Very High Throughput (VHT), Directional Multi Gigabit (DMG) and PHYs under concurrent development (e.g. High Efficiency WLAN (HEW), Next Generation 60GHz (NG60)) that enables determination of absolute and relative position with better accuracy with respect to the Fine Timing Measurement (FTM) protocol executing on the same PHY-type, while reducing existing wireless medium use and power consumption and is scalable to dense deployments.

## ______________________________________________

## Task group documents – latest revision as of Mar. 17th

· Approved TG PAR and CSD

· 11-17/462 SFD working Draft

· 11-16/424 TGaz Functional Requirements Document working draft

· 11-16/137 TG approved Use Case document

## ______________________________________________

## May 2017 – Daejeon, Korea

Leadership:

• Chair - Jonathan Segev (Intel Corporation)

• Vice chair and acting secretary - Carlos Aldana (Intel Corporation)

• TG Secretary – Roy Want (Google)

• Technical Editor - Chao-Chun Wang (MediaTek)

Group met during the following meeting slots:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  | AZ | AZ |  |
PM 2 |  |  |  | AZ |
Eve |  |  |  |  |

Main meeting documents:

· 11-17-534-TGaz May Meeting Agenda

· 11-17-535-TGaz May Closing Report

· 11-17-577-Meeting Minutes March 2017 Session

· 11-17-610-Apr 19th Telecon Minutes

Main meeting achievements:

• SFD:

Reviewed and adopted text to Spec. Framework on following topics:

v MU measurement resource allocation in unassociated and associated modes.

v MU Negotiation Resource allocation in the unassociated mode.

v Negotiation and Trigger Frame frame formats.

v Measurement resource multiplexing techniques (OFDMA, P-Matrix, TDMA).

v Secured measurements execution and secured context establishment in the unassociated mode.

Total of 14 submissions considered and discussed.

• FRD:

v A single approved change to FRD on scalable location was made during the May meeting.

v Group approve FRD and initiate 45 days comment collection to be resolved till end of the next FtF (July).

Teleconferences:

• May 31st (Wed.) 11:00AM ET for 1hr.

July 2017 plans:

• Complete a 45 day comment collection for TG approved FRD.

• Complete resolving comment resolution by the end of the July IEEE 802.11 WG meeting.

• Continue SFD development.

• Consider technical proposals.

Timelines:

• Group reviewed timelines and progress made since last meeting.

• FRD is mostly completed, a single requirement considered and approved during the May meeting.

• Current timelines show FRD freeze post the May meeting, while the document is still open for comment collection and resolution.

If FRD comment resolution completes bye end of the July meeting no effect on other future milestones projected at this time.

• SFD section dealing with the 2.4Ghz and 5Ghz range and accuracy looks to be maturing well with protocol fundamentals shown on

most parts of protocol aspects. If this trend continues, amendment text can follow shortly.

## ______________________________________________

## March 2017 – Vancouver, Canada

Leadership:

• Chair - Jonathan Segev (Intel Corporation)

• Vice chair and acting secretary - Carlos Aldana (Intel Corporation)

• Technical Editor - Chao-Chun Wang (MediaTek)

Group met during the following meeting slots:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  | AZ |
AM2 |  |  |  |  |
PM1 |  | AZ | AZ |  |
PM 2 |  |  |  |  |
Eve |  |  |  |  |

Main meeting documents:

· 17-11-0097-TGaz March Meeting Agenda

· 11-17-510-TGaz March Closing Report

· 11-17-205-Meeting Minutes January 2017 Session

Main meeting achievements:

• TG approved new FRD and SFD working drafts.

• Reviewed and adopted text to Spec. Framework on SU Ranging Sequence, MU Trigger frame design and addressing scheme for the <6Ghz band.

• Reviewed technical submissions on negotiation resource allocation, design consideration for near far problem of class B devices and on scalable protocol design.

• Reviewed program progress and status.

• Set telecon times and goals for May meeting.

Teleconferences:

• Apr. 19th (Wed.) 10:00AM ET for 1hr.

May 2017 plans:

• Continue on Functional Requirement Document development and bring FRD to maturity.

• Approve submissions of technical material towards SFD text.

• Review technical submissions on various aspects of protocol.

Timelines:

• Group reviewed timelines and progress made.

• Current timelines show FRD freeze post the May meeting:

• FRD is mostly completed on the range and accuracy in <6Ghz, security, 60Ghz and scalability sections however angular may still be missing some text.

## ______________________________________________

## Jan. 2017 – Atlanta, Georgia

Leadership:

• Chair - Jonathan Segev (Intel Corporation)

• Vice chair and acting secretary - Carlos Aldana (Intel Corporation)

• Technical Editor - Chao-Chun Wang (MediaTek)

Group met during the following meeting slots:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  | AZ |
PM1 |  | AZ | AZ |  |
Eve |  |  |  |  |

Main meeting documents:

· 11-16-1599-TGaz Jan. Meeting Agenda

· 11-17-0096-TGaz Jan. Closing Report

· 11-16-1563-Meeting Minutes November 2016 Session

Main meeting achievements:

• Reviewed and adopted text to Spec. Framework on ranging protocol sounding format and sounding sequence for the <6Ghz band as well LOS requirements for the 60Gz band.

• Reviewed and adopted a threat model for a secured location protocol to FRD, this will enable design and evaluation of secured protocol functionality.

• Reviewed technical submissions on measurement exchange and negotiation and secured location approaches.

• Defined goals for D0.1.

• Reviewed and approved updated program timelines.

• Set telecon times and goals for March meeting.

Teleconferences:

• Mar. 8th (Wed.) 10:00AM ET for 1hr.

March 2017 plans:

• Continue development of FRD and SFD development.

• Review technical submissions on measurement phase approaches, feedback types and design, negotiation phase and other adaptation to 11ax MU and SU modes, NG60/11ad and secured location schemes.

Timeline:

• Group has reviewed and updated its timelines.

• Group discussed and approved the following goals for D0.1:

• SFD feature freeze worthy (actual freeze happens on D1.0) in at least 2 of the focus areas.

• The protocol is 50% complete, but not sufficiently mature to go to internal TG CR (no formal process).

## ______________________________________________

## Nov. 2016 – San Antonio, Texas

Leadership:

• Chair - Jonathan Segev (Intel Corporation)

• Vice chair and acting secretary - Carlos Aldana (Intel Corporation)

• Technical Editor - Chao-Chun Wang (MediaTek)

Group met during the following meeting slots:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  | AZ |
AM2 |  |  |  |  |
PM1 |  | AZ | AZ | AZ |
PM2 |  |  |  |  |
Eve |  |  |  |  |

Main meeting documents:

· 11-16-1309-TGaz San Nov. Meeting Agenda

· 11-16-1548-TGaz Nov. Closing Report

· 11-16-1320-802.11az Meeting Minutes September 2016 Session

· 11-16-1535- proposed liaison response to 3GPP RAN4 on RTT

· 11-16-1338-00-0000-liaison-from-3gpp-ran4-on-rtt-measurement-accuracy

Main meeting achievements:

• Reviewed and approved 3GPP Liaison letter on WLAN RTT accuracy.

• Reviewed and adopted text to Spec. Framework on protocol elementary stages: discovery, negotiation and measurement exchange.

• Reviewed technical submissions on measurement exchange, negotiation and secured location.

• Set telecon times and goals for Nov. meeting.

Teleconferences:

• Nov. 30th 10:00 ET for 1hr.

Jan. 2017 plans:

• Continue development of FRD and SFD development.

• Review technical submissions on measurement phase approaches, negotiation phase, adaptation to 11ax MU mode and secured location schemes.

Timeline:

• Reviewed timelines, and identified schedule slip.

• The progress made during this session is encouraging, however still hard to evaluate an overall project slip and new project timelines.

• Group made aware of this, if the current progress continues to the next sessions a new timeline will be presented.

• Last approved TG timelines:

## ______________________________________________

## Sep. 2016 – Warsaw, Poland

Leadership:

• Chair - Jonathan Segev (Intel Corporation)

• Vice chair and acting secretary - Carlos Aldana (Intel Corporation)

• Technical Editor - Chao-Chun Wang (MediaTek)

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  | AZ | AZ |  |
PM2 |  |  |  |  |
Eve |  |  |  |  |

Main meeting documents

• 11-16/750 Agenda document

• 11-16/1280 Sep. closing report

• 11-16/441 SFD template

• 11-16/1076 Approved TGaz July meeting minutes

• 11-16/1249 Efficient Positioning Method Applicable in Dense Multi User Scenarios

• 11-16/1256 Functional requirement for secure ranging

• 11-16-1260 Location Measurement Protocol for Unassociated STAs

• 11-16/1013r3 Locationing Protocol for 11az

Main meeting achievements:

Reviewed proposals on:

• Channel Sounding approaches

• Functional Requirements for Security enhancements

• Negotiation phase in an 11ax MU mode

• Set telecon times and goals for Nov. meeting.

Teleconferences:

• Nov. 2nd 10:00 ET for 1hr.

Nov. 2016 plans

• Continue on Functional Requirement Document development.

• Approve initial submissions of technical material towards SFD text where FRD is sufficiently mature.

• Review technical submissions on measurement phase approaches, negotiation phase, adaptation to 11ax MU mode and secured location schemes.

Timeline

• Reviewed timelines, and identified schedule slip. Hard to evaluate and update impact to overall program as SFD and FRD progress during this session were limited.

• Group made aware of this, and once progress is made timelines to be reevaluated.

• Last approved TG timelines:

## ______________________________________________

## July 2016 – San Diego, California

Leadership:

• Chair - Jonathan Segev (Intel Corporation)

• Vice chair and acting secretary - Carlos Aldana (Intel Corporation)

• Technical Editor - Chao-Chun Wang (MediaTek)

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  | AZ | AZ |  |
PM2 |  |  |  |  |
Eve |  |  |  |  |

Main meeting documents

• 11-16/752 Agenda document

• 11-16/751 July closing report

• 11-16/441 SFD template

• 11-16/424 TGaz Functional Requirements Document working draft

• 11-16/778 Approved TGaz May meeting minutes

• 11-16/1013 Locationing Protocol for 11az

• 11-16/1015 Location Measurement Protocol for 11ax

• 11-16/1010 Proposed functional requirements for 11az

• 11-16/1020 Security Enhancement to FTM

Main meeting achievements:

• Reviewed and approved a working draft Functional Requirement Doc based on functional requirements motioned during the May meeting.

• Reviewed 2 submissions on channel sounding mechanisms based on 11ax infrastructure.

• Reviewed proposal for secured ranging protocol based on the REVmc FTM

• Reviewed proposal for functional requirements changes.

Teleconferences:

• Sep. 7th 10:00 ET for 1hr.

Sep. 2016 plans

• Continue on Functional Requirement Document development.

• Approve initial submissions of technical material towards SFD text where FRD is sufficiently mature.

• Review technical submissions on channel models, proposed technical protocols and technical approaches and such.

Timeline

• Reviewed timelines, and identified schedule slip. Hard to evaluate and update impact to overall program as progress during this session was limited.

• Group made aware of this, and once progress is made timelines to be reevaluated.

• Last approved TG timelines:

## ______________________________________________

## May 2016 – Waikoloa, Hawaii

Leadership:

· Chair Jonathan Segev

· Vice chair Carlos Aldana

· Technical Editor Chao-Chun Wang

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  |  | NGP |  |
PM2 |  | NGP |  |  |
Eve |  |  |  |  |

Main documents reviewed

· 11-16/492 Agenda document

· 11-16/508 May closing report

· 11-16/441 SFD template

· 11-16/424 TGaz Functional Requirements Document working draft

· 11-16/137 TG approved Use Case document

· 11-16/507 Approved TGaz March meeting minutes

· 11-16-595 Proposed functional requirements for network based positioning

· 11-16-593 11ax derived functional requirements

· 11-16-448 functional requirements for scalability

· 11-16-594 11az positioning protocol

· 11-16-579 Functional requirements for 802.11az

Main meeting achievements:

• Reviewed and approved a working draft Functional Requirement Doc.

• Motioned total of 17 functional requirements on accuracy/coverage and scalability sections.

• Review and commit to an updated project timelines (no change to major milestones).

• TG re-affirmed leadership – no change.

Teleconferences:

• June 15th 10:00 ET for 1hr.

June 2016 plans

• Continue on Functional Requirement Document development.

• Approve initial submissions of technical material towards SFD text where FRD is sufficiently mature.

• Review technical submissions on channel models, proposed technical protocols and technical approaches and such

• Evaluate TG timelines and alignment to current TG POR.

Timeline

· During the meeting TGaz reviewed the progress and alignment to the timelines (no change to major milestones):

## ______________________________________________

## March 2016 – Macau, China

Leadership:

· Chair Jonathan Segev

· Vice chair Carlos Aldana

· Technical Editor Chao-Chun Wang

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  |  | NGP | NGP |
PM2 |  | NGP |  |  |
Eve |  |  |  |  |

Main documents

· 11-16/218 Agenda document

· 11-16/479 March closing report

· 11-16/441 SRD template

· 11-16/424 TGaz Functional Requirements Document working draft

· 11-16/137 TG approved Use Case document

· 11-16/213 Approved TGaz Jan. meeting minutes

Main meeting achievements:

• First working draft of the Functional Requirements Document working draft approved by TG.

• Spec Framework Document template approved by TG.

• Approved two additional batches of functional requirements:

o 1st batch of scalable location protocol for the 2.4Ghz and 5Ghz bands.

o 2nd batch of functional requirements for the 60Ghz band.

• Agreed to freeze use-case document.

Teleconferences:

• May. 4th 10:00 ET for 1hr.

May 2016 plans

• Continue on Functional Requirement Document development.

• Approve initial submissions of technical material towards SFD text where FRD is sufficiently mature.

• Review technical submissions on channel models, proposed technical approaches etc.

• Call for submission for the FRD and SFD to be issued post this meeting.

Timeline

· During the meeting TGaz reviewed the progress and alignment to the timelines:

## ______________________________________________

## January 2016 – Atlanta, Georgia

Leadership:

· Chair Jonathan Segev

· Vice chair Carlos Aldana

· Technical Editor Chao-Chun Wang

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  |  | NGP |  |
PM2 |  | NGP |  |  |
Eve |  |  |  |  |

Main documents

· 11-15/1466 Agenda document

· 11-15/1467 Jan. closing report

· 11-16-137 TG approved Use Case document

· 11-15-1470 Approved TGaz Nov. meeting minutes

· 11-16-213 Draft TGaz Jan. meeting minutes

Main meeting achievements:

• Use case document completed and motioned.

• Initiated the functional requirements document and approved accuracy/coverage and millimeteric wave positioning requirements.

• Entertained SFD and Technical editor and FRD editor elections, Chao-Chun Wang (MediaTek) and Allan Zhu (Huawei), respectively, elected for these positions.

Teleconferences:

• Feb. 2nd 10:00 ET for 1hr.

Mar. 2016 plans

• Continue Functional Requirement Document.

• Continue review of technical submissions (performance analysis, positioning techniques, challenges etc.) as needed.

Timeline

· During the meeting TGaz reviewed the progress and alignment to the timelines:

## _____________________________________________

## November 2015 – Dallas, Texas

Leadership:

· Chair Jonathan Segev

· Vice chair Carlos Aldana

· Secretary Zhou Lan

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  |  |  |
AM2 |  |  |  |  |
PM1 |  |  | NGP | NGP |
PM2 |  | NGP |  |  |
Eve |  |  |  |  |

Main documents

- 11-15-1237 Agenda document
- 11-15-1463 Nov. closing report
- 11-15-388 Working draft Use Case document r2
- 11-15-1238 Approved TGaz Sep. meeting minutes
- 11-15-1470 Draft TGaz Nov. meeting minutes

Main meeting achievements:

• Reviewed and approved new baseline use case document.

• Continued development of use case document.

• Continued review of technical submissions.

• Entertained vice chair elections.

Teleconferences:

• Dec. 2nd 10:00 ET for 1hr.

Jan. 2016 plans

- Approve the final use case document.
- Initiate Functional Requirement Document.
- Continue review of technical submissions (performance analysis, positioning techniques, challenges etc.).

Timeline

· During the meeting TGaz reviewed the progress and alignment to the timelines:

## ______________________________________________

## September 2015 – Bangkok, Thailand

Pro-tem chair Jonathan Segev

Pro-tem secretary Zhou Lan

Group met during the following sessions:

| MON | TUE | WED | THU | FRI
AM1 |  |  | NGP |  |
AM2 |  |  |  | NGP |
PM1 |  |  |  |  |
PM2 |  | NGP |  |  |
Eve |  |  |  |  |

Main documents

- 11-15-1003 Agenda document
- 11-15-1195 Sep. closing report
- 11-15-388 Working draft Use Case document
- 11-15-970 Approved NGP SG July meeting minutes
- 11-15-1238 Draft TGaz minutes
- 11-15-1172 Response to ATIS Liaison on emergency location

Main meeting achievements:

• Reviewed, discussed and agreed on documentation and development process towards the development of draft amendment.

• Reviewed discussed and approved initial timelines.

• Adopted NGP SG working draft use case document and continued development of use case document.

• Responded to liaison from ATIS (Association for Telecommunication and Industry Solutions).

• Developed TG chair recommendation for WG chair approval.

Teleconferences:

• No teleconference scheduled.

Nov. 2015 plans

- Complete use case document development.
- Initiate Functional Requirement Document.
- Continue review of technical submissions (performance analysis, positioning techniques, challenges etc.).

Timeline

· During the meeting TGaz agreed on the following initial timeline and development process:

##

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