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95th Session of meetings of the IEEE 802.15 Working Group for Wireless Personal Area Networks

This document summarizes the objectives and activities of the IEEE 802.15 Working Group meetings held from March 8-13, 2015 in Berlin, Germany. It includes updates on various task groups, study groups, and interest groups within the Working Group.

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95th Session of meetings of the IEEE 802.15 Working Group for Wireless Personal Area Networks

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  1. 95th Session of meetings of the IEEE 802.15 Working Group for Wireless Personal Area Networks March 8-13, 2015 Estrel Hotel and Convention Center Berlin, Germany Robert F. Heile, ZigBee Alliance

  2. 802.15WG Chair Bob Heile, ZigBee Alliance 802.15 Vice Chairs Rick Alfvin, VeriLAN Pat Kinney, Kinney Consulting 802.15 Organization Chart Secretary Pat Kinney, Kinney Consulting Assistant Secretary Mike McInnis, Boeing Working Group Technical Editor James Gilb To add your name to the WG/TG/SG/IG reflectors please go to www.ieee802.org/15 Study Groups/Interest Groups SCs for New Projects (WNG), Maintenance, Rules Chair: Pat Kinney, Kinney Consulting Study Groups: High Rate Close Proximty Chair: Andrew Estrada Sony Interest Groups TeraHertz (THZ) Chair: Thomas Kürner, Technische Universität Braunschweig Dependability (of Radio Links) Ryuji Kohno, High Rate Rail Communications Chair: Junhyeong Kim, ETRI 6Tisch Chair: Pat Kinney, Kinney Consulting Task Groups TG3d 100Gbps PHY Thomas Kuerner, Chair Technische Universität Braunschweig TG7R Optical Wireless Communications Yeong Min Jang, Kookmin University Chair TG4n 15.4 China MBAN PHY Art Astrin, Astrin Radio Chair TG8 Peer Aware Communcations Miung Lee, CUNY Chair TG15.4q Ultra Low Power (ULP) 15.4 Shahriar Emami, Samsung Chair TG9 Key Management Protocol Robert Moskowitz, Verizon Chair TG4r 15.4 Distance Meas. Tech (DMT) Dietrmar Eggart, Atmel Chair x TG10 Layer 2 Routing Clint Powell Chair TG4s Spectrum Resource Use (SRU) Chair: Shoichi Kitazawa, ATR Wave Engineering Laboratories Robert F. Heile, ZigBee Alliance

  3. Berlin Session ObjectivesMarch 8-13, 2015 TASK GROUP 3d –100Gbps THz PHY Review and Discuss Contributions Update Project Plan/Timeline TASK GROUP 4n –China MBAN Will Complete first Sponsor Ballot Resolve ResolveBallot comments Update Project Plan/Timeline Task Group 4q: 15.4 Ultra Low Power Amendment Resolve received comments on recirc2 Seek conditional approval to start sponsor ballot Update Project Timeline accordingly Robert F. Heile, ZigBee Alliance

  4. Berlin Session ObjectivesMarch 8-13, 2015 Task Group 4r Distance Measurements Techniques Call for Nominations for a TG Chair Prepare the CFP Update Project Timeline TASK GROUP 4s Spectrum Resoucre Utilization(SRU) Work on Technical Guidance Doc (TGD) Prepare the CFP Update Project Timeline Task Group 7R Optical Wireless Communications (OWC) Hold a project tutorial for 802 Begin Developing TGD Generate/Update Project Timeline Robert F. Heile, ZigBee Alliance

  5. Berlin Session ObjectivesMarch 8-13, 2015 • TASK GROUP-8 Peer Aware Communications • Continue work on draft • Update Project Plan/Timeline • TASK GROUP 9 –Key Management Protocol: • Letter Ballot Comment Resolution • Seek cond. approval to start Sponsor Ballot • Update Project Plan/Timeline • TASK GROUP 10--Layer 2 Routing (L2R): • Finalize draft • Seek approval to start Letter Ballot • Update Project Plan/Timeline Robert F. Heile, ZigBee Alliance

  6. Berlin Session ObjectivesMarch 8-13, 2015 High Rate Close Proximity Study Group: Secure approval for the PAR and CSD Begin work on developing a draft Develop draft timeline THz Interest Group: Hear presentations relating to THz comms. Review ongoing mission/goals Dependability Interest Group: Hear Contributions Discuss future of the Committee Robert F. Heile, ZigBee Alliance

  7. High Rate Railroad Communications IG Discuss opportunities for standards work Review ongoing mission of the group 6 TiSCH Interest Group Hear contributions Discuss positions for IETF92 NEW PROJECTS SUBCOMMITTEE (WNG) ULP presentation by James Gild Maintenance Standing Committee 15.4 Revision activity- Finish Comment Resolution Seek Conditional Approval to start Sponsor Ballot Berlin Session ObjectivesMarch 8-13, 2015 Robert F. Heile, ZigBee Alliance

  8. Robert F. Heile, ZigBee Alliance

  9. TG 3d Berlin March 2015 Closing Report Robert F. Heile, ZigBee Alliance

  10. Meetings/Contributions • 5 meetings (including 1 joint meeting with IG THz and 1 joint meeting with SG 3e) • Contributions: • Contribution #1:Iwao Hosako, “New element of section 6 in ARD” (15-15-0139r00)  • Contribution #2Thomas Kürner, “Contribution to section 7 in ARD”(15-15-0160r00) • Contribution #3Alexander Fricke, “Contribution to section 5 in ARD”(15-15-0161r00)  • Contribution #4: Sebastian Rey, “Some thoughts on Evaluation Criteria”; (Document 15-15-0219-01-003d) Robert F. Heile, ZigBee Alliance

  11. Contributions (contd.) • Contribution #5:Alexander Fricke, " Measuring the Terahertz Intra-Device Propagation Channel“ (15-15-0166r00) • Contribution #6: Bile Peng, “A Stochastic THz Channel Model in Wireless Data Centers,” (15-15-0207r00) • Contribution #7:Sebastian Rey, “TERAPAN: Ultra-high Data Rate Transmission with steerable Antennas at 300 GHz”; (Document 15-15-0167-01-003d) • Contribution #8: Bile Peng, “Fast Beam Searching Concept for Indoor Terahertz Communications”; (Document 15-15-0205-01-003d) Robert F. Heile, ZigBee Alliance

  12. Tasks Completed • ARD (15-14-0304r13) completed, to be approved in YVR • CMD (15-14-0310r06) restructured, input from this session to be included until YVR • TRD (15-14-0309r04) reviewed • Update on Time Planning (15-14-0155r6) • New editors for • CMD (Alexander Fricke) • ECD (Sebastian Rey) Robert F. Heile, ZigBee Alliance

  13. SG 3e Berlin March 2015 Closing Report Robert F. Heile, ZigBee Alliance

  14. Meetings/Contributions • 7 meetings (including 1 joint session with TG3d) • contributions: • Contribution #1 : Sihn Gyung-Chul, “A method how to revise numbering a document” (Document 15-15-0176-00-003e) • Contribution #2 : Seok-Jin Lee,” Proposed Change for SG3e TGD”(15-15-0185r00) • Contribution #3: Ken Hiraga, Masashi Shimizu, “Kiosk use case of close proximity communication,” (15-15-0200r00) • Contribution #4: Sebastian Rey, “Some thoughts on Evaluation Criteria”; (Document 15-15-0219-01-003d) • Contribution #5: : Sihn Gyung-Chul, “Proposed Change for SG3e TGD 5.1.5,” (15-15-0234r00) Robert F. Heile, ZigBee Alliance

  15. Tasks completed Responding to comments on PAR and CSD (15-15-0229-03) Revision of CSD (15-14-0716-07) Revision of TGD (15-15-109-03) Time Planning (15-15-0208-01) Robert F. Heile, ZigBee Alliance

  16. Motion to extend the SG 3e Motion: that the 802.15 Working Group seeks approval from the 802 EC to extend the study group 3e in 802.15 to develop the PAR and CSD documents for High-Rate Close-Proximity (HRCP) Moved by: Thomas Kürner Robert F. Heile, ZigBee Alliance

  17. IEEE 802.15.4n Task Group Closing Report China Medical Bands Berlin, Germany March 9-12, 2015 Robert F. Heile, ZigBee Alliance

  18. 802.15.4n China Medical Bands The Chair, Vice Chair and Secretary were unable to attend so no meetings were held Group just successfully completed the first Sponsor Ballot The WG on behalf of the TG renewed the BRC that was formed at the ATL session last January to allow the group to move forward on comment resolution. BRC call times and dates have been preannounced. See group reflector archives Robert F. Heile, ZigBee Alliance

  19. IEEE 802.15.4q Task Group Closing Report 15th Meeting of the ULP Task Group Berlin, Germany March 9-12, 2015 Robert F. Heile, ZigBee Alliance

  20. March 2015 Session • Secretary: ChandrashekharThejaswiPS • Total of 6 time slots Robert F. Heile, ZigBee Alliance

  21. Achievement this week Comment resolution: Went over some of the 216 comments on the second recirculation letter ballot (#101) and provide resolutions. About 160 comments were resolved. Provided a response to Gilb’s proposal presented in Jan. Robert F. Heile, ZigBee Alliance

  22. Plan for May Meeting Comment resolution Preparation for recirc. Robert F. Heile, ZigBee Alliance

  23. Teleconferences From Feb 16, 2015 to April 15, 2015 Every Wednesday 8:00PM PDT/7:00PM PST From April 16, 2015 to Sept. 13, 2015 Every Wednesday 7:00AM PDT Robert F. Heile, ZigBee Alliance

  24. TG4q Timeline Preliminary work Call for applications Dec 2012 Applications presentations Jan 2013 TGD outline Mar 2013 TGD, applications and channel modeling contribution call Mar 2013 Review TGD contributions May 2013 TGD Ongoing & review application contributions Jul 2013 Proposal effort Call for intent Jul 2013 TGD completed Sep 2013 Call for proposals Sep 2013 Proposal presentations Nov 2013 Drafting First draft May 2014 Ballotabledraft Jul 2014 Robert F. Heile, ZigBee Alliance

  25. TG4q Timeline (cont’) Balloting WG letter ballot (#95) Oct 2014 First WG LB recirculation (#100) Dec 2014 Second WG LB recirculation (#101)Feb 2015 Conditional approval of sponsor ballot Mar 2015 Sponsor ballot Apr 2015 First SB recirculation May 2015 Conditional approval to submit to Revcom July 2015 Robert F. Heile, ZigBee Alliance

  26. WG Motion: BRC Formation Move that 802.15 WG to approve the formation of a Ballot Resolution Committee (BRC) for the WG balloting of the 802.15.4q draft standard with the following membership: • Chiu Ngo (Chair) • Allan Zhu (Huawei) • Hendricus De Ruijter (Silicon Lab) • Guido Dolmans (IMEC) • Kiran Bynam (Samsung) • ChandrashekharThejaswi PS (Samsung) The 802.15.4q BRC is authorized to approve comment resolutions on behalf of the 802.15 WG. Comment resolution between sessions will be conducted via reflector email and via teleconferences announced to the reflector at least 30 days in advance. Moved by: Chiu Ngo Seconded by: Clint Powell Approved by unanimous consent Robert F. Heile, ZigBee Alliance

  27. Conditional Sponsor Ballot Initial Ballot closed 17 October 2014 Vote results (pool of 102 voters)86 responses (84.3 response ratio)68 yes, 12 no (85.31 approval ratio)6 abstain (6.98% abstain ratio)301 total comments received, 195 Must Be Satisfied(62 accepted, 62 rejected, 71 revised) Recirculation Ballot 1 closed 10 Jan, 2015 Vote results (pool of 102 voters)91 responses (89.22% response ratio)72 yes, 13 no (84.71% approval ratio)6 abstain (6.59% abstain ratio)120 total comments received, 104 Must Be Satisfied(48 accepted, 34 rejected, 22 revised) Robert F. Heile, ZigBee Alliance

  28. Status Review of Balloting (cont’) Recirculation Ballot 2 closed 5 March, 2015 Vote results (pool of 102 voters)94 responses (92.16% response ratio)77 yes, 11 no (87.5% approval ratio)6 abstain (6.38% abstain ratio)216 total comments received, 171 Must Be Satisfied(107 accepted, 1 rejected, 13 revised, 50 pending) Robert F. Heile, ZigBee Alliance

  29. WG Motion: Conditional Sponsor Ballot Move that the 802.15 WG to request conditional approval from the 802 EC to submit 802.15.4q revision draft to Sponsor Ballot. Moved by: Chiu Ngo Seconded by: Clint Powell Y/N/A = 29/7/2 Robert F. Heile, ZigBee Alliance

  30. Thank you! Robert F. Heile, ZigBee Alliance

  31. TG4r DMTBerlin March 2015 Closing Report Robert F. Heile, ZigBee Alliance

  32. TG4r Meeting Goals • Wednesday 11 March, PM2: • Discussion on expanding the scope of TG4r’s PAR Slide 32 Robert F. Heile, ZigBee Alliance

  33. The IEEE-SA strongly recommends that at each WG meeting the chair or a designee: Show slides #1 through #4 of this presentation Advise the WG attendees that: The IEEE’s patent policy is consistent with the ANSI patent policy and is described in Clause 6 of the IEEE-SA Standards Board Bylaws; Early identification of patent claims which may be essential for the use of standards under development is strongly encouraged; There may be Essential Patent Claims of which the IEEE is not aware. Additionally, neither the IEEE, the WG, nor the WG chair can ensure the accuracy or completeness of any assurance or whether any such assurance is, in fact, of a Patent Claim that is essential for the use of the standard under development. Instruct the WG Secretary to record in the minutes of the relevant WG meeting: That the foregoing information was provided and that slides 1 through 4 (and this slide 0, if applicable) were shown; That the chair or designee provided an opportunity for participants to identify patent claim(s)/patent application claim(s) and/or the holder of patent claim(s)/patent application claim(s) of which the participant is personally aware and that may be essential for the use of that standard Any responses that were given, specifically the patent claim(s)/patent application claim(s) and/or the holder of the patent claim(s)/patent application claim(s) that were identified (if any) and by whom. The WG Chair shall ensure that a request is made to any identified holders of potential essential patent claim(s) to complete and submit a Letter of Assurance. It is recommended that the WG chair review the guidance in IEEE-SA Standards Board Operations Manual 6.3.5 and in FAQs 12 and 12a on inclusion of potential Essential Patent Claims by incorporation or by reference. Note: WG includes Working Groups, Task Groups, and other standards-developing committees with a PAR approved by the IEEE-SA Standards Board. Instructions for the WG Chair Slide 33 Robert F. Heile, ZigBee Alliance

  34. Historical Perspective IEEE Std. 802.15.4 has been amended many times with minimal PHY changes necessary to address new markets or market changes Typically, each PHY amendment added only those MAC changes necessary to implement that PHY, in other words it seldom anticipated making those MAC changes applicable to other PHYs Robert F. Heile, ZigBee Alliance

  35. Historical Perspective (cont’d) • The current IEEE Std. 802.15.4 is now confusing to the reader as to which MAC operations are compatible with which PHYs • Need exists for consistent, standardized methods to apply specific MAC operations to all or almost all PHYs • This would allow the high layer to specify the MAC automatic operation, e.g. a default? Robert F. Heile, ZigBee Alliance

  36. Current TG4r PAR Scope This amendment integrates wireless ranging techniques and technologies, including those existing within IEEE 802.15.4 and new to IEEE 802.15.4, into a consistent, standardized method addressing the needs of a wide range of applications and PHYs and enabling the interoperability of devices by different vendors using this method. Additionally, the amendment defines necessary MAC and PHY extensions which enable common radio based distance measurements. Robert F. Heile, ZigBee Alliance

  37. Other Modes/Operations with Similar Needs Dynamic Data Rate Selection Dynamic Transmit Power Selection Asymmetric Link Operation Channel Hopping Operation Dynamic Channel Selection Dynamic Preamble Selection Dynamic Modulation Selection Others? Robert F. Heile, ZigBee Alliance

  38. Dynamic Data Rate (DDR) Selection • Many PHYs have multiple data rates • Data rates are currently specified by a higher layer but often data rates could be better set by the MAC on a link-by-link basis • To allow MAC to set the data rate, would need to: • Define an automatic data rate determination algorithm • Define common methods for MAC to select specific PHY data rates, FEC, PHY preambles, etc. • Since the MAC already knows whether frames have been dropped DDR selection would allow the MAC to understand the timing parameters Robert F. Heile, ZigBee Alliance

  39. Dynamic Transmit Power Levels (DTPL) • Many PHYs have defined multiple transmit power levels • Transmit power levels are currently specified by a higher layer but often these levels could be better set by the MAC on a link-by-link basis • To allow MAC to set the transmit power level it may need to: • Determine the CSMA impact (note: GTS or TSCH operation would have no affect) • Define a default automatic power level determination algorithm with option to download another • Define common methods for MAC to select specific PHY power levels based upon PHY preambles, PHY FEC, signal strength, failed packets, etc. • Tell the device on the other side of the link what it’s contemplating Robert F. Heile, ZigBee Alliance

  40. Asymmetric Link Operation Asymmetric Link Operation (ALO) is preferred for some networks with many end devices, as it allows the end devices to operate at low energy levels, etc. Example applications include shelf tags, etc. Optimized network operation for high performance device (HPD) along with low performance devices (LPDs) HPDs acting as coordinators enable lower cost LPDs to reduce energy consumption MAC ALO would free the higher layer from having to set up a network with HPDs and LPDs. Robert F. Heile, ZigBee Alliance

  41. Channel Hopping Operation • Channel Hopping is preferred for some networks operating in interference prone environments. • Example applications include smart grid and industrial • Channel hopping networks require a: • known hop sequence • a channel white list and a channel black list • a method to alter hop sequence on-the-fly • a method to synchronize, • a known clock (network wide? local area only?) • MAC channel hopping would not require the higher layers to understand radio operation Robert F. Heile, ZigBee Alliance

  42. Backward Compatibility Add a new primitive parameter to the primitives e.g. Auto-DDR, Auto-DTPL, Auto-CH, Auto-ALO Older devices would continue to use the current methods, i.e. over-ride the automatic mode Setting Auto-xxx to TRUE would tell the MAC to ignore the legacy values Robert F. Heile, ZigBee Alliance

  43. Proposal to Go Forward 802.15 members requested to seek corporate “buy-in” into this effort Repurpose TG-4r by amending its PAR and CSD (PAR is already MAC/PHY) Set up teams to address each area: ranging, DDR, DTPL, ALO, CHO, etc. Work with existing TGs to coordinate efforts Robert F. Heile, ZigBee Alliance

  44. Proposed TG4r PAR Modified Scope This amendment integrates wireless ranging techniques and technologies for ranging, dynamic data rates, dynamic transmit power selection, asymmetric link operation, and time scheduled channel hopping (TSCH), including those existing within IEEE 802.15.4 and new to IEEE 802.15.4, into aconsistent, standardized methods addressing the needs of a wide range of applications and PHYs and enabling the interoperability of devices by different vendors using thisese methods. Additionally, the amendment defines necessary MAC and PHY extensions which enable common radio based operations such as distance measurements. Robert F. Heile, ZigBee Alliance

  45. CSD The CSD would also have to be modified as appropriate Robert F. Heile, ZigBee Alliance

  46. Conference Call Thursday, 16 April at 16:00 BST Robert F. Heile, ZigBee Alliance

  47. IEEE 802.15 TG4sClosing report Berlin, GermanyMarch 12, 2015 Robert F. Heile, ZigBee Alliance

  48. Agenda items for the week TG4s meeting call to order Call for essential patents and policies & procedures reminder Approve Atlanta meeting and Teleconference minutes Hearing Presentations Work on Technical Guidance Document Plan for Teleconference and May meeting Report on progress to WG Robert F. Heile, ZigBee Alliance

  49. Accomplishment for the meeting Three meetings were held on Monday PM2 and Thursday.AM1 and AM2. Approved January and February Teleconference meeting minutes. Heard 3 presentations. Discussed about Technical Guidance Document (15-14-555) and Spectrum Resource Measurement and Management requirement table (15-15-89) Confirm of plan for Teleconference and May meeting. Robert F. Heile, ZigBee Alliance

  50. Contributions TG4s March 2015 Agenda(15-15-133) TG4s Opening Information for March 2015 (15-15-186) TG4s Teleconference Minutes for February 2015 (15-15-122r1) TG4s Technical Guidance Document (15-14-555r3) Use case proposal for Technical Guidance Document (15-15-177) Additional TG4s use case and consideration of SRM information (15-15-199) Metrics used in some Wireless Sensor Network standards (15-15-72r1) Robert F. Heile, ZigBee Alliance

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