ARC-SC-agenda-Nov-2018 Authors: Date: 2018-11-13
Abstract Agenda for: ARC SC, November 2018, Bangkok, Thailand
IEEE 802.11 Architecture Standing Committee Agenda November 2018 session Chair: Mark Hamilton (Ruckus/ARRIS) Vice Chair: Joe Levy (InterDigital)
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Participants, Patents, and Duty to Inform All participants in this meeting have certain obligations under the IEEE-SA Patent Policy. • Participants [Note: Quoted text excerpted from IEEE-SA Standards Board Bylaws subclause 6.2]: • “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 • “Should inform the IEEE (or cause the IEEE to be informed)” of the identity of “any other holders of 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 • Early identification of holders of potential Essential Patent Claims is strongly encouraged • No duty to perform a patent search
Patent Related Links All 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 Bylaws http://standards.ieee.org/develop/policies/bylaws/sect6-7.html#6 IEEE-SA Standards Board Operations Manual http://standards.ieee.org/develop/policies/opman/sect6.html#6.3 Material about the patent policy is available at http://standards.ieee.org/about/sasb/patcom/materials.html If you have questions, contact the IEEE-SA Standards Board Patent Committee Administrator at firstname.lastname@example.org or visit http://standards.ieee.org/about/sasb/patcom/index.html This slide set is available at https://development.standards.ieee.org/myproject/Public/mytools/mob/slideset.ppt
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ARC Agenda – November 2018 (1 of 2) Tuesday, November 13, PM2 • Administrative: Minutes • IEEE 1588 mapping to IEEE 802.11/802.1ASrev and use of FTM • 802 (and 802.1) activities: 802.1CQ:11-18/1934r0 • Local Administrator Advertisements: 11-18/2022r0 • IETF/802 coordination • WBA liaison, on MAC Address Randomization: 11-18/1579r1, 11-18/1671r0, 11-18/1988r0 Wednesday, November 14, AM1 • TGba (WUR) continued discussion:11-18/1017r0, 11-18/1020r5, 11-18/1494r2, 11-18/1641r0 • New topics: • Multiple MAC Addresses (and IPv6), “Multiple radios” • System architecture views for common use scenarios • Continue the other items (previous slide), as needed
ARC Agenda – September 2018 (2 of 2) Thursday, November 15, AM2 • Future sessions / SC activities • Finalize Response to WBA liaison, on MAC Address Randomization • NEW TOPIC: Multiple MAC Addresses (and IPv6), “Multiple radios” (any contributions?) • NEW TOPIC: System architecture views for common use scenarios (any contributions?) • “What is an ESS?”: 11-18/1051r3 • Consider IETF DetNet/time-sensitive networking input (potential relationship to RTA TIG?) • AP/DS/Portal architecture and 802 and GLK concepts - 11-17/0136r2, 11-16/1512r0, 11-16/0720r0, 11-15/0454r0, 11-14/1213r1 (slides 9-11) • MLME-RESET, versus MLME-JOIN and MLME-START • Does TGba discussion lead into other “split” PHYs (LC, 28 GHz (Phazr))? • Continue the other items (above/previous slide), as needed
Prior ARC Minutes • September face-to-face minutes: • https://mentor.ieee.org/802.11/dcn/18/11-18-1726-00-0arc-arc-sc-meeting-minutes-september-2018.docx • Oct 11 teleconference: • https://mentor.ieee.org/802.11/dcn/18/11-18-1758-00-0arc-arc-sc-teleconference-minutes-11-october-2018.docx
IEEE 1588 mapping to IEEE 802.11/802.1ASrev use of FTM update • Update (Ganesh Venkatesan) • IEEE 1588/802.1AS • First Sponsor Ballot of IEEE 1588 revision, Sept 17 – Oct 28 • 802.1ASrev use of 802.11 FTM: • D7.3 in WG recirculation comment resolution (802-1AS-rev-d7-3.pdf, 802-1AS-rev-d7-3-dis-v01.pdf )
IEEE 802 activities directly related to IEEE 802.11 ARC • 802.1CQ update (Antonio de la Oliva/Stephen McCann/Mike Montemurro/Roger Marks) • 802.1CQ in Scenarios and Functions gathering process • Considering Local MAC Address Assignment Protocol(LAAP) • Discovery of an address server for local addresses on the network • Relation to 802.11aq/other 802.11? • Discuss with ARC, and 11aq experts
IETF/802 coordination • Peter Yee present topics of interest:
WBA liaison on MAC Address randomization • Incoming liaison is here: 11-18/1579r1 • Points out several areas of concern for WBA members, if/when MAC Addresses are randomized • Majority of concerns (but not all) are higher layer uses • Majority of concerns are post-association w/random MAC Address • Discussion notes for 802.11 (ARC) discussion so far, are here: 11-18/1671r0 • Initial draft of response: 11-18/1988r0 • Continue discussion, complete proposed response
TGba architecture topics • Investigation of TGba (WUR) architecture topics • May lead into discussion of other “split” PHYs (LC, 28 GHz (Phazr)) - Thursday • Latest Presentations: • State machine view: 11-18/1020r5 • Power Saving overview (WUR experts): 11-18/1494r4 • Nomenclature proposal: 11-18/1641r0 • Architecture: 11-18/1017r1 • Background Presentations: • “802.11BA topics related to ARC” (Ganesh Venkatesan) 11-18/0533r2 • “11BA Arch Discussion” (Mark Hamilton) 11-17/1025r0 • Review of “802.11ba Architecture discussion” (Ganesh Venkatesan) 11-18/0884r1 • Review of “Definition of WUR Mode” (11-17-0972r2) • Review of Specification Framework (11-17/0575r11) • Review of inputs from ARC teleconferences: 11-18/1016r0, • Also see following slides
TGba architecture comments/answers to questions in 11-17/1025 (from July 10, 2017 TGba) Background Yes, fully independent PHY Probably independent MAC? Always co-located with AP or non-AP STA – a “companion” radio No MAC Address (?) WUR MAC (assuming it is independent) does need to coordinate with the main MAC. Main MAC negotiates a WUR ID on WUR’s behalf, for example. And, power on/off needs to be coordinated between them – might be through higher layer entity, though (?) WUR does not associate to the BSS (it doesn’t have a MAC Address) WUR only runs in 2.4/5 GHz. But, can work with all PHYs (maybe?) Mesh, IBSS, OCB uses are TBD in the future, not now
TGba architecture new questions (from July 12, 2017 ARC) Background Does every WUR stack have an individual “ID” (“WUR address”)? Or, could a given WUR stack be only addressed using a “group ID” in some scenarios? How are WUR ID’s made globally unique, or are they? What about overlapping WUR coverage? Prevented using the same solution as security protections? Prevented through selection of different sub-carriers? How does the WUR stack become aware of ongoing NAV protections? RX doesn’t need to know. What about the TXr? For protection – how much of a legacy frame header is sent? Just PHY header? Some MAC header (addresses? NAV? Etc) Is there any sharing (necessarily, as part of the design, not implementation choice) of RF front-end? What happens when the Main stack wakes up? Does it still have an association? Is it in some power save state (which)? “Yes, fully independent PHY” – is that for the RX side, or the TX side? What about error recovery? STA goes out of range? What if the AP changes (DFS, ITS, etc)?
TGba architecture potential assumptions (from July 12, 2017 ARC) Background How does the WUR stack become aware of ongoing NAV protections? RX doesn’t need to know. The master’s Main stack runs the usual medium access, and wait until it has a TXop, then triggers the WUR to TX. On the RXr, only one stack (WUR or Main) are active at a given point in time. When the Main stack wakes up, it still has an association and is in a power save state (a new “WUR” power save state). The Main stack TXs, which is the indication that the wakeup was successful and completed. There are RX–only WURs, at the sleeping node. There are TX-only WURs on the master node, and these are therefore (likely) different architecturally. The WUR “wakeup” frame does not NAV protect to cover the sleeping device’s Main radio waking up and TXing. Review 11-17/972 to confirm/before proceeding on the above
ARC Future Activities & sessions • ARC SC meets when a specific focused task is requested of the SC for which the is sufficient volunteer interest. • Continue work on architectural models, and liaison with TGs in development of their architecture as appropriate • Investigation of WUR architecture topics; may lead into “split” PHYs (LC, 28 GHz (Phazr)) • Investigation of 802.11 as part of a Deterministic Network • Multiple MAC Address discussion (IPv6) – perhaps “multiple radios” too • System architecture(s) for common use scenarios • Will also follow 802.1/802.11 activities on links, bridging, and MAC Service definition – “What is an ESS?”, for example • MLME-RESET, versus MLME-JOIN and MLME-START • Monitor/report on IETF/802 activities, as needed • Monitor/report on IEEE 1588 activities and 802.1ASrev use of FTM, as needed If you have ANY other topic that you would like ARC SC to consider, contact the SC chair.
Planning for January 2019 • Plan for three individual meeting slots • Usual slot on Wed AM1 • Another 2 slots for standalone ARC work (Monday/Tuesday?) • Plus Joint sessions: Another with TGba? • Individuals interested in ARC work are encouraged to also attend AANI SC sessions • Teleconferences: • None planned.
What is an ESS? See 11-18/1051r3
DetNet and other time-sensitive networking, (IETF, RTA TIG, etc.) IETF TSN paper declares 802.11 inappropriate for deterministic networking. But, 802.15.4 TSCH appears to be appropriate. Can 802.11 be used? If not, can/should 802.11 be “improved” so that it can be used? Does 11ax scheduling fit into this? What are the requirements coming from the RTA TIG, and do those change the above?
AP/DS/Portal architecture and 802 concepts • Presentations on architectural description(s) • https://mentor.ieee.org/802.11/dcn/17/11-17-0136-02-0arc-bridging-architecture-considerations.docx • Reference presentations (previously reviewed, current status of thinking): • https://mentor.ieee.org/802.11/dcn/14/11-14-1213-01-0arc-ap-arch-concepts-and-distribution-system-access.pptx • https://mentor.ieee.org/802.11/dcn/13/11-13-0115-15-0arc-considerations-on-ap-architectural-models.doc • https://mentor.ieee.org/802.11/dcn/14/11-14-0497-03-0arc-802-11-portal-and-802-1ac-convergence-function.pptx • https://mentor.ieee.org/802.11/dcn/14/11-14-0562-05-00ak-802-11ak-and-802-1ac-convergence-function.pptx • https://mentor.ieee.org/802.11/dcn/15/11-15-0454-00-0arc-some-more-ds-architecture-concepts.pptx • https://mentor.ieee.org/802.11/dcn/16/11-16-0720-00-0arc-stacked-architecture-discussion.pptx
MLME-RESET, versus MLME-JOIN and MLME-START Topic out of REVmd: • No apparent requirement for an “initial” MLME-RESET, in 802.11. So, what is the initial state? • Many MIB attributes describe taking effect at next MLME-JOIN or MLME-START. • MLME-JOIN occurs at each BSS transition • MLME-START occurs at less well-defined points, seems to require an MLME-RESET first • Do these attributes really take effect at these points, or at the MLME-RESET? • How about other state information, such as security association, block ack agreements, etc., etc.?