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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) PowerPoint Presentation
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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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  1. IEEE 15-11-0736-01-0ptc Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:[Update on IG PTC Progress, Efforts in 802 Groups] Date Submitted: [19 October, 2011] Source:[Jon Adams] Company [Independent] Address [12023 N 62nd St, Scottsdale, AZ 85254] Voice:[+1 415.683.0213], FAX: [Add FAX number], E-Mail:[] Re: [If this is a proposed revision, cite the original document.] Abstract:[Overview and rationale for selection of 802.15, Atlanta schedule, progress to TG.] Purpose:[For distribution to PTC-IG membership for their information.] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Jon Adams, Independent

  2. IEEE 15-11-0736-01-0ptc Update to Positive Train Control Interest Group Activities Jon Adams Interim Chair, PTC-IG Independent Jon Adams, Independent

  3. IEEE 15-11-0736-01-0ptc 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 • “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 • Early identification of holders of potential Essential Patent Claims is strongly encouraged • No duty to perform a patent search Jon Adams, Independent

  4. IEEE 15-11-0736-01-0ptc 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 IEEE-SA Standards Board Operations Manual Material about the patent policy is available at If you have questions, contact the IEEE-SA Standards Board Patent Committee Administrator at or visit This slide set is available at Jon Adams, Independent

  5. IEEE 15-11-0736-01-0ptc 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 Jon Adams, Independent

  6. IEEE 15-11-0736-01-0ptc 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. Jon Adams, Independent

  7. IEEE 15-11-0736-01-0ptc Wireless 802 Standards • Very successful ones include IEEE 802.11, 802.15, 802.16 • New and upcoming ones include 802.20, 802.22 • Why’d we consider 802.15 as a home for PTC? Jon Adams, Independent

  8. IEEE 15-11-0736-01-0ptc IEEE 802.11 Wireless LAN • Originally defined for “wireless Ethernet” • File transfer and general computer-to-computer connectivity was initial goal • Eliminate last 100m of cable that tethered computers from the late 80’s through the end of the century • Since its inception in 1997, added 25 amendments • Added PHYs (2.4GHz DSSS, FHSS, and IR initially), then new OFDM PHY (.11a), then MIMO, mobility support, and many new frequency bands • Added new MAC features (QoS for voice and video, mesh support, direct link, etc.) • Main goals are • Higher data rates (400-1000 Mbps) • Improved QoS for voice and video • Less concerned with • Bandwidth (20/40MHz channels, though 5MHz possible) • Power consumption not a particular concern • Range • Low data rates • Licensed frequency bands Jon Adams, Independent

  9. IEEE 15-11-0736-01-0ptc IEEE 802.16 Broadband Wireless Access • Originally envisioned as (my words) long-range wireless Ethernet • fixed point to point, and point to multipoint • Ranges up to 70km and data rates to 10+Mbps • Later amendments pushed toward mobility, and creating an alternative to 3G, especially for greenfield applications • Main goals now • high mobility • high data rates • long-range performance • Less concerned • channel bandwidth • power consumption • Low data rates Jon Adams, Independent

  10. IEEE 15-11-0736-01-0ptc IEEE 802.22 Wireless Regional Area Networks • Goal to develop a standard for a cognitive radio-based PHY/MAC/air interface for use by license-exempt devices on a non-interfering basis in spectrum that is allocated to the TV Broadcast Service • Enabling rural broadband wireless access as an alternative to other forms of broadband delivery • Less concerned with • Channel bandwidth • Power consumption • Mobility Jon Adams, Independent

  11. IEEE 15-11-0736-01-0ptc IEEE 802.15 Wireless PAN • Originally focused on short-distance (personal range) wireless networks • Of the family of standards, 802.15.4 is most successful • Simple, highly optimized digital packet radio transceiver with well-defined interfaces • Success of technology (100’s of millions of units) has driven it into dozens of markets and uses far beyond original intent • Ability to be used in a wide range of network topologies from point to point, point to multipoint (star), tree, and meshes, and others • Subsequent 15.4 amendments vastly expanded original abilities with • PHY • Ranges now to many 10’s of km • Accommodation of licensed and license-free channels • Data rates from kbps to 1Mbps • Channel bandwidths from 6.25kHz to 2MHz • Modulation formats including PSKs, FSKs, QAM • Spread spectrum techniques including Direct Sequence, Frequency Hop, and OFDM • MAC • Precise timeslotting for process control • Contention-free and contention based channel access • Support for broad variety of network topologies without change to basic radio function • Beacon-based and non-beacon operating modes • High security modes for medical, financial transactions • Flexibility of Working Group to new ideas and uses • IMHO, 802.15 is well suited to PTC needs • During Study Group Phase, we will explore whether or not PTC will be an amendment to 15.4 (another letter) or a new standard within 802.15 (e.g., 802.15.9) Jon Adams, Independent

  12. IEEE 15-11-0736-01-0ptc Purpose of this Interest Group • Define flexible wireless RF/PHY/MAC for PTC communications in the licensed 216-222 MHz band (US only) • Review existing PHY/MAC work in 802.15 for reuse or modification as appropriate • Amendments of particular interest • 802.15.4e (timeslotting MAC enhancements) • 802.15.4g (broad variety of PHY amendments) • 802.15.4k (critical infrastructure monitoring) • Define unique space for PTC within the existing body of in-process and published standards (don’t want to re-invent existing IEEE standards) Jon Adams, Independent

  13. IEEE 15-11-0736-01-0ptc Proposed Agenda for Atlanta • PTC Interest Group allocated 3 2-hour slots, all on Wednesday (AM1, PM1, PM2) • Topics to discuss • Aspects relevant to PTC radio link including • informational or educational topics, including aspects of existing PTC systems, historical systems including ATS, ATCS, ABS, etc., modern systems like I-ETMS, ACSES II, ITCS, VPTC, GSM-R, IEEE VTS efforts • Project Authorization Request Draft • Five Criteria Draft Jon Adams, Independent

  14. IEEE 15-11-0736-01-0ptc Optimal Path to Established Task Group • IG continues to build expertise, membership, and alignment of purpose • 802.15 WG Chair will sit in on one or more IG PTC sessions at ATL • IG Chair requests establishment of Study Group at Atlanta 802.15 Closing Plenary (Th 10 Nov, 1830-2030 EDT) • Vote must be 75% approve • 802.15 WG chair takes TG approval and summary of interest/organization/focus, and TG is approved at 802 EC on Fr 11 Nov • With approval, 802.15 PTC Study Group now established • SG works over November and December to complete PAR and 5C documents • Continues to get feedback from WG chair and officers to ensure necessary focus and minimal overlap • SG chair presents draft PAR and 5C at IEEE 802.15 Interim meeting at Jacksonville FL, 15-20 January 2012, requests promotion to TG status • With approval, 802.15 Chair takes PAR and 5C to NESCOM and EC for approval 30 days before next Plenary (Waikoloa HI, 11-16 March 2012) • With approval, TG (whether amendment or new standard) is established and may begin work as of March Plenary Jon Adams, Independent