TG4e

January 2009 IEEE 15-09-0081-00-004e

Pat Kinney, Kinney Consulting LLCSlide 1

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

Submission Title: TG4e Closing Report for January 2009Date Submitted: January 2009Source: Pat Kinney, Kinney Consulting LLC Contact: Pat Kinney, Kinney Consulting LLCVoice: +1 847 960-3715, E-Mail: pat.kinney@ieee.orgRe: TG4e Closing Report for January 2009 SessionAbstract: Closing Report for the TG4e Session in LA, CAPurpose: Amendments to IEEE 802.15.4 MAC 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.

TG4e

January 2009 IEEE 15-09-0081-00-004e

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TG4e PAR Scope of Proposed Standard The intention of this amendment is to enhance and add functionality to

the 802.15.4-2006 MAC to a) better support the industrial markets and b) permit compatibility with modifications being proposed within the Chinese WPAN.

Specifically, the MAC enhancements are limited to:• TDMA: to provide a) determinism, b) enhanced utilization of

bandwidth• Channel Hopping: to provide additional robustness in high

interfering environments and enhance coexistence with other wireless networks

• GTS: to increase its flexibility such as a) supporting peer to peer, b) the length of the slot, and c) number of slots

• CSMA: to improve throughput and reduce energy consumption• Security: to add support for additional options such as asymmetrical

keys• Low latency: to reduce end to end delivery time such as needed for

control applications

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January 2009 IEEE 15-09-0081-00-004e

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Purpose of Proposed Standard

This functionality facilitates Industrial applications (such as addressed by HART 7 and the ISA100 proposed standards), and those enhancements defined by the proposed Chinese WPAN standard that aren't included in TG4c. This amendment addresses coexistence with wireless protocols such as 802.11, 802.15.1, 802.15.3, and 802.15.4.

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Meeting Goals Proposers to define how their proposal addresses

the MAC behavior categories

TG4e will select proposals based upon how they address the MAC behavior categories

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January 2009 IEEE 15-09-0081-00-004e

Proceeding from Proposals to Draft Define Application spaces: Define MAC behaviors that must be

added/enhanced per application space Define those application spaces that TG4e will

address Define MAC behaviors that proposals will

add/enhance Review proposals based upon Application

Space/MAC behavior5. TG selection of MAC behavior proposals6. Draft changes

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January 2009 IEEE 15-09-0081-00-004e

Proposed Application Spaces• Factory Automation: Michael Bahr• Process Automation: Chol Su Kang• Asset Tracking: Wei Hong• Commercial Building Automation: Rudi Belliardi• General Sensor Control (Industrial/Commercial):

Liang Li• Home Medical Health/Monitor: Seong-Soon Joo• Telecom Application: Betty Zhao

– Information Service– File Sharing

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January 2009 IEEE 15-09-0081-00-004e

MAC Behavior Categories• ACK• Channel diversity

– Hopping (adaptive, black lists, etc)– agility

• Superframe– GTS– TDMA

• Low Power– Low duty cycle

• Overhead reduction– Short MAC headers

• MESH support– Path diversity

• Time synchronization– Relative– Access to absolute time

•Resource Scheduling•Portability

•Fast association/disassociation•Associationless

•Beacon scheduling•Scalability

TG4e

January 2009 IEEE 15-09-0081-00-004e

Presentations• Proposal for Factory Automation (15-09-024-00)• EGTS Joint proposal, Supporting Joint EGTS

Extension, EGTS Optimization, (15-09-043-04)• Security and Efficiency Enhancements (15-04-

828-00) • Time Slotted, Channel Hopping MAC Behaviors

(15-09-067-00) • Enhancement to 802.15.4-2006 on Superframe

and Channel Diversity (15-09-062-00-004e) • Enhancements enabling Standby Coordinator (15-

08-0602-00)

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January 2009 IEEE 15-09-0081-00-004e

nonbeacon-enabled PANbeacon-enabled PAN

E-GTS TDMA

Contention AccessContention Access

802.15.4

Contention-Free Contention-Free

FactoryAutomation

ISA, HCF

ZigBee, 802.15.5

Overhead Reduction/Security

Low Energy

Channel Diversity

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January 2009 IEEE 15-09-0081-00-004e

Sub Groups• EGTS

– Myung Lee• TSCH

– Chol Su Kang Factory Automation

– Michael Bahr• Overhead Reduction/Security

– Rene Struik• Low Energy

– Wei Hong• Channel Diversity

– Wun-Cheol Jeong

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January 2009 IEEE 15-09-0081-00-004e

Sub-Group Deliverables

• Anticipated Changes to Standard • Backward Compatibility Description• Application Support Levels

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Proposed TG4e Baseline Schedule1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9

Task Group Formed XCall for application Dec 2007 XSelection criteria document XCall for intent to propose XCall for proposal issued X

Preliminary Proposals XPresent final proposals XBaseline proposal selectedProposal draft completed X X1st letter ballot completed X

Resolution of comments completed XRe-circulation completed X

Resolve re-circulation comments2nd re-circulation X

Resolve 2nd re-circulation comments.3rd re-circulation X

Resolve 3rd re-circulation comments.Sponsor ballot period X

Sponsor ballot comment resolution. XRe-circulation completed X

RevCom Approval X

2008 2009 2010

TG4e

January 2009 IEEE 15-09-0081-00-004e

Scheduled Conference Calls

• Schedule– Every other Tuesday, 3 February and 17

February – 6:00 PST, 9:00 EST, 15:00 CET, 23:00 Tokyo

• Conference Call Information– +1.218.936.1600– access code: 802154

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