TG4a%20Opening%20Report

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Project IEEE P802.15 Working Group for Wireless
Personal Area Networks (WPANs) Submission Title
TG4b Opening/Closing Report for Monterey,
CA Date Submitted March 2005 Source Robert
Poor, Ember Corporation Contact Robert Poor,
Ember Corporation Voice 1 617 951-1231,
e-mail rpoor_at_ieee.org Re TG4b Closing Report
for March Session Abstract Closing Report for
the TG4b session in Atlanta, Georgia. Purpose To
provide information on define enhancements and
corrections to the existing standard, IEEE
802.15.4-2003. 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.
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TG4b Scope

• This project will define enhancements and
  corrections to the existing standard. The revised
  standard will be backward compatible with IEEE
  P802.15.4-2003.
• The considered enhancements shall be limited to
• A method for shared time-base distribution.
• Support for new frequency allocations for Europe,
  China, and Japan.
• Extension of 2.4GHz derivative modulation
  yielding higher data rates for the lower
  frequency bands.
• Mechanism for communicating the revision level.

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TG4b Scope (continued)

• The considered corrections are
• Resolving ambiguities.
• Removing unnecessary complexity, such as making
  GTS support optional and eliminating BUSY_RX,
  BUSY_TX, and FORCE_TRX_OFF from the PHY
  enumerations.
• Resolving issues such as long association time
  for non-beacon networks, inflexible security use,
  adding support for multicast, reducing MAC
  overhead and MAC header compression.

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TG4b Purpose

• The purpose of this revision is to extend the
  market applicability of IEEE 802.15.4-2003 and to
  remove ambiguities in the standard.
  Implementations of the current approved standard
  have revealed potential areas of improvements.
  Additional frequency bands are being made
  available in various countries that are
  attractive for this application space.

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Meeting Objectives

Review Letter Ballot Done.
Comment Resolution Done.
Prepare Motion for Recirculation Ballot Deferred.
Revise Schedule Done.
Joint Meeting with 802.19 Done.
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Letter Ballot, Comment Resolution

• Letter Ballot Results
• Y/N/A 177/18/22 (91, 9, 10)
• Week Start
• 1196 Comments E/T/TR 680/370/146
• Week End
• PHY ALL TRs examined, all have proposed solution
• MAC ALL TRs examined, all have proposed solution
• Security 12 TRs have proposed solutions, 3
  deferred, 18 remain open.

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Schedule will slip by 3 months

• We will request recirculation ballot at Cairns in
  May
• Revised schedule includes an extra recirculation
  ballot.
• Target Rev Com approval in June 06.
• Twice-weekly conference calls to resume 24 March
  (Thursdays) and 28 March (Mondays)

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Document Roadmap

• This Closing Report 15-05-0194-00-004b
• TG4b Minutes tba
• LB4b Status 15-05-0147-00-004b
• TG4b Timeline 15-04-0237-07-004b

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Ad Hoc Meetings

• TG4b will hold hoc meetings on May 2-3 and June
  20-21 for the purpose of Letter Ballot comment
  resolution.
• Note May 1-2 meeting tentatively scheduled for
  Boston, Massachusetts. June 20-21 meeting
  tentatively scheduled for Oslo, Norway.