IEEE 802.15 <subject>

1
Project IEEE P802.15 Working Group for Wireless
Personal Area Networks (WPANs) Submission Title
TG3 MAC Subcommittee Merged MAC Report Date
Submitted November, 7 2000 Source Allen D.
Heberling Company Eastman Kodak, Co. Address
4545 East River Road, Rochester, New York
14650 Voice(716)-781-9328, FAX
(716)-781-9733, E-Mailallen.heberling_at_kodak.co
m Re Purpose To share with the 802.15.3
community the results of the TG3 MAC
Subcommittees Merged MAC meeting. 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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TG3 MAC Subcommittee Report

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MAC Subcommittees Merged MAC Meeting

• Who
• Alfvin, Ghori, Gubbi, Heberling, Kinney, Kubler,
  McCorkle, Meng-Ho, Parks, Rios, Roberts,
  Schrader, Siep, Shvodian, Stevenson, Welborn
• Where J. McCorkles Suite
• Why To provide a venue for mutual discussion
  regarding differences/similarities of the Parks
  and Kinney MAC proposals.

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Discussion

• G. Parks, R. Gubbi and A. Ghori described in
  detail the operation of their MAC protocol using
  SC-TDMA
• P.Kinney and J. Kubler described in detail their
  MAC proposals need for a Contention Access
  Period immediately following a beacon.

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Parks MAC Protocol Network Frame Format
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Kinneys MAC Protocol Superframe

• Maintain station synchronization
• coordinate sleep cycles
• FH coordination (if necessary)
• Asynchronous slot/cycle assignments
• Isochronous slot/cycle assignments

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MAC Protocol SuperframeContention Access Period
Contention Access Period
Contention Free Period
Beacon
Asynchronous slots
Isochronous slots

• All control messages such as
• attachment requests
• authentication responses
• slot cycle requests
• In addition short data frames could be sent in
  this period

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Resolution

• G. Parks asked if P. Kinney/J.Kubler would be
  comfortable if the ReQuest Slot were moved from
  the end of SC-TDMA sequence to immediately
  follow the Beacon as per the Kinney MAC proposal.
• P. Kinney/J. Kubler acknowledged they would.
• Consequently, ...

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Consensus

• The MAC subcommittee has agreed on a baseline
  combination of the Parks and Kinney MAC proposals.

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Consensus continued...

• The consensus approach is to use
• the Heberling/Schrader Slot Cycle-TDMA
  algorithm(currently included in both the Park and
  Kinney MAC proposals) with
• the Kinney contention access period slot
  allocation immediately following the beacon and
• the Parks multi-media QoS policies.

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Recommendation

• TG3 resume its confirmation (75) vote on the now
  merged Kinney/Parks MAC proposal
• aka Kinney/Parks/Heberling/Davis/Kubler/Skellern
  /Gubbi/Schrader/Rios MAC