5GSG Liaison Report Portland, Oregon

1
5GSG Liaison ReportPortland, Oregon

• Friday July 13, 2001

2
5GHz Study Group Original Intent Standard
Harmonization - Single Global Standard for 5GHz
WLANs International effort IEEE, ETSI, MMAC
Interim Objective Interworking mechanism
(TGj) Interworking Proposal Concepts Legacy
backward compatibility maintained Approaches so
far based upon superframes using either DCF or
PCF HCF now being investigated Likely to have no
impact on Client, AP implementation only Future
plan 5GHz Partnership Project now called 5WING
3
Motions

• The SG recommends a motion to the 802.11 WG to
  reconsider the approval and forwarding to Exec
  Com of the PAR and 5 criteria for TGj (Doc
  01-172, 01-173)
• Approved in SG 13-0-13
• Motion to extend the 5GSG until the November
  plenary with the original goals as previously
  adopted, allowing a joint discussion with the
  other standards bodies (ETSI BRAN, MMAC) in the
  September 2001 meeting of the Joint SG to refine
  the aforementioned goals.
• Approved in SG 21-2-2
• Background
• Attempt to split the activity of the 5GSG into
  two groups
• TGj and 5WING, where 5WING would look at future
  networks

4
Motion

• Motion to amend something previously adopted
• Amend the motion to substitute rescind for
  reconsider resulting in the following motion to
  be presented in the Closing Plenary
• The SG recommends a motion to the 802.11 WG to
  rescind the approval and forwarding to Exec Com
  of the PAR and 5 criteria for TGj (Doc 01-172,
  01-173)

5
Coordination Remains Important

• Three way Joint Study Group
• (IEEE, ETSI/BRAN, MMAC)
• Alternating ETSI and IEEE meeting venues
• Co-located meetings in September 2001
• (More) Formal representation from MMAC

6
BRAN 24 Activity

• European Telecommunications Standards Institute
• BRAN24 26 June to 29 June 2001
• Sophia-Antipolis, France
• Executive Summary - BRAN24d141
•  
• 1.      Defer decision to continue/discontinue
  the Inter-working project until after the IEEE
  meeting in Portland. It was noted that both BRAN
  and IEEE will be meeting during the same week in
  September in Seattle and a joint meeting at that
  time would be desirable and presumably easy to
  arrange.

7
MMAC Notice of Reorganization and Activities

• MMAC letter to ETSI BRAN and IEEE (BRAN24d140)
• Announcing reorganization
• The Convergence Ad-hoc Study Group of MMAC-PC
  (a.k.a CASG) met on 23rd May, 2001 to discuss how
  to proceed towards convergence of MMAC wireless
  systems, HiperLAN2 and IEEE802.11a using 5 GHz
  band
• CSMA WG work is done and will be closed soon.
• CSMA members shall directly participate in
  5GSG/IEEE802.11 meetings representing each
  company for the globalization discussion, if
  necessary.
• MMAC-PC will continue to work together with
  ETSI-BRAN and IEEE802.11 members within joint
  5GSG framework for short term harmonization.
• CASG participants agreed to create a new group to
  work toward a single standard of the next
  generation wireless LAN including wireless
  Homelink applications using 5GHz band. This new
  group will be a joint group comprising HiSWANa
  members and Wireless Homelink members of MMAC-PC.

8
Leadership

• Bruce Kraemer current chair in 5GSG as
  authorized by IEEE 802.11
• Jamshid Khun-Jush is vice chair
• Reorganization
• Nominate TK Tan as chair in 5GSG
• Nominate Bruce Kraemer as co-vice chair
• Any other nominations from the floor?
• A recommendation from 5GSG subject to approval by
  Stuart in 802 WG
• Result Unanimous consent (37 attendees)

9
Appendix

• Informational and Background Material

10
Amend something previously adopted

• This is a motion that can be used if it is
  desired to change only a part of the text or to
  substitute a different version.
• This requires a two-thirds vote

RONR (10th ed.), Section 35, pg 293 ff
11
Rescind

• A motion by which a previous action or order can
  be canceled or counter mended.
• The effect of rescind is to strike out an entire
  main motion that has been adopted at some
  previous time
• This requires a two-thirds vote

RONR (10th ed.), Section 35, pg 293 ff
12
Reconsider

• Reconsider enables a majority in an assembly to
  bring back for further consideration a motion
  which has already been voted on.
• The purpose of reconsidering a vote is to permit
  correction of hasty, ill-advised or erroneous
  action, or to take into account added information
  or a changed situation that has developed since
  the taking of the vote
• It can only be made by a member on the prevailing
  side during the session at which the original
  motion was approved.
• This requires a two-thirds vote

RONR (10th ed.), Section 37, pg 304 ff
13
PAR of Global 5GHz WLAN Standard (TGj)
Scope of Proposed Project Establish coexistence
and inter-working among the 802.11a, ETSI
HiperLAN/2, MMAC CSMA and HiSWANa standards.
Extension of each of the MAC and PHY layers of
these standards will be defined collaboratively
to achieve coexistence and inter-working. Purpose
of Proposed Project To establish coexistence
and inter-working among the 802.11a, ETSI
HiperLAN/2, MMAC CSMA and HiSWANa standards. A
subsequent project under a separate PAR is to
create a single converged standard in the 5GHz
band.
14
5GHz Standardization Roadmap
IW additions
IEEE 802.11a (wireless Ethernet)
IEEE 802.11e/f/h (QoS, Security, DFS/TPC, ..)
Joint SG Requirements Coexistence Inter-working Sp
ectrum
5WING Partnership Project (BRAN/IEEE/MMAC)
single global standard
Inter-working Standards Revisions
5GWIAG
BRAN-HL/2 (wireless ATM, IP)
Home Profile
HE phase2 UMTS - interworking Public Access
IW additions
2000
2001
MMAC also participating
Today
15
History of 5GSG Formation

• Liaisons on PHY during creation of 802.11a and
  HL2 (98-99)
• Substantial harmonization
• Initiated by 5GWLIAG (May 2000) to address
  problems of multiple standards at 5Ghz space
• Letters exchanged on request to recognize 802.11a
  as a member of HL2 (Jul 2000)
• Led to ETSI joining the Sept 2000 IEEE meeting
• Creation of Joint 5GSG (Sept 2000)
• Alternative meeting venues
• 5Ghz Global Standardization and Convergence
  discussion - IEEE September meeting, Scottsdale
• Industry consensus towards global standardization
  at 5Ghz
• Request for an 802.11 Study group (with
  coordination with ETSI BRAN and MMAC) to address
  these issues.
• LMSC Nov 9, 2000 approved formation of 5GSG (with
  contingencies of forming similar groups at ETSI
  BRAN and MMAC were fulfilled)