1. doc.: IEEE 802.11-02/133r0 Mika Kasslin TGh chair
February 2002
doc.: IEEE /133r0
February 2002
BRAN#27 Report to TGh
Mika Kasslin
TGh chair
Mika Kasslin, Nokia
Mika Kasslin, Nokia

2. Content BRAN#27 topics Meeting results Author’s view on the status
February 2002
doc.: IEEE /133r0
February 2002
Content
BRAN#27 topics
Meeting results
Harmonised Standard
DFS Framework Proposal
Author’s view on the status
Implications to TGh work
Agenda items for the St.Louis meeting
Mika Kasslin, Nokia
Mika Kasslin, Nokia

3. February 2002
doc.: IEEE /133r0
February 2002
TGh related groups
The Harmonised Standard (HS) group had four meetings
Agenda in BRAN27d033r1
Closing report BRAN27d066
The HiperLAN (HL) Spectrum Group had five meetings
Agenda in BRAN27d043
Tentative meeting report in BRAN27d097
Mika Kasslin, Nokia
Mika Kasslin, Nokia

4. The topics of BRAN#27 1) Harmonised Standard 2) DFS Framework Proposal
February 2002
doc.: IEEE /133r0
February 2002
The topics of BRAN#27
1) Harmonised Standard
Review of the draft HS v0_h
”Maximum of minimum” power requirement (TPC)
2) DFS Framework Proposal
IEEE 802 proposal as a liaison
RLAN DFS framework proposal drafting
Mika Kasslin, Nokia
Mika Kasslin, Nokia

5. February 2002
doc.: IEEE /133r0
February 2002
1) Harmonised Standard
The only topic was the one discussed also in the Dallas meeting
TPC related ”Minimum output power” requirement
Both the phrase and the definition in v0_h misleading and will be rephrased
A proposal in revised draft v0_i, BRAN27d074
No changes to the requirement itself
6 dB still working assumption
Timeline of the HS approval approved
Annex in the closing report (BRAN27d066)
Mika Kasslin, Nokia
Mika Kasslin, Nokia

6. 2) DFS Framework The main topic in the Spectrum Group
February 2002
doc.: IEEE /133r0
February 2002
2) DFS Framework
The main topic in the Spectrum Group
The IEEE 802 proposal was presented and discussed extensively
The more advanced DFS method proposed was well-received
Ran out of time in preparing a proposal of our own
No real conclusions, a very draft working document (BRAN27d072, Draft LS to JPT5G v3)
The drafting group will continue creating a RLAN proposal to JPT5G for their meeting in March 25-27
Teleconferences every Tuesday
Mika Kasslin, Nokia
Mika Kasslin, Nokia

7. 2) DFS Framework Author’s view on the status:
February 2002
doc.: IEEE /133r0
February 2002
2) DFS Framework
Author’s view on the status:
RLAN community has a common goal
Requirements in the JPT5G proposal far too tight
The framework has to provide flexibility in implementation
The RLAN framework proposal will have
just basic requirements, and
few examples of mechanisms which can be used in DFS implementation
silent periods for radar measurements
radar detection during normal operation
etc.
should also have some simulation results on radar detection performance
Mika Kasslin, Nokia
Mika Kasslin, Nokia

8. 2) DFS Framework Reminder
February 2002
doc.: IEEE /133r0
February 2002
2) DFS Framework
Reminder
The proposal will be sent to JPT5G, which is preparing European views on the agenda item 1.5 of WRC-2003
Possibly and hopefully helps in getting global spectrum allocation for 5 GHz RLANs
Separate from the HS work done in BRAN
HS will go through a 60-day vote in which national standards organizations are voting
JPT5G ”not interested” on the HS
Mika Kasslin, Nokia
Mika Kasslin, Nokia

9. Implications to TGh? How to proceed?
February 2002
doc.: IEEE /133r0
Implications to TGh? How to proceed?
February 2002
Since
DFS Framework is beyond the scope of our task, which is to develop a DFS mechanism that provides for radar detection
Basic requirements are clear enough
Methods to silence and vacate channel
Methods to measure and assess channel conditions
TGh should not standardize DFS algorithm
TGh should
Continue with its task, which is to standardize DFS and TPC mechanisms and capabilities, bearing all the time in mind
flexibility needed for possible changes in requirement details
”good engineering”
Mika Kasslin, Nokia
Mika Kasslin, Nokia

10. St.Louis agenda items Joint meeting with R-Reg (1.5 h)
February 2002
doc.: IEEE /133r0
February 2002
St.Louis agenda items
Joint meeting with R-Reg (1.5 h)
Matters arising from the DFS framework
TPC review (3.5 h)
Confirm results of the Dallas meeting
Possible new contributions
DFS review (20 h)
Frame descriptions
DFS procedure description
=> New draft to WG LB
Mika Kasslin, Nokia
Mika Kasslin, Nokia

11. FYI: How to download BRAN documents?
February 2002
doc.: IEEE /133r0
February 2002
FYI: How to download BRAN documents?
All the meeting documents can be found in address
Enter IEEE members only site Username/Password, when requested
BRAN#27 documents are in BRAN27 directory
Mika Kasslin, Nokia
Mika Kasslin, Nokia