Transcript 19-05-0006-01-0000-What-is-a-CA-doc.ppt

March 2005
doc.: IEEE 802.19-05/0006r1
What is a CA document?
Date: 2005-03-14
Authors:
Name
Company
Address
Phone
email
Steve
Shellhammer
Intel
Corporation
13290 Evening
Creek Drive
San Diego CA
(858) 3914570
[email protected]
Notice: This document has been prepared to assist IEEE 802.19. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in
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Submission
Slide 1
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
What is a CA Document?
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New 802 P&P on wireless coexistence
Clarifications of the rules
Purpose of a CA document
What to include in a CA document
Support from 802.19 TAG
Submission
Slide 2
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
New 802 P&P on Wireless Coexistence
• You can get the 802 policies and procedures
(P&P) on the IEEE 802 web site
• http://grouper.ieee.org/groups/802/devdocs.html
• P&P Changes
– A modification to the procedure for the five criteria
– An additional procedure
Submission
Slide 3
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
New 802 P&P on Wireless Coexistence
Addition to Technical Feasibility criteria within 5C
d) Coexistence of 802 wireless standards specifying devices
for unlicensed operation
The working group proposing a wireless project is required
to demonstrate Coexistence through the preparation of a
Coexistence Assurance (CA) document unless it is not
applicable.
􀂆 Working Group will create a CA document as part of the
balloting process.
􀂆 Working Group will not create a CA document
Reason it is not applicable:
___________________________________
Submission
Slide 4
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
New 802 P&P on Wireless Coexistence
22. Procedure for Coexistence Assurance
If indicated in the five criteria, the wireless working group
shall produce a coexistence assurance (CA) document in the
process of preparing for working group letter ballot and
sponsor ballot. The CA document shall accompany the draft
on all wireless working group letter ballots.
The CA document shall address coexistence with all relevant
approved 802 wireless standards specifying devices for
unlicensed operation. The working group should consider
other specifications in their identified target band(s) in the CA
document.
Submission
Slide 5
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
New 802 P&P on Wireless Coexistence
22. Procedure for Coexistence Assurance (cont.)
The 802.19 TAG shall have one vote in working group letter
ballots that include CA documents. As part of their ballot
comments, the 802.19 TAG will verify the CA methodology
was applied appropriately and reported correctly.
The ballot group makes the determination on whether the
coexistence necessary for the standard or amendment has
been met if the ballot passes.
A representative of the 802.19 TAG should vote in all
wireless sponsor ballots that are in the scope of the 802.19
coexistence TAG.
Submission
Slide 6
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Clarification of the Rules
• A CA document is not required for a standard
specifying licensed operation
• The CA document is not required to consider
coexistence with wireless systems outside of 802
(e.g. cordless phones). However, the task group
is encouraged to consider coexistence with
wireless systems outside of 802
• The 802.19 TAG cannot veto the ballot. The
TAG only gets one vote
• The TAG will agree as a group on how to vote
and what comments to make on the draft
Submission
Slide 7
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Clarification of the Rules
• The voters in the WG letter ballot pool do not
vote and comment on the CA document
separately.
– They vote on the draft.
– Voters should consider the information in the CA
document when voting on the draft
• The following are valid comments on the draft
– The CA document is incomplete
– The CA document is inaccurate
– The CA document has not sufficiently demonstrated
that the proposed standard coexists with current
standards
– Other
Submission
Slide 8
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Clarification of the Rules
• There is no threshold of acceptable coexistence
specified in the 802 P&P
– The TG should select several metrics to evaluate the
level of coexistence
– The TG should choose to specify a threshold
(depending upon application)
– The voter should decide if the threshold selected by the
TG is appropriate and whether it has been met, when
voting
• Thresholds of acceptable levels of coexistence
depend upon the applications.
Submission
Slide 9
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Clarification of the Rules
• The CA document shall consider:
– The effect of the proposed standard on current approved
relevant 802 standards
– The effect of current approved relevant 802 standards
on the proposed standard
• The CA document should consider:
– The effect of the proposed standard on other wireless
specifications
– The effect of other wireless specifications on the
proposed standard
Submission
Slide 10
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Clarification of the Rules
• The CA document is not required to consider,
but is encouraged to consider:
– The effect of the proposed standard on draft 802
standards
– The effect of draft 802 standards on the proposed
standard
– The effect of unintentional emitters on the proposed
standard
Submission
Slide 11
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Clarification of the Rules
• What defines a “relevant” wireless
standard?
– Any standard that could have potential
interference
– Standards in the same frequency band
– Standards in adjacent frequency bands
• The CA document should explain which
standards were considered relevant and
why
Submission
Slide 12
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Purpose of the CA document
• The purpose of the CA document it to make
information available to the ballot pool
• The members of the ballot pool are the
technical experts who will determine how to
use this information in their vote
Submission
Slide 13
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
What to include in a CA document
• List the other unlicensed 802 wireless standards
that could have a potential mutual interference
with the proposed standard
• Develop a model for the mutual interference
between the proposed standard and all other
potential mutual interferers
• The model can be broken down into several
components
Submission
Slide 14
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
What to include in a CA document
• CA Model Components
– Description of the usage scenarios for the wireless
network based on each of these standards
– Description of the data traffic on each wireless network
– List of performance metrics for each of the two wireless
networks
– Description of typical geometry of the two wireless
networks
– Descriptions simulation/analysis method used
– Results of simulation/analysis showing the performance
metrics
Submission
Slide 15
Steve Shellhammer, Intel Corporation
March 2005
doc.: IEEE 802.19-05/0006r1
Support from the 802.19 TAG
• Developing a CA methodology document to describe
what is required in a CA document
– First complete draft expected in July (with support from the
wireless working groups)
• Willing to review preliminary CA document before a
ballot and give guidance
• Plan to develop a document listing all 802 wireless
standards with a summary of appropriate technical
specifications, to assist TG in determining which
standards are “relevant”
• Collect all previous CA documents for reference
Submission
Slide 16
Steve Shellhammer, Intel Corporation