1. Extended Channel Switch Announcements
Month Year
July 2006
Sept 2006
Extended Channel Switch Announcements
Date:
Authors:
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Jokela, Qi, Thomson
Jokela et al

2. Month Year
July 2006
Sept 2006
Abstract
This presentation outlines the enhancements related to channel switch announcements as defined in normative text document IEEE /1432r0
The enhancements are related to TGy operation and control of unregistered stations
The text is aligned with P REVma/D8.0 and P802.11y-D0.01.
Jokela, Qi, Thomson
Jokela et al

3. Month Year
July 2006
Sept 2006
Problem Statement
Existing Channel Switch Announcement (CSA) only provided for a by h
TGy has three problems:
Need a mechanism to provide CSA for ALL regulatory classes 
Need a mechanism to enable channel switching across regulatory classes
Need a mechanism to exchange supported regulatory classes
This proposal solves these problems 
Jokela, Qi, Thomson
Jokela et al

4. Overview CSA communicated to STA via 3 mechanisms:
Month Year
July 2006
Sept 2006
Overview
CSA communicated to STA via 3 mechanisms:
Beacon
Probe Response
Action Frame
802.11h defined CSA IE
New solution defines Extended CSA IE
802.11h defined CSA Action Frame
New solution defines Extended CSA Action Frame
Jokela, Qi, Thomson
Jokela et al

5. Extended CSA Information Element
Month Year
July 2006
Sept 2006
Extended CSA Information Element
New Regulatory Class field identifies regulatory class being switched to
Other fields same as h CSA
Jokela, Qi, Thomson
Jokela et al

6. Extended CSA Action Frame
Sept 2006
Extended CSA Action Frame
Action Frame details
Jokela, Qi, Thomson

7. Sept 2006
Operational Behavior
Extended CSA should be used for all TGy compliant STA channel switching
Optionally, h CSA may be used whenever switching channels within the same regulatory class
Protects backward compatibility in multi-band products
Modifications to normative text to allow use for all regulatory classes
Jokela, Qi, Thomson

8. Exchanging Regulatory Class Information
Sept 2006
Exchanging Regulatory Class Information AP
Non-AP STA
New Supported Regulatory Classes IE
Contains list of supported regulatory classes
Messages using new IE
Association Request/Response
Reassociation Request/Response
Provides mechanism for AP and STA to exchange supported regulatory class information
Association Request +
Supported Regulatory Classes IE
Association Response +
Supported Regulatory Classes IE
Reassociation Request +
Supported Regulatory Classes IE
Reassociation Response +
Supported Regulatory Classes IE
Jokela, Qi, Thomson

9. Sept 2006
Questions/Feedback
Jokela, Qi, Thomson

10. Month Year
July 2006
Sept 2006
Motion
Move to include normative text in document y-extended-csa into the TGy draft.
Mover:
Seconder:
Results:
Jokela, Qi, Thomson
Jokela et al