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WAVE without beacons Date: 2007-05-14 Authors: May 2007 Month Year
doc.: IEEE yy/xxxxr0 May 2007 WAVE without beacons Date: Authors: Notice: This document has been prepared to assist IEEE 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 grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures < ieee802.org/guides/bylaws/sb-bylaws.pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE Working Group. If you have questions, contact the IEEE Patent Committee Administrator at R. Roy / SRA
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Month Year doc.: IEEE yy/xxxxr0 May 2007 Abstract This presentation contains a proposal for a new approach to WAVE that does not require changing or using beacons. R. Roy / SRA
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Design Principles We are designing a communication system for WAVE
Month Year doc.: IEEE yy/xxxxr0 May 2007 Design Principles We are designing a communication system for WAVE In WAVE environments, there is insufficient time for the standard BSS establishment process – WAVE requires an immediate communications establishment that is not supported by traditional beaconing, authentication and association mechanisms While ITS systems based on WAVE are not expected to use traditional beacons, there is no reason to obviate the standard BSS/IBSS features as they may prove useful. Facilities for higher layer synchronization must be included to provide maximum flexibility in PHY channelization configurations for supporting multiple regulatory domains R. Roy / SRA
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Basic Approach Dictated by Principles
Month Year doc.: IEEE yy/xxxxr0 May 2007 Basic Approach Dictated by Principles Leave current beaconing and joining mechanisms untouched - remove any and all mention of WBSSs, etc. and limit WAVE changes to requiring data communications in the absence of beaconing, authentication and association. Add two new frames “arbitrarily” named: WAVE data frame (Type: 11 Subtype: 0000) WAVE management frame (Type: 11 Subtype 0001) WAVE management frames that include a timestamp will have the same requirement on the timestamp as the standard frames that are used for synchronization. MAC header is the same as for current management frames Allows inclusion of standard information elements WSI can be moved to a data frame (higher layer frame) WSI is optional in a management frame STAs for which dot11WAVEServicesImplemented is true will process both types of frames. R. Roy / SRA
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Basic Approach Dictated by Principles
Month Year doc.: IEEE yy/xxxxr0 May 2007 Basic Approach Dictated by Principles WAVE Management frame allows inclusion of existing information elements that support operation in multiple regulatory domains Need to harmonize with CALM TC204 Increase the number of regulatory classes to include various possible (frequency) channelization schemes Details to be worked out R. Roy / SRA
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Basic Approach Dictated by Principles
Month Year doc.: IEEE yy/xxxxr0 May 2007 Basic Approach Dictated by Principles Regulatory Class Channel Starting Frequency (GHz) BW (MHz) Channel set Transmit Power limit (mW) Emissions Limits set Behavior <ANA> 5.000 40 174 – 181 30 173 – 182 20 172 – 183 10 xxx-255 Reserved R. Roy / SRA
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