Broadcast and Multicast Enhancements Month Year July 2006 July 2006 Broadcast and Multicast Enhancements Authors: Date:2006-07-18 Notice: This document has been prepared to assist IEEE 802.11. 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 802.11. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures <http:// 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 <stuart.kerry@philips.com> 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 802.11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at <patcom@ieee.org>. Jokela et al Jokela et al

Month Year July 2006 July 2006 Abstract This document outlines the enhancements related to broadcast and multicast traffic (Req. #2120) as defined in normative text document IEEE 802.11-06/0947r0 Specifically the intention is to improve terminals power efficiency (Req. #2010). Furthermore it contains aspects related to advertisements (Req. #1300). Jokela et al Jokela et al

Agenda Guiding Principles Overview Messages Other Changes July 2006 Month Year July 2006 July 2006 Agenda Guiding Principles Overview Messages Other Changes Jokela et al Jokela et al

Month Year July 2006 July 2006 Guiding Principles Proposal must be backward compatible with legacy power save for multicast/broadcast traffic.  Proposal must not require replication of broadcast or multicast frames Proposal must exhibit "good" network behavior Proposal must ensure one client cannot change another’s behavior   Jokela et al Jokela et al

Overview Goal Flexible Broadcast Multicast Service (FBMS) Month Year July 2006 July 2006 Overview Goal Increase the period of time a STA may be in power save state Flexible Broadcast Multicast Service (FBMS) A client can request a delivery interval longer than the normal DTIM interval for selected traffic A client may not have to wake up at every DTIM interval in order to receive the selected broadcast and multicast frames. Backward compatible with existing 802.11 method for delivering these streams Proxy ARP Service An AP can advertise when it provides Proxy ARP on behalf of the STA Jokela et al Jokela et al

Reassociation Request + Reassociation Response + Month Year July 2006 July 2006 FBMS Messages AP Non-AP STA New Wireless Network Management action frames FBMS Request FBMS Response Beacon AID 0 Information Element Reassociation Request FBMS Request IE Reassociation Response FBMS Response IE Beacon + AID 0 IE FBMS Request FBMS Response Reassociation Request + FBMS Request IE Reassociation Response + FBMS Response IE Jokela et al Jokela et al

FBMS Request STA sends request to AP with one or more FBMS elements July 2006 FBMS Request STA sends request to AP with one or more FBMS elements Request is declarative A FBMS Element contains TCLAS identifies L2 or L3 traffic Delivery Interval is the number of DTIM intervals the traffic should be transmitted at Jokela et al

July 2006 FBMS Response For each requested FBMS Element, response contains FBMS Status Element Each FBMS Status Element contains FBMSID: Identifies the stream associated with the FBMS element at the AP Jokela et al

FBMS Response - Status AP replies with Accept, Deny or Override Month Year July 2006 July 2006 FBMS Response - Status AP replies with Accept, Deny or Override For deny or override, Reason Code provides more details Field value Description 1 Denied due to malformed request or ambiguous classifier. 2 Denied due to lack of resources on AP. 3 Denied due to requested classifier(s) matching 2 or more existing streams on different intervals 4 Denied. By policy, requested stream is not permitted to participate in FBMS 5 Overridden due to existing stream with different delivery interval 6 Overridden due to policy limits on AP. 7 Overriden due to AP changed the delivery interval. 8-255 Reserved Jokela et al Jokela et al

Advertisements Wireless Network Management Capability Element Month Year July 2006 July 2006 Advertisements Wireless Network Management Capability Element FBMS Advertises FBMS supported Proxy ARP Service Advertises Proxy ARP service supported on behalf of the STA Jokela et al Jokela et al

AID 0 Info Element Contained in beacons July 2006 AID 0 Info Element Contained in beacons For each FBMS stream with traffic queued Counters count down modulo interval Interval 4 Counter values: 3 2 1 0 3 2 1 0 3 2 1 0 Stream transmitted when counter hits 0 Jokela et al

July 2006 Questions/Feedback Jokela et al

Month Year July 2006 July 2006 Motion Move to include normative text in document 11-06-0947-00-000v-bc-and-mc-enhancements into the TGv draft. Mover: Seconder: Results: Jokela et al Jokela et al