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TGe Consensus Proposal

TGe Consensus Proposal. Amjad Soomro, Javier Del Prado, Saj Shankar, Kirac Challapali Philips. Matthew Sherman AT&T Labs. Bob Meier Cisco. Matthew Shoemake, Sid Schrum Texas Instruments. Katsumi Takaoka, Katsumi Ishi JVC. Isaac Lim, Pek Yew Tan, Yasuo Harada, Panasonic. Authors:.

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TGe Consensus Proposal

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  1. TGe Consensus Proposal Amjad Soomro, Javier Del Prado, Saj Shankar, Kirac Challapali Philips Matthew ShermanAT&T Labs Bob MeierCisco Matthew Shoemake, Sid SchrumTexas Instruments Katsumi Takaoka, Katsumi IshiJVC Isaac Lim, Pek Yew Tan, Yasuo Harada,Panasonic Authors: Menzo WentinkIntersil Morihiko HayashiSony Shinya Fukuoka Pioneer Keith Amann, Luke LudemanSpectralink Srinivash Kandela, John Kowalski, Yoshihiro Ohtani, Shugung Xu Sharp Chris Ware, Lizy Paul Motorola Partho MishraAirgo Date: September 12, 2002 Matthew Sherman, et. al

  2. Context • After 2+ years, insufficient support from 802.11 body to finalize TGe standard • Major reasons for lack of consensus • Bifurcation of market requirements • data networking • voice and audio visual • Deeply held beliefs about how QoS should be in implemented in WLAN • Continuous introduction of new concepts with varying levels of maturity • Constant expansion of 802.11 membership • Further delays in 802.11e standard may result in de-facto QoS standard forming outside IEEE Matthew Sherman, et. al

  3. Consensus Proposal Objectives: • Pragmatic QoS standard that addresses key market segments:- data networking- voice - audio visual • Easily accepted by >75% of the IEEE 802.11 body Matthew Sherman, et. al

  4. Status • Ad-hoc group has reached consensus on • eDCF improvements • HCF polling • Addresses needs of rate-based and time-based polling proposals • Power Save extensions • Normative text drafted for these proposals • WME proposal (derived from Doc 02/592r0) • HCF polling-spec (derived from Doc 02/524temp, original fast-track document) • Power Save spec (Doc 02/562r2) • Closure has not been achieved on all issues Matthew Sherman, et. al

  5. Status (cont.) • What’s in • Improved eDCF • HCF Polling • Power Save extensions • Direct Link Protocol (Optional) • Burst Ack (Optional) • What’s out • FEC • AP Mobility • CC/RR Matthew Sherman, et. al

  6. Improved EDCF • Based on WME • EDCF clarification and simplification • 4 queues mandatory at STA and AP • Rules for setting 802.11 user priorities in MAC frames • User priorities for 802.11 management and control frames • Sequence number generation rules • Textual cleanup • Distributed Admission Control • Automatic Power Save Delivery Matthew Sherman, et. al

  7. HCF Polling • Unified Tspec • Addresses needs of rate-based and time-based • Clarified parameter definitions • Application triggered or autonomous Tspec signaling • Added Schedule element • Allows power management by STAs • Normative HCF scheduler behavior • Improves interoperability & testability • Informative description of packet classification Matthew Sherman, et. al

  8. Power Save Extensions • Automatic power save delivery method • STA and AP negotiate a wake-up period • STA wakes up at negotiated period to receive Beacon • AP may deliver 1 or more MSDUs to a STA, without receiving a PS-Poll • STA goes back to sleep when More Data bit is set to 0 or if it receives a Beacon with the TIM bit set to 0 • STA dynamically transition between active and power-save modes • PS-bit in MAC header used to signal transitions • STA can continue to use legacy PS-Poll method Matthew Sherman, et. al

  9. Documents with Normative Text • 524r1temp Matthew Sherman, et. al

  10. Open Issues • MAC SAP definition to support both prioritized and parameterized QoS traffic • Data SAP: Size of user priority tag (3 or 4 bits) • Control SAP: Extensions to support Tspecs • Security for side-channel traffic • AIFS definition • HCF Polling: Mandatory or Optional at AP? Matthew Sherman, et. al

  11. Next Steps to a Ratified TGe • Period to review and modify draft text • Letter-ballot ->Needs to be discussed Matthew Sherman, et. al

  12. Backup Matthew Sherman, et. al

  13. Motions Adopt changes described in IEEE 802.11 02/YYYrN into next TGe draft Matthew Sherman, et. al

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