SAMSUNG Partial MAC Proposal Summary November 2004 November 2004 SAMSUNG Partial MAC Proposal Summary Jon Rosdahl, KyungHun Jang, DJ Lee, Youngsoo Kim, Jin-Bong Chang, Taekwon Kim, Changyeul Kwon, Chil-Youl Yang Samsung November 15th, 2004 Jon Rosdahl, Samsung; et al Jon Rosdahl, Samsung; et al

Summary Two-level frame aggregation MAC header compression November 2004 November 2004 Summary Two-level frame aggregation Supports multiple destinations and multiple rates in a PPDU Nokia, Philips and Samsung merged this as MMRA MAC header compression Allows more efficient medium usage when multiple MPDUs are aggregated in a PSDU A service period for aggregation exchanges Initiated by MP frame and is combined with dynamic TDM and CSMA/CA without collision and unnecessary backoff delay Smart Block ACK Uses a two-level bitmap with a variable size instead of a fixed 128 octets as in the 802.11e Block ACK Three error recovery mechanisms Used with the two-level frame aggregation mechanism Operating modes For coexistence between legacy STAs and HT STAs Jon Rosdahl, Samsung; et al Jon Rosdahl, Samsung; et al