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Comments on AV transmission Recommended Practice

Comments on AV transmission Recommended Practice. Yasuo HARADA , Lim Wei Lih, Shinichiro OHMI, Tan Pek Yew (Matsushita Electric Ind). Requirements for AV Transmission. Bandwidth requirement HD:24mbps x 1ch (unicast) SD: 7mbps x 3ch (unicast) Guarantee of quality for AV stream

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Comments on AV transmission Recommended Practice

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  1. Comments on AV transmission Recommended Practice Yasuo HARADA , Lim Wei Lih, Shinichiro OHMI, Tan Pek Yew (Matsushita Electric Ind) Lim Wei Lih, Matsushita Electric Ind.

  2. Requirements for AV Transmission • Bandwidth requirement • HD:24mbps x 1ch (unicast) • SD: 7mbps x 3ch (unicast) • Guarantee of quality for AV stream • AV streams for interactive applications require very short delay • Enable AV delivery to be registered with HC • Longer term uninterrupted bandwidth allocation for AV delivery • To avoid denial of service to other high priority non AV data Lim Wei Lih, Matsushita Electric Ind.

  3. Broadband STB Home Gateway 802.11e 802.11e 802.11e Home Server Personal Computer Application Example BS/CS/DTV HDTV 100Base-T Broad Band Network 100Base-T 5G Network FTTH/ADSL/CATV Contents Storage 100Base-T Lim Wei Lih, Matsushita Electric Ind.

  4. Protocol Stack IP System 1394 System LAN Data AV/ Command AV Data AV/ Command AV Data (RTP etc) TCP/UDP IEC61883 IP AV PAL IEEE 802.2 LLC IEEE 802.11 MAC IEEE 802.11 PHY Lim Wei Lih, Matsushita Electric Ind.

  5. Beacon Beacon Allocation Structure Repeat k times Repeat j times 0..1 time Repeat i times 0..1 time 0..1 time QoS Request Registration QoS TXOP Allocation TXOP Allocation PIFS PIFS PIFS PIFS TBTT TBTT DIFS Phase 2 : TXOP w/o Registration Phase 1 : TXOP with Registration Contention Base Contention Free Period Lim Wei Lih, Matsushita Electric Ind.

  6. Realization Example of AV transmission 24Mbps over PHY 36Mbps • Nominal MSDU size: 1402 bytes • IP header + UDP header + MPEG2-TS • Polling Interval: 7 TU • Maximum Burst: 18 Data Packets • Delay Bound: 70 TU • No FEC • Inactivity Interval: 1000 (5 sec) Lim Wei Lih, Matsushita Electric Ind.

  7. Comments on Recommended Practice Doc for AVSG • Delay-ACK delivery rules • Registration Signaling mechanism for AV transmission • Sender initiative (to achieve diff serv) • Direct ESTA-To-ESTA Transmission • Realization of 24Mbps AV transmission over PHY 36Mbps Lim Wei Lih, Matsushita Electric Ind.

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