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Mid-CRC in Long Beacon

Mid-CRC in Long Beacon. Authors:. Date: 2012-09-17. An example beacon. <<50%. >> 50%. Mid-CRC in long beacon. Beacons with some long IEs can be sent pretty frequently to attract new STAs, indicate buffered data, and control channel access, etc.

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Mid-CRC in Long Beacon

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  1. Mid-CRC in Long Beacon Authors: Date: 2012-09-17 Yong Liu, Marvell, et. al.

  2. Yong Liu, Marvell, et. al.

  3. Yong Liu, Marvell, et. al.

  4. An example beacon <<50% >> 50% Yong Liu, Marvell, et. al.

  5. Mid-CRC in long beacon Beacons with some long IEs can be sent pretty frequently to attract new STAs, indicate buffered data, and control channel access, etc. An associated STA may not be interested in any IEs (esp. when change sequence is up-to-date), or may be interested in only a few IEs The Mid-CRC IE can help a STA stop processing a long beacon earlier and save power Yong Liu, Marvell, et. al.

  6. Mid-CRC design Yong Liu, Marvell, et. al.

  7. Mid-CRC design – cont. • Mid-CRC calculation and End-FCS calculation are separated • Note that Mid-CRC can be shorter than End-FCS • Mid-CRC coverage starts from the end of the last Mid-CRC (if present); End-FCS covers the whole frame • Both Mid-CRC TX and RX are optional • A STA not supporting Mid-CRC transmission need not insert any Mid-CRC IE • A STA not supporting Mid-CRC receiving can decode the whole frame, ignore all Mid-CRCs, and check End-FCS only Yong Liu, Marvell, et. al.

  8. Straw poll / Pre-Motion • Do you support • The Mid-CRC concept as in slide 5; • The Mid-CRC design as in slide 6 and 7 Yong Liu, Marvell, et. al.

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