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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [LB53 Comment r esolution for channel hopping related issues : CID12 , CID 1474 and CID 1172] Date Submitted: [14 September 2010] Source: [Wun-Cheol Jeong] Company [ETRI]

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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

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  1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:[LB53 Comment resolution for channel hopping related issues: CID12 , CID 1474 and CID 1172] Date Submitted: [14 September 2010] Source:[Wun-Cheol Jeong] Company [ETRI] Address [YouseongGuGajeong Dong, Daejeon, Korea] Voice:[+82.42.860.5104], E-Mail:[wjeong@etri.re.kr] Re: [TG4e Comment Resolution] Abstract:[4g related comment resolution issues] Purpose:[Resolve 4g related comment resolutions] Notice: This document has been prepared to assist the IEEE P802.15. 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 acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Wun-Cheol Jeong

  2. CID 12 & CID1474 CID12: The MAC enhancement in current 4e draft is insufficient to support the frequency hopping mechanisms required by the 4g PHYs. It will be very beneficial that the MAC enhancement in 4e can support frequency hopping. (by David Hart) CID1474: 4e should either specify a suitable channel hopping mechanism for 4g or add enough hooks for NHL to perform channel hopping. (by Wei Hong) Resolution: Channel Hopping mechanism: Slotted Channel Hopping: DSME (Beacon enabled), TSCH (Non beacon enabled) Un-slotted Channel Hopping: Hopping managed by NHL (by EB/EBR, see DCN606r0) Slide 2 Wun-Cheol Jeong

  3. Default Hopping Sequence (CID1172) • When ID = 0, (see DCN561r1) • Generate PRBS by x9 + x5 + 1 with seed 255 • Sort PRBS to generate macHoppingSequence • DSME: • CH = macHoppingSequence [(i + channel offset + BSN) % sequence length] • TSCH: • CH = macHoppingSequence [(ASN + channel offset) % sequence length] Slide 3 Wun-Cheol Jeong

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