Mar. 2018 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Draft PAR & CSD Comment Responses] Date Submitted: [8 March, 2018] Source: [Joerg ROBERT] Company [Friedrich-Alexander University Erlangen-Nuernberg] Address [Am Wolfsmantel 33, 91058 Erlangen, Germany] Voice:[+49 9131 8525373], FAX: [+49 9131 8525102], E-Mail:[joerg.robert@fau.de] Re: [] Abstract: [Comment resolution to comments on 802.15.4w PAR & CSD] Purpose: [Information to 802 EC] 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. Joerg ROBERT, FAU Erlangen-Nuernberg

Draft 802.15.4w PAR & CSD Comment Responses Mar. 2018 Draft 802.15.4w PAR & CSD Comment Responses Joerg ROBERT (FAU Erlangen-Nuernberg), chair SG 802.15.4 Joerg Robert, FAU Erlangen-Nuernberg

In response to the comments from James Gilb Mar. 2018 In response to the comments from James Gilb Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.2b Comment: Add the anticipated range that this new PHY will provide. Delete "as needed“ Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 Comment: The text says that high link margin is required for interferers, but doesn't put a value on "high". What is high and why don't current PHYs in 802.15.4 meet it? Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 cont’d Comment: 140 dBm sensitivity implies -174 dBm/Hz + 10 dB SNR and NF gives -164 dBm/Hz, leaving only 24 dB for BW, or 251 Hz. That would likely give < 1 kb/s, which doesn't work for IoT. From where does this -140 dBm come? Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 cont’d Comment: The end result is the inability to guarantee the required transmission reliability in such scenarios." Wireless networks can never "guarantee the required transmission reliability" and this project won't change that fact. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 cont’d Comment: "receiver sensitivities of -140dBm while delivering multiyear battery life." 802.15.4 already provides multi-year battery life with the existing PHYs. There does not appear to be anything proposed with the amendment that would improve battery life. In fact, by spreading the information over a longer period of time, the receiver would be on longer, using more power, not less. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

CSD 1.3 Comment: Quantify "high immunity to interference". Mar. 2018 CSD 1.3 Comment: Quantify "high immunity to interference". Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 CSD 1.2.5 Comment: None of the reasons given address why this specific, new addition will be similar in cost to existing 802.15.4 devices (which vary widely in cost, depending on which version of 802.15.4 you implement). Are there LECIM devices fielded? Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 CSD 1.2.5 cont’d Comment: The answer for c) does not address item c), which has to do with installation costs, no manufacturing methods. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

In response to the comments from IEEE 802.3 Mar. 2018 In response to the comments from IEEE 802.3 Joerg Robert, FAU Erlangen-Nuernberg

PAR 5.3 Comment: Question is not answered, please do so. Mar. 2018 PAR 5.3 Comment: Question is not answered, please do so. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 6.1b Comment: Not sure who recommended review but if so, the RAC Chair is unaware of a recommendation from the RAC or from editorial staff (typically occurring because of content found in MEC review). RAC review can also be requested by the WG/TG later without a PAR modification if "not anticipated" registry related content appears in the draft. Please refer to the PAR form instructions (copied at end of slide deck) for when a Yes answer is appropriate and consider if the answer should be changed to No. (The RAC has reviewed IEEE Std 802.15.4.) Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 CSD 1.2.5c Comment: The answer about manufacturing costs is non-responsive to the question about installation costs. Please provide a responsive answer. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 CSD 1.2.5d Comment: Change IEEE Std. 802.15.4 to IEEE Std 802.15.4 (remove the dot after Std). Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

In response to the comments from IEEE 802.11 Mar. 2018 In response to the comments from IEEE 802.11 Joerg Robert, FAU Erlangen-Nuernberg

PAR 2.1 Comment: Use of “Low Power” should include a range or limit. Mar. 2018 PAR 2.1 Comment: Use of “Low Power” should include a range or limit. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

PAR 2.1 cont’d Comment: expand “LEICM” Text in PAR/CSD: Mar. 2018 PAR 2.1 cont’d Comment: expand “LEICM” Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

PAR 5.2b Comment: editorial remove extra period “Std.” should be “Std” Mar. 2018 PAR 5.2b Comment: editorial remove extra period “Std.” should be “Std” Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

PAR 5.2b cont’d Comment: correct “<30kBit/s” should “< 30 kb/s” Mar. 2018 PAR 5.2b cont’d Comment: correct “<30kBit/s” should “< 30 kb/s” Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

PAR 5.2b cont’d Comment: expand “FSK” Text in PAR/CSD: Mar. 2018 PAR 5.2b cont’d Comment: expand “FSK” Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.2b cont’d Comment: delete “Furthermore, it defines lower code rates of the FEC in addition to the K=7 R=1/2 convolutional code. Modifications to the Medium Access Control (MAC) layer, needed to support this PHY extension, are defined as needed.” or at least reword to be definitive and define “lower code rates” and the reword to make meaning of “K=7 R=1/2 convolutional code” clear. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.2b Comment: define the expected range of “Wide Area Network”. i.e. what are you expecting to reach. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 Comment: What is “very high link margin” vs “high link margin”? rewording is expected. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 cont’d Comment: Please include definition of the expected range and power that is being included in the specification. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.5 cont’d Comment: “guarantee” reword this sentence as you will not be able to “guarantee” in general. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

Mar. 2018 PAR 5.6 Comment: delete “and similar organtizations” – not necessary (and misspelled). Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg

PAR 8.1 Comment: Add full name of the cited “IEEE Std 802.11h. Mar. 2018 PAR 8.1 Comment: Add full name of the cited “IEEE Std 802.11h. Text in PAR/CSD: Remarks / Answers to the Comments: Joerg Robert, FAU Erlangen-Nuernberg