September 2018 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Discussion on MAC functionalities Date.

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September 2018 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: Discussion on MAC functionalities Date Submitted: March 6, 2018 Source: John Li Company: Huawei Address: No.156 Beiqing road, Beijing Voice: +86 158 0153 9749 e-mail: john.liqiang@hisilicon.com Re: Abstract: This document summarize the MAC functionalities in current draft and assist discussion on future MAC development Purpose: Assist discussion on MAC functionalities 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. John Li (Huawei)

Current MAC functionalities September 2018 Current MAC functionalities Superframe structure Slotted or not CSMA Beacon enabled OWPAN With superframe structure BP + CAP + CFP Slotted Slotted CSMA/CA; Polling Non-Beacon enabled OWPAN No superframe structure No slot unslotted CSMA/CA For discussion: Option 1: only beacon enabled OWPAN is kept Option 2: only non-beacon enabled OWPAN is kept Option 3: both beacon enabled and non beacon enabled OWPAN are kept John Li (Huawei)

Superframe structure For discussion Is inactive part necessary? September 2018 Superframe structure For discussion Is inactive part necessary? John Li (Huawei)

Current MAC functionalities September 2018 Current MAC functionalities CAP (Contention Access Period) Slotted CSMA/CA; RTS / CTS Polling For discussion Option 1: CSMA/CA only Option 2: Polling only Option 3: Polling is integrated into CSMA/CA (if coordinator gained access, it will occupy the channel and use polling for the remaining time) John Li (Huawei)

Current MAC functionalities September 2018 Current MAC functionalities CFP (optional) GTS Polling? For discussion Should CFP be made mandatory? Is polling part of CFP? John Li (Huawei)