November 2018 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [MAC Considerations] Date Submitted: [12 November, 2018] Source: [Frank Leong (NXP Semiconductors), Ayman Naguib (Apple), Seongah Jeong (Samsung), Brima Ibrahim (NXP Semiconductors), Tushar Shah (Apple), Jochen Hammerschmidt (Apple), Thomas Reisinger (Continental), Daniel Knobloch (BMW), Yi Yang (Samsung), Hyunchul Kim (Samsung), Sejong Yoon (Samsung), Jong-Hoon Jang (Samsung), Moon-Seok Kang (Samsung), Jonghyo Lee (Samsung), Aditya V. Padaki (Samsung), Zheda Li (Samsung), Boon Loong Ng (Samsung)] Re: [Input to the Task Group] Abstract: [Presentation, enhancements to 802.15.4 for secure ranging, ranging integrity] Purpose: [] 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. NXP, Apple, Samsung, Continental, BMW

November 2018 MAC Considerations Note: Notation/nomenclature based on 15-18-0286-01-004z-hrp-uwb-srdev-ppdu-text-contribution.docx and 15-18-0335-00-004z-srdev-ppdu-for-enhanced-impulse-radio.pptx NXP, Apple, Samsung, Continental, BMW

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> November 2018 Rationale Secure RF ranging on the PHY layer requires many short pulses per measurement This requirement is fulfilled by the Scrambled Timestamp Sequence (STS) field The revised MAC must support use of the STS → Provide means to perform effective & efficient secure ranging → Allow sufficient flexibility to address multiple use cases NXP, Apple, Samsung, Continental, BMW <author>, <company>

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> November 2018 MAC – Objectives Support SS-TWR in addition to DS-TWR Support unicast, multicast, broadcast Support fixed turn-around time for unicast TWR Support framing structure to allow fixed set of active time-slots, while also allowing flexible ranging update rate and flexible use of the active slots Allow flexibility in the method of STS initialization Allow both scheduled and contention-based ranging NXP, Apple, Samsung, Continental, BMW <author>, <company>