March 2015 SG CUB Opening Report Date: 2015-03-10 Authors: Notice: This document has been prepared to assist IEEE 802.19. 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 grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.19. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures <http:// ieee802.org/guides/bylaws/sb-bylaws.pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the TAG of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair <shellhammer@ieee.org> as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802.19 TAG. If you have questions, contact the IEEE Patent Committee Administrator at <patcom@ieee.org>. Hyunduk Kang, ETRI Steve Shellhammer, Qualcomm

March 2015 Backgrounds 802.19 WG formed an interest group on coexistence in unlicensed bands at the March 2014 plenary meeting 19-14/0032r0: March 2014 WG Minutes 7 conference calls and 3 face-to-face meetings held from March to November 2014 802.19 WG formed a study group on coexistence in unlicensed bands at the November 2014 plenary meeting 2 teleconference call had held up to now The January 2015 plenary meeting was the second face-to-face meeting Hyunduk Kang, ETRI

Topics discussed through IG March 2015 Topics discussed through IG Interference discovery (a.k.a., neighbor discovery) Connection establishment among neighbors Information needed to be exchanged among neighbors Fairness among neighbors Qualcomm’s vision on LTE-U technology LTE-U Coexistence Mechanisms Impact of LTE in Unlicensed Spectrum on Wi-Fi Status of ISM Bands LTE-U activities Coexistence Metric Fair spectrum sharing in unlicensed spectrum Update on UNII over 5GHz band in U.S.A. Coexistence between LTE-U and Wi-Fi Hyunduk Kang, ETRI

Coexistence in Unlicensed frequency Bands (CUB) Study Group March 2015 Coexistence in Unlicensed frequency Bands (CUB) Study Group Study items Coexistence scenario and use cases To define necessary information to be exchanged between different systems to mitigate coexistence problems How to exchange messages among entities Methods for improving coexistence among wireless dissimilar systems in unlicensed bands To demonstrate potential coexistence improvements from shared information Other issues related to enhance coexistence in unlicensed bands Hyunduk Kang, ETRI

Coexistence in Unlicensed frequency Bands (CUB) Study Group March 2015 Coexistence in Unlicensed frequency Bands (CUB) Study Group Target unlicensed frequency bands Sub 6GHz Target system 802 system Non 802 system PAR and CSD creation IEEE press release on CUB SG was published on 20th January, 2015 http://standards.ieee.org/news/2015/ieee_802_19_studygroup.html Hyunduk Kang, ETRI

Tentative Timeline January 2015 Interim March 2015 Plenary Contributions on study items March 2015 Plenary Draft of PAR and CSD (Title, Scope, and Purpose) May 2015 Interim PAR and CSD submission to WG June 2015 PAR and CSD submission to EC (30 Days before July meeting) July 2015 Plenary PAR and CSD review by other WGs Hyunduk Kang, ETRI

Action items during this week March 2015 Action items during this week To explore issues on study items Considerations on Difficulty of Possible Coexistence Scenarios in Studying Solutions New Federal Spectrum Access System - US 3.5GHz bands Discussion of LAA LBT Categories Discussion on PAR direction Discussion on PAR and CSD Other issues related to coexistence Hyunduk Kang, ETRI

March 2015 Schedule for the week Hyunduk Kang, ETRI