1. Discussion on SG Formation
September 2014
Discussion on SG Formation
Date:
Authors:
Notice: This document has been prepared to assist IEEE 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
Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures < 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 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 TAG. If you have questions, contact the IEEE Patent Committee Administrator at
Hyunduk Kang, ETRI
Steve Shellhammer, Qualcomm

2. Coexistence Issues discussed
September 2014
Coexistence Issues discussed
Standards targeted for unlicensed frequency bands
802.11
802.15
LTE-U
Etc.
Coexistence scenario
Performance metric to measure coexistence
E.g., Fairness: how to measure it?
Target frequency bands? E.g., 2.4GHz, 5GHz
Coexistence problem due to difference access technologies
Asynchronous vs. scheduled transmission
Hyunduk Kang, ETRI

3. Coexistence Issues discussed
September 2014
Coexistence Issues discussed
Operating channel bandwidth
Carrier aggregation, channel bonding
Co-located coexistence
E.g., LTE-U + Wi-Fi +Bluetooth
Possible solutions
Listen-before-talk
TDMA with coordination
Etc.
Coordination b/w Wi-Fi and LTE-U
Necessary information to be exchanged between different systems to mitigate coexistence problems
Radio environment information: via wired vs. wireless
Hyunduk Kang, ETRI

4. General Direction of Study Group
September 2014
General Direction of Study Group
Intention
To study potential coexistence problems in unlicensed frequency bands considering
Difference access technologies: asynchronous vs. scheduled transmission
Various operating channel bandwidth: Carrier aggregation, channel bonding
To develop methods to solve coexistence problems among dissimilar systems
Work items
PAR development
Use cases
Scope and purpose
5C Analysis
Hyunduk Kang, ETRI

5. Suggested Focus of Study Group
September 2014
Suggested Focus of Study Group
Title
Coexistence Methods for Wireless Dissimilar Systems over Unlicensed Bands
Target frequency bands
Sub 6GHz
Target system
802 system
Non 802 system
Hyunduk Kang, ETRI

6. Suggested Focus of Study Group
September 2014
Suggested Focus of Study Group
Suggested area of standardization
Coexistence scenario and use cases
Coexistence system architecture
Entity and interface
To define necessary information to be exchanged between different systems to mitigate coexistence problems
How to exchange messages among entities
Technologies suitable for solving coexistence problems among different radio access technologies (RATs)
Other issues related to coexistence
Hyunduk Kang, ETRI

7. September 2014
Straw Poll
Do you support this direction, provide in slide 5 and 6, as part of the work of a Study Group?
Yes:
No:
Abstain:
Hyunduk Kang, ETRI