1. Activities of Wireless LAN Systems R&D Group in ARIB Kohei SATOH Managing Director, ARIB

2. Highlight of Current Activities (1)- Background - • In Japan, the rapid spread of smart phones is causing cellular network congestion. One solution is traffic offload by WLAN. • However, problems caused by interference between WLANs due to the spread of WLAN is becoming apparent in public areas such as train stations, and dense residential areas such as apartments. • Activities to develop solutions to the problems of WLAN and to spread the solutions widely by standardization are desired.

3. Highlight of Current Activities (2)- WLAN Systems R&D Group - • To research and development for the advancement and improvement of the reliability of WLAN systems, to carry out standardization activities, and to make collaboration with other standards bodies and organizations. • Date of establishment:April 1st in 2013 • Participants: More than 20 companies (members of ARIB: WLAN manufacturers, System integrators, Telecom carriers, etc.)

4. Highlight of Current Activities (3)- Organization of ARIB - Members General Assembly Auditors Board of Directors Chairman Secretariat Standard Assembly Technical Committee Standard Council Study Group R&D Group Wireless LAN Systems Group Management Strategy Committee Advanced Wireless Communications Study Committee Management Committee Electromagnetic Environment Committee Promotion Strategy Committee

5. Highlight of Current Activities (4)- Main topics - • Interference mitigation techniques • User experience improvement techniques • Update of radio equipment conformity certification program

6. Strategic Direction- Road map - Fiscal Year 2013 FY 2014 FY 2015 FY 2016 FY 2017 • Interference mitigation techniques* Testbed Field measurement Development of evaluation model Technical discussion Technical evaluation Definition of specification ARIB standardization ARIB standardization Problem analysis Technical discussion Technical evaluation Trial test (short term problems) Proposal for Wi-Fi certification • User experience improvement techniques* Field measurement Development of comparison criteria ARIB standardization Problem analysis Technical discussion Technical evaluation Trial test （short term problems） Proposal for Wi-Fi certification • Update of radio equipment conformity certification program Investigation of current situation Problem analysis Discussion at Information and communications council △ Regulation revision * Make cooperation with standardization bodies such as High Efficiency WLAN SG in IEEE 802.11 WG