Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title:Korean Frequency Regulations for LPWA Date Submitted: 13 March, 2017 Source: Tae-Joon Park, Hoyong Kang, Wun-Cheol Jeong Company: ETRI Address: 218 Gajeong-ro, Yuseong-gu, Daejeon, 34129, KOREA Voice: +82-42-860-6902, E-Mail: tjpark@etri.re.kr Re: Abstract: Introduction to Korean Frequency Regulations for future work within IG LWPA. Purpose:Discussion within IEEE 802.15 IG LPWA 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. This work was supported by IITP funded by MSIP (No. R7117-17-0197, LPWA IoT network core technology development). Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.

2. Korean Frequency Regulations for LPWA Tae-Joon Park, Hoyong Kang, Wun-Cheol Jeong ETRI

3. Draft IG LPWA Report Abstract 2 Table of Contents 3 1 Introduction 4 2 Technical Characteristics of Low Power Wide Area Networks 5 3 Potential Use-Cases for Low Power Wide Area Networks 6 4 Frequency Regulation and Channel Models 7 4.1 Frequency Regulation7 4.2 Propagation Models for LPWAN 7 4.3 Number of Active Users 7 4.4 Interference Channel Model 7 5 Performance Evaluation Criteria 8 6 Analysis of Existing IEEE Standards / Candidate Technologies 9 6.1 Suitability of Existing IEEE Standards 9 6.2 Suitability of Candidate Technologies 9 7 Recommendation for Future IEEE Activities 10 7.1 Purpose of a new IEEE Standard 10 7.2 Need for a new IEEE Standard 10 7.3 5C Requirements 10 7.3.1 Broad Market Potential 10 7.3.2 Compatibility 10 7.3.3 Distinct Identity 10 7.3.4 Technical Feasibility 10 7.3.5 Economic Feasibility 10 Annex 11 Literature 12 Source: 15-17-0124-00-lpwa-ig-lpwa-report-skeleton-document

4. Motivation • The frequency regulation has a close relationship with LPWA payload size and media access scheme. • The Sub-GHz band regulation varies from country to country. • Regulations of unlicensed sub-GHz band in KOREA were changed. • MSIP* regulation 2016-102 (September30.2016) * (Korea Ministry of Science, ICT and Future Planning)

5. Available frequency bands in Korea Increase the maximum effective radiated power 917 MHz ~ 923.5 MHz New allocation 262 MHz ~ 264 MHz, 940 MHz ~ 946.3 MHz MSIP* Regulations 2016-102 (September30.2016) * (Korea Ministry of Science, ICT and Future Planning) Slide 5

6. 917 MHz ~ 923.5 MHz(1/2) • Center frequency • Maximum effective radiated power

7. 917 MHz ~ 923.5 MHz(2/2) • Output control • Case 1) Frequency hopping • Use at least 16 or more non-duplicated channels • Maximum hopping time : 0.4 sec • Case 2) LBT AFA • Carrier sense 5ms or more • at -65dBm or less • Sending duration : 4sec or less • Pause duration : 50ms or more • Case 3) Duty cycle limitation • ~ 10mW : Below 2% in 20sec duration • 10mW ~ 25mW : Below 1% in 40sec duration • 25mW ~ : Below 0.5% in 80sec duration

8. New allocation • Frequency band : 262 MHz ~ 264 MHz • Max. ERP : 100mW • Max. channel bandwidth : 200kHz • Duty cycle limit. : 1 % • Frequency band : 940.1 MHz ~ 946.3 MHz • Max. ERP : 200mW • Duty cycle limit. : 0.1% / hour

9. Summary In KOREA, three Sub-GHz frequency bands are available for LPWA 917 MHz ~ 923.5 MHz IEEE802.15.4g, IEEE802.15.4k LBT AFA (ex. LoRaWAN 1.02) 262 MHz ~ 264 MHz, 940.1 MHz ~ 946.3 MHz bands Newly assigned frequency bands Duty-cycled limited transmissions Slide 9

10. Thank you very much for your attention Any Questions?