1. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
Project: IEEE P 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: ,
Re:
Abstract: Introduction to Korean Frequency Regulations for future work within IG LWPA.
Purpose: Discussion within IEEE IG LPWA
Notice: This document has been prepared to assist the IEEE P 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. R , 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 P
<author>, <company>

2. Korean Frequency Regulations for LPWA
<month year>
doc.: IEEE <doc#>
Korean Frequency Regulations for LPWA
Tae-Joon Park, Hoyong Kang,
Wun-Cheol Jeong
ETRI
<author>, <company>

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 Regulation 7
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 : lpwa-ig-lpwa-report-skeleton-document

4. doc.: IEEE 802.15-<doc#>
<month year>
doc.: IEEE <doc#>
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 (September )
* (Korea Ministry of Science, ICT and Future Planning)
<author>, <company>

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

6. 917 MHz ~ 923.5 MHz(1/2) Center frequency
Channel
Number
Center
Frequency(㎒) 1
917.1 9
918.7 17
920.3 25
921.9 2
917.3 10
918.9 18
920.5 26
922.1 3
917.5 11
919.1 19
920.7 27
922.3 4
917.7 12
919.3 20
920.9 28
922.5 5
917.9 13
919.5 21
921.1 29
922.7 6
918.1 14
919.7 22
921.3 30
922.9 7
918.3 15
919.9 23
921.5 31
923.1 8
918.5 16
920.1 24
921.7 32
923.3
Maximum effective radiated power
Channel Number
Max. ERP
1, 3, 4, 6, 7, 9, 10, 12, 13, 15, 16, 18
3 mW
2, 5, 8, 11, 14, 17, 19, 20～25
10 mW
26～32
25 mW
20～32 (Outdoor Fixed PMP)
200 mW

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 : MHz ~ 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 ~ MHz
IEEE g, IEEE k
LBT AFA (ex. LoRaWAN 1.02)
262 MHz ~ 264 MHz, MHz ~ MHz bands
Newly assigned frequency bands
Duty-cycled limited transmissions
Slide 9

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