Radio Technology Research Department ETRI(Korea Electronics and Telecommunications Research Institute) located in the middle of S. Korea (distance 120 km from Seoul) about 2,000 peoples work in all IT field(Radio Telecomms, etc) (for more details http://www.etri.re.kr )
2 I. Brief History of Spectrum Management in Korea II. Introduction of Handheld Radio Monitoring System III. Introduction of Transportable Radio Monitoring System I. Brief History of Spectrum Management in Korea
Sokcho Seoulbuk Kangneung Seoul CRMO Wonju Incheon SRMC Suwon
Dangjin Cheongju
Daejeon Andong
Pusan Kwangju
Changwon Suncheon
Jeju
4 History of Spectrum Management in Korea
MSIP
2013 (Ministry of Science, ICT and Future Planning )
~
KCC
2008 (Korea Communications Commission)
~
MIC
1994 (Ministry of Information and Communication) ~ MPT 1948 Ministry of Posts and Telecommunication
5 Organization of MSIP
Vice Minister I Vice Minister II
Office of Office of Planning ICT Industry Bureau and Coordination Broadcasting and Telecommunications Communications Policy Bureau IT Strategy Bureau Office of Future Convergence Policy Leading R&D Policy
Deputy Minister for Convergence Policy Bureau Science & Technology Coordination Broadcasting Promotion Science and Policy Bureau Technology Policy Bureau Radio Policy Bureau R&D Coordination Radio Policy Planning Bureau Division
Performance Radio and Broadcasting Evaluation Bureau Affiliated Institutions management Division
CRMO RRA Spectrum Policy Division
* MSIP (http://www.msip.go.kr), CRMO (http:// www.crmo.go.kr), RRA (http:// www.rra.go.kr) 6 Spectrum Management Service in Korea
International WRC Frequency Allocation RR
National Frequency Allocation MSIP Frequency Allocation
Frequency Usage Licensing Usage Approval Assignment (Commercial) (Military)
Station Authorization Type Approval SUPPORTING (CRMO) (RRL, CRMO) GROUP
Technical Station Inspection Support ETRI (CRMO KCA)
KISDI, KCA, Monitoring/Supervision TTA, RAPA /Anti-interference (CRMO) 7 Spectrum Management Service in Korea
C R M O
Radio planning Radio management Radio protection Radio Operation Support Division Division Division Division Division
(Planning & Budget) (Radio monitoring) (Survey & Control) (HF Radio monitoring) (General affairs & Accounts)
Regional Branches
Regional Offices (10) : Seoul, Busan, Kwanju, Satellite Radio Kangneung, Daejeon, Jeju, Ulsan, Monitoring Centre Daegu, Jeonju, Cheongju
8 History of Radio Monitoring in Korea
Phase I
User/ # of Main System Feature Problem Action station
9 History of Radio Monitoring in Korea
Phase II
User/ Feature Action # of station Main System Problem
10 History of Radio Monitoring in Korea
Phase III
User/ # of station Main System Feature Problem Action
11 II. Introduction of Handheld Radio Monitoring System Introduction
Background
Proximity monitoring of signals with a high freq. and a low power Spectrum sharing in ISM band to maximize spectrum usage Key role of USN(Ubiquitous Sensor Network) and Digital Home industry
Features Main Functions : Portable Direction Finding, Emission Parameters Meas. & Demodulation, Wideband Spectrum Measurement Connection with Mobile & Fixed Monitoring Systems Target Frequency : 20MHz ~ 6GHz with IF BW of 10MHz Power Consume : less than 25W which can operate more than 3 hours * @Sleep Mode : less than 2W 13 Block Diagram
Measurement Part Fixed or RF receiver part Digital Processing & Mobile DF Control System RF tuner IF conv. digital Meas./Oper. handheld radio COMPASS - I/Q /Ctl SW monitoring Ref. Signal Generator station
LO Gen. Ref. Clock Power/Battery ANT / e / ANT
Operation Part
Wire or Geolocation wireless GIS network GUI/Result Display DB
Handheld radio monitoring system
14 Configuration
Antenna Antenna Part
camera compass
500~1000MHz 1~6GHz 4.1”LED LCD Touch Receiver Part
20~200MHz 200~500MHz
USB2.0 fan 7.0” LED LCD Touch
GPS/WiFi antenna LED (Flash Memory/WiFi Power speaker button Access/Battery) 15 Specifications
16 Operation
17 Features in detail
18 Features in detail
compass
camera
4.1”LED LCD Touch
19 III. Introduction of Transportable Radio Monitoring System Introduction
Background
Need of proximity monitoring all the time to respond the trends of signals with a high freq. and a low power
Transportable
Transportable
Fixed TRANSPORTABLE MONITORING SYSTEM
Features 24/7 monitoring near the target located at the shadow area and dense area Install at the top of a building and tower with a small scale Main functions : Emission parameters meas., illegal signal search, spectrum occupancy, Environmental Noise Measurement Target Frequency : 20MHz ~ 6GHz with max IF BW of 25
21 Configuration
Radio Measurement #1
RF Receiving Digital Processing
RF Tuner IF Conv. I/Q Acq. Pre-proc.
Reference Signal Control/Networking Antenna #1 Antenna Meas. Comm. Antenna & LO Gen. Ref. CLK. CTRL. CTRL Radio Measurement #2
TCP/IP Operation TCP/IP
Comm. CTRL GIS Meas. Processing TCP/IP Networks DB
GUI/Result Data
22 Configuration
23 Configuration
Side
20MHz~6GHz Omni-Directional Front Bottom Antenna Measurement Part System
24 Comparison with Existed System
Existed Fixed Monitoring System Transportable Monitoring System Items (‘05 ~ ) (‘13~ ]
Frequency 20 MHz ~ 3 GHz 20 MHz ~ 6 GHz Range
IF BW 10 MHz 25 MHz
Measure 4 Channels 1 Channel Channel
- Large, High Power Consume - Small, Light, Low Power Consume - Fixed Setup on a metal Tower - Flexible Deploy on the Rooftop etc. - In-door Installed Receivers - Out-door Installed Receiver Specification - Radio Quality, Illegal Radiation - Increased Receiving sensitivity - Freq. Occupancy Measure - Radio Noise Analysis - Installed with Direction Finder - GPS Disciplined Frequency Reference
25 Specifications
26 Measurement of Radio Noise
1 k 2 2 ()k R i x F i1 ()k p1 R 2 x F i i1
Eigen Value Analysis Capture of Measurement Example 27 Conclusions
Importance of Spectrum Monitoring
It is encouraging to use SRD device and develop sharing technology in order to enhance efficiency in the management of radio resources.
In order to prevent a side effect of deregulation which promotes frequency utilization, it is important to strengthen monitoring after licensing.
A radio monitoring allows us to promote and spread the industry related to radio wave.
28 Conclusions
Radio Monitoring in Korea
Korean radio monitoring systems have been deployed successfully with recent IT technology for the last 7 years. Now we have a total solution compliant with international recommendations.
As a result, the number of violation stations and illegal stations has been decreased since 2005 with a successful operation of Korean monitoring system.
29 Ду́ же дя́ кую
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