radio technology research department · i. brief history of spectrum management in korea 4 seoul...
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Radio Technology Research Department
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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 )
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
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Seoul
Seoulbuk Kangneung
Cheongju Dangjin
Daejeon
Jeonju Daegu Ulsan
Pusan Kwangju
Jeju
CRMO
Sokcho
Wonju
SRMC Incheon
Suwon
Andong
Changwon Suncheon
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History of Spectrum Management in Korea
MPT
Ministry of Posts and Telecommunication
MIC
(Ministry of Information and Communication)
KCC
(Korea Communications Commission)
MSIP (Ministry of Science, ICT and Future Planning )
1948
1994
2008
2013
~
~
~
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Vice Minister II
Office of Planning and Coordination
Office of Future Leading R&D Policy
Deputy Minister for Science & Technology
Coordination
Science and Technology Policy
Bureau
R&D Coordination Bureau
Performance Evaluation Bureau
Office of Broadcasting and Communications
Convergence Policy IT Strategy Bureau
ICT Industry Bureau Telecommunications
Policy Bureau
Vice Minister I
Convergence Policy Bureau
Broadcasting Promotion Policy Bureau
Radio Policy Bureau
Radio Policy Planning Division
Radio and Broadcasting management Division
Spectrum Policy Division
Organization of MSIP
Affiliated Institutions
CRMO RRA
* MSIP (http://www.msip.go.kr), CRMO (http:// www.crmo.go.kr), RRA (http:// www.rra.go.kr)
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RR
Frequency Allocation
WRC
International Frequency Allocation
National Frequency Allocation
MSIP
Frequency Assignment
Usage Licensing (Commercial)
Usage Approval (Military)
Station Authorization (CRMO)
Type Approval
(RRL, CRMO)
Monitoring/Supervision /Anti-interference
(CRMO)
Station Inspection (CRMO KCA)
Spectrum Management Service in Korea
Technical Support
ETRI
SUPPORTING GROUP
KISDI, KCA,
TTA, RAPA
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Spectrum Management Service in Korea
Support
Division
C R M O
Satellite Radio
Monitoring Centre
Radio planning
Division
Radio protection
Division
Radio management
Division
Regional Branches
(Planning & Budget) (Radio monitoring) (Survey & Control) (General affairs & Accounts)
Regional Offices (10) : Seoul, Busan, Kwanju,
Kangneung, Daejeon, Jeju, Ulsan,
Daegu, Jeonju, Cheongju
Radio Operation
Division
(HF Radio monitoring)
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History of Radio Monitoring in Korea
Phase I
User/
# of
station
Main System Feature Problem Action
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History of Radio Monitoring in Korea
Phase II
Feature Problem Action User/
# of station Main System
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History of Radio Monitoring in Korea
Phase III
User/
# of station Main System Feature Problem Action
II. Introduction of Handheld Radio
Monitoring System
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Introduction
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
Features
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
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Block Diagram
Fixed or Mobile DF
System
handheld radio monitoring
station
Operation Part
GIS
DB GUI/Result Display
Geolocation
Measurement Part
Digital Processing & Control
Ref. Signal Generator
LO Gen. Ref. Clock
digital I/Q
Meas./Oper./Ctl SW
Power/Battery
RF receiver part
RF tuner IF conv.
Handheld radio monitoring system
Wire or wireless network
AN
T /
e-C
OM
PASS
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Configuration
fan 7.0” LED LCD Touch
speaker Power button
GPS/WiFi
antenna LED
(Flash Memory/WiFi Access/Battery)
Receiver Part
Antenna Part
camera
4.1”LED
LCD Touch
compass
Antenna
500~1000MHz 1~6GHz
20~200MHz 200~500MHz
USB2.0
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Specifications
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Operation
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Features in detail
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4.1”LED LCD Touch
compass
camera
Features in detail
III. Introduction of Transportable
Radio Monitoring System
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Introduction
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
Features
TRANSPORTABLE MONITORING SYSTEM
Transportable
Fixed
Transportable
Background
Need of proximity monitoring all the time to respond the trends of signals with a high freq. and a low power
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Operation
GUI/Result Data
Radio Measurement #1
Digital Processing
Reference Signal
LO Gen. Ref. CLK.
I/Q Acq. Pre-proc.
TCP/IP
TCP/IP
RF Receiving
IF Conv.
Control/Networking
Meas. CTRL.
Comm. CTRL
Networks
Antenna & Radio Measurement
#2
TCP/IP
Comm. CTRL
Meas. Processing
GIS
DB
RF Tuner
Ante
nna #
1
Configuration
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Configuration
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Configuration
Measurement System
Antenna Part
20MHz~6GHz Omni-Directional
Front
Side
Bottom
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Items Existed Fixed Monitoring System
(‘05 ~ )
Transportable Monitoring System
(‘13~ ]
Frequency
Range 20 MHz ~ 3 GHz 20 MHz ~ 6 GHz
IF BW 10 MHz 25 MHz
Measure
Channel 4 Channels 1 Channel
Specification
- Large, High Power Consume
- Fixed Setup on a metal Tower
- In-door Installed Receivers
- Radio Quality, Illegal Radiation
- Freq. Occupancy Measure
- Installed with Direction Finder
- Small, Light, Low Power Consume
- Flexible Deploy on the Rooftop etc.
- Out-door Installed Receiver
- Increased Receiving sensitivity
- Radio Noise Analysis
- GPS Disciplined Frequency Reference
Comparison with Existed System
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Specifications
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Eigen Value Analysis
1
22
( )
1
12
1
( )
k
k ix iF
p
x Fi
i
Rk
R
Measurement of Radio Noise
Capture of Measurement Example
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Conclusions
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.
Importance of Spectrum Monitoring
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Conclusions
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.
Radio Monitoring in Korea
