doc.: ieee 802.11-04-0783-00-0wng submission july 11-16, 2004 j.w lim slide 1 wirelsslan spectrum...
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July 11-16, 2004
J.W LimSlide 1
doc.: IEEE 802.11-04-0783-00-0wng
Submission
WirelssLAN Spectrum Issuein Rep. of Korea
Jaewoo LIM1, Jongtaek Oh, Taejin LEE
1Ministry of Information & CommunicationRadio Research Laboratory
July 11-16, 2004
J.W LimSlide 2
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Motivation Global Global Domesti
c
Domestic
WRC-2003 resolveWRC-2003 resolve 5GHz Band for RLAN to Globally Harmonize5GHz Band for RLAN to Globally Harmonize
ISM band(2.4 & 5.8GHz) WLAN used U.S : UNII, Europe : HiperLAN 5GHz band allocation for global usage
Increasing demands for Wireless internet access
For preparing Ubiquitous Network in the future
High efficiency data transmission
Real time service provideVarious core network
support Spectrum efficiency upgrade (DFS, TPC)
High efficiency data transmission
Real time service provideVarious core network
support Spectrum efficiency upgrade (DFS, TPC)
Public WLAN Enhance Home Network
Application Cellular InterworkingNumerous application
possible
Public WLAN Enhance Home Network
Application Cellular InterworkingNumerous application
possible
July 11-16, 2004
J.W LimSlide 3
doc.: IEEE 802.11-04-0783-00-0wng
Submission
5GHz WLAN Service Position
1000(Mbps) 1 10 1000.1
Normedic
Vehicle
Standing
5GHz BandWLAN
2.4GHz bandWLAN
EV-DO/WCDMA
2G cellular2.3GHz Band
Wibro
- 802.11a- HyperLAN
802.11b
802.16a BWA
ADSL VDSL FTTH
July 11-16, 2004
J.W LimSlide 4
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Application : Public WLAN Service
Airport
Hotel
Public Area
Office
Home
Sub/Rail StationAnytime
Anywhere
WLAN
July 11-16, 2004
J.W LimSlide 5
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Public WLAN Service Issue• Public Wireless Access Service by Using Wireless LAN
– WLAN service provider installs WLAN AP in hot-spots, and provides wireless
access service to
– Users who have NICs (Network Interface Cards) and wireless terminals
(Notebook PC, PDA, etc)
– Through subscription, authentication, and charging
– Limited Service Coverage of WLAN AP
• About 100m for Indoor and 300m for Outdoor
– Technologies
• IEEE 802.11b now IEEE 802.11g+a, IEEE 802.11n in the future
• Low cost broadband and WLAN productivity
• High speed data and mobile coverage
July 11-16, 2004
J.W LimSlide 6
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Public WLAN Service Issue• Regulation Aspect
– Commercial service using ISM band
• Authentication and Privacy– Provide secure wireless communication to users– Enable service providers to exclude illicit users
• Network Planning for AP Installation– No experience for the massive installation of WLAN APs– Limited channels (three non-overlapped channels)
• RF Interference Issues– Interference between WLAN and other ISM devices– Interference between WLAN channels
July 11-16, 2004
J.W LimSlide 7
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Example : KT Public WLAN Service
• Hot spots coverage
– 13,000 sites available now in Korea (~20% world wide)
– About 20,000 Hot Spots accessible by the end of 2004
Hot spots: 12,000
Revenue: $20M
subscribers: 310,000
Hot spots: 12,000
Revenue: $20M
subscribers: 310,000
20032003 Hot spots: over 20,000
Revenue: $200M
Subscribers: 1,160,000
Hot spots: over 20,000
Revenue: $200M
Subscribers: 1,160,000
20042004
• Public Wireless LAN Service Market just begins to bloom• KT places great stress on NESPOT
July 11-16, 2004
J.W LimSlide 8
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Application : Home Network• In order to transmit HD image data(>20Mbps) IEEE802.11a(5GHz bands)
technology is needed• For realizing URC(Ubiquitous Robotic Companion) 5GHz bands is more
important to deploy IT infrastructure.
example : Samsung’s Home gateway
July 11-16, 2004
J.W LimSlide 9
doc.: IEEE 802.11-04-0783-00-0wng
Submission
Application : Celluer/WLAN Convergence
WLAN
기지국기지국
PCS/IMT-2000
PSTNInternet
2.3GHz WiBro
High speed/Data
Total/Convergence
Interworking
BTS
Low speed/Data
BTS
Interwork
Office (5GHz)
APAPBTS
HotSpot (2.4/5GHz)
DMB
Home (2.4/5GHz)
CDMA 1x, EV-DO
BTS
WLAN
• Allow access to wireless high-speed Internet and mobile communications with a single terminal
• The Synergy Effect of Public WLAN and EVDO’s Wide Coverage
• Broadband, Low Fee (WLAN) & Wide Coverage (CDMA)
July 11-16, 2004
J.W LimSlide 10
doc.: IEEE 802.11-04-0783-00-0wng
Submission
5GHz Spectrum Policy
5100 540053005200 5500 5600 5700 59005800
Europe
US
Japan
Korea
WLAN
U-NII5.725~5.825
Hiperlan5.470~5.725
Hiperlan5.15~5.35
WLAN(outdoor)5.25~5.35
WLAN(outdoor)5.470~5.650
Unlicensed455 MHz
Unlicensed555 MHz
Unlicensed100 MHz
Unlicensed480 MHz
WLAN Outdoor
FWA
ISM
U-NII5.15~5.35
WLAN
WLAN(indoor)5.15~5.25
ISM
• 5GHz band (380MHz wide) will be considered to WLAN (2004) : On processing
• Wide bandwidth and high-power transmission in outdoor will expand the coverage and ensure higher transmission quality