SINI

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WiBro Service, Standard and Technology Ninth
APT standardization Program forum (ASTAP-9) 29
Mar-1 Apr 2005, Bangkok, Thailand
2005. 3. 29 Seong-Choon Lee(lsc_at_kt.co.kr)
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Contents
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I. Overview of WiBro Service (1/8)
Definition

WiBro service means high speed wireless internet
service which is available anytime, anywhere
using portable terminal in stationary or even in
mobile environment. ? WiBro Wireless
Broadband
Stationary or Mobile Environment
Any time, Any where
High Data Rate
Low Tariff
1 Mbps User Data Rate (Day 1) Higher
Data Rate (Future)
Seamless Service even in outdoor
such as street, park and etc.
Nomadic Vehicular Mobility
Low CAPEX Roaming with WLAN and CDMA
Handset terminal for Notebook
PCMCIA card forNotebook and PDA
Handheld PC
Handset
PDA
Notebook PC
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I. Overview of WiBro Service (2/8)
Service Concept
Mobile
Automobile Service
Office
SIM
SD MMC
Infra Info
Seamless, Ubiquitous Experience
IC Card
Personal Info
Home
Shop
E-Tower
Game
DVC
STB
TV
Map Info
Digital Contents
PC
Audio
DVD
Telephone
Outdoor
F - 7
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I. Overview of WiBro Service (3/8)
Service Positioning
Mobility
Tariff Competitiveness
Service beyond the bounds ofWLAN, CDMA
1x(EV-DO), IMT2000
High
3G (IMT-2000)
Data Rate
2G (IS-95, Cellular)
Mobility
WiBro
Nomadic
Portability
Cordless
WLAN
Cordless phone
WiBro
DATA Rate
High speed DSL(ADSL,VDSL ..)
IMT-2000
Fixed
Wired Phone
Service Comparison
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I. Overview of WiBro Service (4/8)
Service Class

• Interactive Service Best-efforts
• Web Browsing, Interactive Game, etc.
• Streaming service (rtPS Real Time Poling
  Service)
• VoD, MPEG, etc.
• Back Ground service (nrtPS Non Real Time
  Poling Service)
• FTP, E-MAIL, SMS, multicast/broadcast, MMS, Push
  etc.
• Real Time Service (UGS Unsolicited Grant
  Service)
• VoIP

Requirement of WiBro Service
Provide the way to use high speed internet
service not only in home but also in outdoor
? Equivalent data rate to xDSL per user
Maximize the usage over the allocated spectrum
Maximize the spectral efficiency Extend the
service coverage Reduce the cost per bit Low
power consumption at AT Faster handoff
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I. Overview of WiBro Service (5/8)
Customer Needs
In Korea wireless internet service is mainly
used for entertainment (58), communication
(email/café 17.6) and business (9.3). CDMA
1X(EV-DO) shows poor service quality,
insufficient contents despite high tariff
system and WLAN has several shortcomings such as
service coverage and QoS problems in spite
of high speed data rate and low tariff
system. Customer needs of WiBro service is
high speed data rate and low tariff system,
which are the accelerating factor for widespread
use of wireless internet.
Service area ? including mobile status
Terminal ? PDA, Notebook
Service ? email gt game
42.1
School/office
59.5
56.7
50.6
36.3
Bus/Subway
30.2
28.6
Street
9.3
Indoor
8.7
Web Browsing
Business trip
Messenger
email
MMS
Game
3.5
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I. Overview of WiBro Service (6/8)
Total Access (Sprint/Nextel)
F - 7
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I. Overview of WiBro Service (7/8)
Technical Consideration (Sprint/Nextel)
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I. Overview of WiBro Service (8/8)
Operators Vision

• End-to-End Wireless IP Data Services Design
• Better than 1 Mbps Performance User Experience
• Mobility for Data with IP QoS support
• Day 1 - Non real time
• Future - Real time
• Integrated wireless backhaul capability
• True International Standard and Devices
• Requires flexibility for bandwidth and band plans
• Need to support both TDD and FDD based on
  spectrum allocations
• Devices examples Desktop modem, PCMCIA card,
  Handset, Compact Flash
• Embedded into all broadband capable consumer
  devices
• 10x competitive advantage to current 3G
  systems

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II. WiBro Standardization in (1/8)
TTA organization
Technical Assembly (TA)
Coordination Committee (CC)
Technical Committees (TC)
Project Groups (PG)
Information Security, Internet Security,
Biometrics, Welfare Communication, IC Card, SoC,
Disaster Recovery, Embedded S/W
Common Infrastructure (TC1)
Optical Transmission, Optical Internet,
Signaling, Routing Protocol, Quality of
Service, VoIP, ENUM, NGN, Active Internet,
Charging Interconnection, Network Management,
IPv6, LAN, DSL, Digital Home
Transmission (TC2)
Radio Communication (TC3)
Digital TV, DMB, Digital Cable, WPAN, Wireless
LAN, Propagation Measurement, NGMC, LBS,
Telematics, Portable Internet (WiBro)
WEB, Multimedia Application, Workflow,
E-commerce, Public information, MetaData, S/W
process, S/W Components. NGIS, ITS, Grid
IT Application (TC4)
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II. WiBro Standardization (2/8)
WiBro standardization status

• TTA has begun WiBro Standardization since June
  2003.
• Establishment of 2 Working Groups and 2 Ad Hoc
• WiBro Standardization Activities Timeline is
  as follows.

• Definition of Service/System Requirements

• Preparation of the Draft Standard
• Definition of major system parameters
• Definition of items/criteria/conditions for
  Evaluation
• Collection and Evaluation of Baseline Proposals
• Selection of Baseline Proposal(s)

• Completion of Draft Standard

• Approval and Notification of Standard

• Harmonization with IEEE 802.16e
• Approval and Notification of New Standard
  including performance enhanced technologies
  such as MIMO, smart antenna etc.

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II. WiBro Standardization (3/8)
Major Decision
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II. WiBro Standardization (4/8)
WiBro Network Architecture

• PSS (Portable Subscriber Station)
• - Wireless access
• - IP mobility, Terminal/User authentication
• - Multicast service, Other network
  interworking
• RAS (Radio Access Station)
• - Wireless Access
• - Radio resource management/Control
• - Handoff support
• - QoS support, Downlink Multicast
• ACR (Access Control Router)
• - IP routing and Mobility management
• - Authentication/Security
• - QoS, IP Multicast, Billing support
• - Handoff control between RASs
• Core Network
• - Authentication, Billing

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II. WiBro Standardization (5/8)
Standardization of major technology
IEEE 802.20
Mobile BWA
flash-OFDM
iBurst
HSDPA
MWA
3GPP
W-CDMA
IEEE 802.16e
Mobile
cdma2000 1x EV-DV
IS-95B
Mobile Wireless MAN
cdma2000 1x
3GPP-2
cdma2000 1x EV-DO
IEEE 802.15.1 Bluetooth
IEEE 802.15.3a UWB
IEEE 802.15.3 HR
IEEE 802.15.4 LR
Wireless PAN
IEEE 802.11a HIPERLAN/2
NWA
Nomadic
IEEE 802.11
IEEE 802.11b
Wireless LAN
IEEE 802.11g
IEEE 802.16
FWA
Wireless MAN
Fixed
IEEE 802.16a/HIPERMAN
10k
100k
1M
10M
1G
100M
Not drawn to an exact scale
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II. WiBro Standardization (6/8)
IEEE 802.16 Evolution
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II. WiBro Standardization (7/8)
IEEE 802.16d 802.16e
IEEE 802.16d
IEEE 802.16e Network Model - Revision to
802.16, 802.16a, 802.16c - Licensed
bands, 211GHz - Non line of sight
(Practical) - Lower component cost
Good for residential and
small-business - 30Mbps in 10MHz BW IEEE
802.16e - Amendment to 802.16a/c/d -
Licensed bands, 26GHz - Non line of sight
- Support vehicular mobility - Main concern
on handoff and sleeping mode
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II. WiBro Standardization (8/8)
Roadmap of WiBro standardization
TTA
Korea decided IEEE 802.16eas WiBro Standard
Baseline. (Jul. 2004)
Phase I Rev.
Phase I
Phase II
2004.6
2004.10
2004.4Q 2005.2Q

• Enhanced PHY/MAC
• AAS, MIMO, LDPC, H-ARQ

• PHY Harmonization
• MAC Harmonization

• OFDMA/TDD
• 1024 FFT, BW 10MHz

• IOT Profile
• - Profile statement
• (2005.1Q)
• - Spec Work
• (2005.2Q)
• - Completion of Spec
• (2005.3Q)

802.16d/e
802.16d/e
TTA

TTA
IEEE 802.16e
Issue 802.16e/D5
Issue 802.16e/D6
Publish
Issue 802.16e/D7
2004.9
2005.3Q (?)
2005.2
2005.4
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III. WiBro Technology (1/4)
WiBro standard baseline and spectrum allocation

• WiBro system should satisfy IEEE 802.16-2004,
  IEEE 802.16e D3 above standard and 5 performance
  criteria
• Min data rate under 60km/h condition in cell
  edge 512kbps (DL), 128kbps (UL)
• Bandwidth above 9MHz
• Roaming between WiBro operators
• Frequency reuse factor 1
• Duplex TDD including Tx/Rx time slot
  synchronization between WiBro operators
  
• Spectrum allocation for WiBro service

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III. WiBro Technology (2/4)
Key Features
RF Frequency 2.3GHz Multiple
Access/Duplexing OFDMA/TDD Frame length 5
msec Bandwidth scalable from 1.25MHz to
20MHz Flexible subchannelization for band
selection and diversity Fast AMC (Adaptive
Modulation and Coding) subchannel based on
uplink CQI (Channel Quality Indicator) Full
diversity subchannel by multiple symbol
grouping Cell differentiation with different PN
sequences Pilot tone based downlink and
uplink Separate ranging channel time slot
More efficient channel code convolutional (or
block) turbo code H-ARQ in the downlink and
uplink Modulation level QPSK, 16QAM, 64QAM
Optional AAS (Adaptive Antenna System) support
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III. WiBro Technology (3/4)
System Parameters
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III. WiBro Technology (4/4)
System Capacity
System Capacity
4 / 15
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IV. WiBro Business Plan in KT (1/5)
Logis
WiBro Network
UsN
FPGA
Contents Partner
Macro-RAS
micro-RAS
Service Center Information Center Public Offices
Portable
Entertainment
PCMCIA
Tablet
ACR
Voice
Internet
Handheld
Enterprise
CF
SmartPhone
Command Control
pico-RAS/ Repeater
Smart/MIMO-RAS
Home Network
Chipset
Subsystems Service management system
Mobile Internet Telematics
e-Shop
Bank
ITS
Network
User terminal
Service/Contents
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IV. WiBro Business Plan in KT (2/5)
Deployment Policy
Deployment by stages within three years
CAPEX reduction using currently operated
wired/wireless infra (Backbone/Access
network) Minimization of shaded zone using
repeater, WLAN/CDMA interworking
Interworking Concept
Hot Zone
2G/3G
WiBro
Hot Spot
AP
AP
AP
AP
Airport
Park
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IV. WiBro Business Plan in KT (3/5)
Terminal Policy
Various terminal (Card, Chip embedded Notebook,
PDA, HPC, Smart phone etc.) WiBro exclusive
terminal (Easy access and User friendly
interface) Specific WiBro terminal interworking
with existing services (WLAN, CDMA, DMB)
Terminal Type
Roadmap
Phase 1
Phase 3
Phase 2

• Specific Terminal
• - Person/Enterprise
• - Intelligence converged
• - Service specific

WiBro exclusive Terminal - Card - Embedded

• Multimode Terminal
• Card, Embedded type
• WiBroCDMAGPS etc.

One Chip
Notebook
DBDM Terminal WiBro WLAN WIBro DMB WiBro GPS
WiBro exclusive Portable Terminal DBDM
Terminal (WiBro CDMA)
TBTM TerminalWiBro WLAN CDMA WiBro CDMA
DMB
PDA
Smart Phone
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IV. WiBro Business Plan in KT (4/5)
Service Strategy
WiBro Killer Application
Existing Internet Service

• Development of killer application with
  multimedia/convergence type
• Main WiBro BMs are MMS, LBS, Game, Push
  service, IP Multicasting.
• WiBro service interworking with existing
  services

• MMS (Multimedia Messaging Service)
• Hi-Quality Video Mail/Messaging
• Push Service
• Group video chatting, Ad Coupon
• Game IP based network game
• LBS (Location Based Service)
• IP Multicasting Service
• High-Quality VOD, Real Time Broadcasting,
  Movie

Wired
Main service

• Web Browsing, e-Mail Information
• Movie VOD Entertainment
• e-Stock, e-Banking, e-Learning etc.

Evolution and Development

• Multimedia
• Convergence
• Wired/Wireless

• SMS
• VOD, Game Entertainment
• e-Banking m-Commerce

Wireless

• Nespot (WLAN) interworking service
• CDMA interworking service
• DMB interworking service
• Megapass (xDSL) interworking service

Interworking service
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IV. WiBro Business Plan in KT (5/5)
Roadmapof WiBro Business in KT

• KT acquired 2.3GHz spectrum for WiBro service
  Jan. 2005. (After government investigation of
  WiBro business proposals, KT was selected
  the most superior WiBro operator.)
• KT is currently trying to prepare successful
  commercial WiBro service scheduled Apr. 2006.

• Development of system and service

• Cell planning, cell site preparation,
  system/vendor evaluation

• Contract, procurement, installation

• Completion of Installation

• Begins Trial service

• Launches Commercial service

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Thank you !