1. PRESENTED BY ROGIN JOSE S7 EC ROLL NO: 40
WiBroTM Overview
PRESENTED BY
ROGIN JOSE
S7 EC
ROLL NO: 40

2. Contents WiBro overview Korea Standardization IEEE802.16 & WiMAX I II

3. WiBro overview
PART I

4. WiBro - Definition WiBro Definition Reference High Mobility Data Rate
Portable Internet Service (WiBro) is to provide a high data rate
wireless internet access with PSS (Personal Subscriber Station)
under the stationary or mobile environment, anytime and anywhere.
Definition
『Portable Internet』was named as 『WiBro』. (End of April, 2004)
WiBro : Wireless Broadband
Reference
WiBro
Low Cost
Anytime,
Anywhere
Mobility
High
Data Rate

5. WiBro - Definition Much lower service charges than EV-DO
Much higher-speed Internet access than EV-DO
Mobile Internet access in high-speed mobile environment
Much wider coverage than wireless LAN-based services
Internet
Access
High
Data Rate
Anytime,
Anywhere
Stationary or Mobile
Stationary/Mobile
mid-mobility
(~60Km/Hr)
Indoor/outdoor
Seamless access
over 1Mbps
High-speed
Multimedia
User Terminal :
Notebook, PDA,
Handset
Definition
Concept

6. WiBro - Positioning WiBro Mobility User Data Rate High Mobility
WLL
Fixed
High Mobility
IMT2000
(3G)
Mobility
2.4GHz Wireless LAN
WiBro
User Data Rate
ADSL/HFC/B-WLL
The next Generation
Multimedia Service
Cellular PCS
(2G)

7. WiBro – Frequency Allocation
[ GHz]
40MHz
HTI
(20)
2.4GHz
(83.5)
5.8GHz
(100) A B C
130MHz K T
IMT2000
WLL
ISM KT
(UP)
[ GHz]
HTi
GUARD BAND
(DOWN)
10MHz MHz MHz MHz MHz
WiBro
1FA=9MHz
2300MHz
2400MHz
Band 1(SKT)
Band 2(KT)
Band 3(TBD)
Guardband=4.5MHz
Guardband=10MHz
Fixed & Mobile
Fixed

8. Frequency Reuse Factor [bps/Hz/cell(sector)]
Key Factors of WiBro
Major Decision
The TTA PG702 Meeting of Jan 31, 2004 approved the Major System Parameters & Radio Access
Requirements as follows.
TTA changed Standardization committee name from PG302 to PG702
according to reorganization of TTA standardization committee (Dec. 2007)
Major System
Parameters
Radio Access Requirement
TDD
Frequency Reuse Factor
Duplexing 1
OFDMA
Multiple
Access
8.75 [MHz]
Channel BW
Mobility
≤ 60 [Km/h]
Service Coverage
≤ 1 [Km]
Spectral Efficiency
[bps/Hz/cell(sector)]
Max. DL / UL = 6 / 2
Aver. DL / UL = 2 / 1
Handoff
≤ 150 [ms]
Throughput
(per user)
Max. DL / UL = 3 / 1 [Mbps]
Min. DL / UL = 512 / 128 [Kbps]

9. Network Architecture of WiBro
PSS HA
RAS
ACR
AAA
Public IP Network
Operator’s
IP Network …
ACR : Access Control Router
RAS : Radio Access Station
PSS : Personal Subscriber Station

10. WiBro Business in Korea
3 Operators are selected at February 2005.
KT, SKT, (TBD)
Operators
27 MHz per operator
Band#1 : 2300 ~ 2327MHz (SKT)
Band#2 : ~ MHz (KT)
Band#3 : 2363 ~ 2390 MHz
Frequencies
Trial Service during 1Q of 2006.
Launching Commercial Service : June 30, 2006
Status

11. Korea Standardization
PART II

12. Committee Structure & ToR of PG702
Radio Access
Working Group
IMT WiBro
Project Group
(PG702)
Service and Network
International Coordination
Ad Hoc
Radio Access Standardization on IMT WiBro
Radio Access Standardization for In-building WiBro
International Coordination and Collaboration Activities
(IEEE and ITU-R WP5D, etc.)
Standardization related to Service and Network on IMT WiBro
International Coordination and Collaboration activities related
to Service and Network on IMT WiBro
International Coordination Activities related to IMT WiBro
(IEEE , ITU-R WP5D, WiMAX, CJK and TTA PG701,
etc.)
Analysis of International Standardization and Progress
related to IMT WiBro
IOT/CT
Standardization of Profiling, Interoperability and
Conformance Test on IMT WiBro
Coordination and Collaboration activity with WiMAX Forum
* ToR : Terms of Reference

13. IEEE and WiMAX
IIl

14. IEEE802.16 Body Working Group on Broadband Wireless Access
Chair : Roger B. Marks (NIST)
Task Group
TGe* : enhancement to support mobility (session closed)
Maint* : corrigendum to IEEE std
TGh : amendment for license-exempt options
TGc : amendment for conformance test
TGf/g : MIB and Management Plane procedures
MMR SG : Mobile Multihop Relay
* TTA PG302 works for harmonization with TGe and Maint

15. WiBro and IEEE 802.16 Fixed Wireless (TGd)
IEEE Std : published on Oct. 1, 2004
As a revision of IEEE Standard (as amended by IEEE Standard c-2002, and IEEE Standard a-2003).
Mobility Support Enhancement (TGe)
IEEE Std e-2005 : Published on Feb. 28, 2006(including /Cor1)
P802.16e standard approved by IEEE-SA on Dec. 7, Amendment for Physical and Medium Access Control Layers for
Combined Fixed and Mobile Operation in Licensed Bands below
6 GHz
WiBro Specification
= Subset of Consolidated version of
“IEEE Std P802.16e +P /Cor1.”

16. Relationship between WiBro and IEEE 802.16
IEEE Standard
(SC, SCa, OFDM, OFDMA PHY mode
with Single IEEE MAC)
IEEE P /Cor1
(To correct errors, inconsistencies, and ambiguities in IEEE Standard )
IEEE P802.16e
(Combined Fixed and Mobile Operation in Licensed Bands below 6 GHz)
WiBro (Complete Subset of IEEE )
Should support the IEEE Standard and IEEE P802.16e and provide the 5 criteria (TDD, FRF=1, 60km/hr mobility support, FA >= 9 MHz, roaming between operators, etc)
Shall support the Mandatory Features of IEEE
WiBro Profile = the set of functionalities configuring every mandatory features and many optional features of e.
WiBro Air Interface Specification is fully compatible with IEEE P802.16e
WiBro Profiles and Test Specifications will be harmonized with WiMAX Forum’s currently developing Mobile WiMAX Profiles and Test Specifications. (Most of the major manufacturers are participating as the active members of WiBro and WiMAX.)
* FRF : Frequency Reuse Factor

17. IEEE Specifications

18. WiMAX Forum Scope Board of Directors (13 Prs. from 12 companies)
Promote use of BWA products support standard
Interoperability of all products support standard
Propose and promote access profiles for .16 standard
Certify interoperability levels in network and cell
Board of Directors (13 Prs. from 12 companies)
President and Chair: Ron Resnick, Intel
Vice President: Dr. Mohammad Shakouri, Alvarion
WiMAX Forum Member Companies
340 companies

19. WiMAX Working Group
NWG : higher level network specification for fixed, nomadic and mobile.
SPWG : Feedback from Service Providers
TWG : conformance and interoperability
CWG : evaluation of testing options

20. Parameters of WiBro specification (1/2)
Value
Duplex
TDD
Multiple Access
OFDMA
System Bandwidth
10 MHz
Sampling frequency
Number of used tones
864 out of 1,024
Number of data tones
768
Number of pilot tones 96
Tone spacing
kHz
Signal bandwidth
8.447 MHz
Ratio of cyclic prefix time to the basic OFDM symbol time
1/8
Basic OFDMA symbol time
102.4 ms
Cyclic prefix time
12.8 ms
OFDMA symbol time
115.2 ms
TDD frame length
5 ms
Number of symbols in a frame 42

21. Parameters of WiBro specification (2/2)
Downlink symbol parameter
Value
Number of bands 24
Number of bins per band 4
Number of tones per bin
9 (8 data + 1 pilot tones)
Number of tones per AMC subchannel
54 (48 data + 6 pilot tones)
Number of tones per diversity subchannel
Number of bins per AMC subchannel 6
Uplink symbol / tile parameter
Value
Number of bands 24
Number of bins per band 4
Number of tones per bin
9 (8 data + 1 pilot tones)
Number of tones per tile
Number of bins per AMC subchannel 6
Number of tiles per diversity subchannel

22. Frame Structure ... . 5 ms DL UL TTG RTG BIN UL control symbols TILE
Band 3
B-2
5 ms 1 2
B-1
BIN
...
UL control symbols
TILE
PUSC Subchannelization
Diversity subchannelization
AMC Subchannelization

23. Summary of Key Features (1/2)
Multiple Access/Duplexing: OFDMA/TDD
Frame length: 5 msec
Bandwidth: 10MHz with 1k-FFT
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
Preamble for Cell differentiation with different Random sequences

24. Summary of Key Features (2/2)
Pilot tone based downlink and uplink
Separate ranging channel time slot
Safety channel
More efficient channel coding: convolutional turbo code and short block codes
H-ARQ with CTC in the downlink and uplink
Modulation level: QPSK(DL/UL), 16QAM(DL/UL), 64QAM(DL only)
Optional AAS (adaptive antenna system) support

25. QUERIES???

26. THANK YOU