Introduction to WiBro (Mobile WiMAX)
Sep. 29. 2005
Han-Seok Kim Samsung Electronics Co., Ltd.
?2005 Samsung Electronics
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Contents
Introduction to Mobile WiMAX
Why Mobile WiMAX Mobile WiMAX services
WiBro in Korea
WiBro overview WiBro project milestone
Standardization
Mobile WiMAX vs. Fixed WiMAX Samsung contributions in 802.16e
Samsung Mobile WiMAX solution
Network architecture Product roadmap
Research Issues
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Introduction to Mobile WiMAX
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Introduction to Mobile WiMAX
What is Mobile WiMAX?
Mobile WiMAX is a Wireless Broadband access technology based on IEEE 802.16e standard. WiBro is the Korean Wireless Broadband access service compliant with IEEE 802.16e standard.
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Introduction to Mobile WiMAX
Korean Telecom Market Trend
Broadband Market
(Unit: Million)
Mobile Data Market
79%
(Unit: US $M) 13,813 14,941 17,447 15,861
73% 64% 11.2
77%
11.8
12.2
9.9 7.8 26% 2% 0.3 1999 2001 2002
TT TT
3,326 534 1,204 2002 2,217 2003 2004
2003
2004 June, 2005
2001
Total broadband subscriber Broadband household penetration
Source: MIC
Cellular revenue Mobile data revenue
Source: KISDI
■ Broadband market is saturated ■ Mobile data market is rapidly growing
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Extend to new biz. Segment (Wireless) Provide new service for mobile data users
( More bandwidth per user and inexpensive service charge)
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Challenges in Telecom. Biz
Introduction to Mobile WiMAX
Wireline Broadband
Enough Speed Good Quality Subscriber Saturation No Mobility
WiFi Hot Spot
Unlicensed Spectrum Portability Lack of Coverage Limited Public Network Service
Advanced Wi-Fi
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Enhanced 3G
3G Success
Good Coverage Int’l Roaming Camera/Polyphonic Good Voice Quality Limited Spectrum Limited Data Speed
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3G Challenges& Enhancement
Enhanced Data Rate Enhanced Services
(BCMCS, PTT, VoIP, etc)
Limited Spectrum Cost Issue
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Why Mobile WiMAX
Introduction to Mobile WiMAX
Analysis of Customer Needs
WLAN Limited Mobility Limited Coverage Wireless Internet (1x+EVDO) Low Data Speed Expensive Price
Needs of Enhanced Mobility, Coverage, Speed & Price advantage
Mobile WiMAX
Wired B.B. Internet * Place Service
1. Home (90 %) 2. Company (30 %) 3. PC Cafe (22 %)
WLAN *
1. School/Work (72 %) 2. Home (26 %) 3. Airport ( 1 %) Similar with Broadband Internet Service Mobility - Low Price - Low Security - Low Data Speed - High
Wireless Internet
(EVDO)* 1. Home (41 %) 1.Enterprise 2. School/Work (31 %) 2.Home residential consumer 3. In Movement (26 %) https://www.doczj.com/doc/4b11314967.html,p top users, Multimedia 1. Ring-tone/Melody 2. Game 3. Music Mobility - High Price - High Security - Fair Data Speed - Low 1. Commerce / Government 2. Media / Public Safety 3. VOIP / LBS/ Gaming Mobility - High Price - Low Security - Good Data Speed - Fair ** Anticipated
Mobile WiMAX **
1. Information Search 2. Game 3. e-mail Mobility - None Price -low Comparison Security – Good Data Speed - High
* Source: NIDA (’04.10)
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Introduction to Mobile WiMAX
Positioning of Mobile WiMAX
User Drivers
- Always on Best Connected (ABC), Anywhere and Anytime - Inexpensive services and applications
Operator Drivers
- Mobile broadband solution, not Fixed - Fixed Mobile Converged services/applications
High Throughput
DSL/ Cable
WLAN
4G Mobile Communication
Mobile WiMAX
3G Mobile Communication
Fixed
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Mobility
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Mobile WiMAX Services
Mobile WiMAX Services Positioning
Low cost, mobile broadband networking
Mobility
Mobile WiMAX services position enabler
3G
Broadband Internet
1. Mobility - Service in 120km/hr - Fixed Mobile internet access - Dual mode service synergy (802.16e + cellular) 2. Broadband - UL 512, DL 128kbps guaranteed service - Cellular base Internet base - Rich contents multimedia service 3. Low cost - Low tariff to subscribe - Low investment risk
High
802.16e
2G
Guaranteed Mobility WLAN xDSL Wide Bandwidth
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Introduction to Mobile WiMAX
Towards 4G Services
Mobility 1995 2000 2005 2010
High WCDMA
4G 4G
NG Mobile NG Mobile Service Service
OFDMA OFDMA
2G/2.5G
Medium Mobile Access Cellular/PCS
3G
EvDo
Mobile WiMAX (802.16e)
Core Technology
MIMO MIMO
Pedestrian
802.16d
Smart Smart Ant. Ant.
5GHz WLAN
High Quality Streaming/ Multimedia
? OFDMA : Orthogonal Frequency Division Multiplexing Access
Stationary
Fixed Wireless Access Voice Date Image/ Graphic
2.4GHz WLAN
Video
Data Rate
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? MIMO : Multi Input Multi Output
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Introduction to Mobile WiMAX
802.16e Business Segment
Mobile
. Wireline incumbents
Nomadic
VoIP
- KT, BT, FT : Expanding its business to mobile market
. Greenfield operator
- New player : Service convergence
. Bundle service - KT/KTF : Cellular + WLAN
. Mobile operator
- Sprint, KDDI, SKT - SingTel : High speed data network
. Wireline operators
- Telefonica, UPC, Telkom - mmO2, M1 : Wireless DSL : Wireless Backhaul: Orange
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Introduction to Mobile WiMAX
802.16e Business Model
Mobile “Alternative mobile” Data + VoIP
. Wireline based network convergence (Supported by Single 802.16e terminal) - IMS Core network useful . Potential threat to mobile operator
Nomadic
“WLAN + Cellular bundle”
“Hotzone” “Mobile Broadband” Data
. Wireless based network convergence (DBDM terminal necessary) - GSM, CDMA complementary - Mobile roaming market considered . Wireless DSL/Backhaul - Competition with FWA(802.16d) - WLAN complementary . Wider and seamless Internet access . Biz solution for private hotzone owner (shopping mall, Amusement Park)
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Introduction to Mobile WiMAX
Mobile WiMAX Services
MMS + IM VoIP PTA
here here
Telematics
- Traffic Info. - Location search
- PTT (Push to talk- 1:N telephony) - PTD (Push to Data - Send data during PTT) - PTV (Push to Video - 1:N Video telephony)
LoBlog
- LBS + Blog
Messaging & Communication
LBS
“Anytime, Anywhere and Any device”
Personalized Multimedia AOD/ MOD VOD Streaming Broadcasting Interactive Gaming
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Public Safety Emergency Surveillance Security Database Lookup
Introduction to Mobile WiMAX
Mobile WiMAX Global Status
? Mobile WiMAX is so faster than expected
. ’05.3Q: Mobile WiMAX Profile to be ratified . ’06.3Q: Mobile WiMAX Certification
? A Great momentum for Mobile WiMAX booming-up
. ’07.1Q: Intel plans to roll out Mobile WiMAX chip to be embedded in Laptop
? Mobile WiMAX Show Case in Korea
. ’06.4 @Korea: World 1’st commercial launch of Mobile WiMAX
? Superior performance to the other BWA technologies
. vs. WiFi and Fixed WiMAX’06.4
? The major telecom vendors are participating in Mobile WiMAX, not “Monitoring”
. Lucent, Alcatel, Motorola, ZTE, Huawei
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WiBro in Korea
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WiBro in Korea
WiBro overview
WiBro is the “Wireless Broadband” service in Korea Wireless Broadband”
WiBro is based on Mobile WiMAX technology and Mobile WiMAX is fully compliant with IEEE 802.16e TDD OFDMA Standards
The World 1st Telco-grade commercial service Telcoby April 2006 in Korea
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WiBro Regulation
WiBro in Korea
Specification Policy
? WiBro is compliant with IEEE 802.16e standards
Key Requirements
? Min. Transfer rate : DL=512 Kbps, UL=128Kbps ? Channel bandwidth : ≥ 9MHz ? Inter-Vendor Roaming ? Frequency Reuse Factor is '1' ? Duplex = TDD & Tx/Rx Time Slot Synchronization over operators
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WiBro positioning on WiMAX Forum WiMAX forum profiles
Fixed WiMAX (802.16d) Mobile WiMAX (802.16e) Freq: 2.3G, 2.5G, 3.5G, … Ch. BW: 1.25, 2.5, 5, 10, 15, 20, 1.5, 3, 6, 12, 24, 1.75, 3.5, 7, 14, 28, 4.375, 8.75, 17.5 MHz WiBro Freq: 2.3G Ch. BW: 8.75MHz
WiBro in Korea
Freq: 3.5G, 5.8G, … Ch. BW: 3.5(FDD), 7/10(TDD), … MHz
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WiBro in Korea
WiBro Concept Trend
Mobility Multimedia Convergence Ubiquitous
Concept of WiBro
Cellular 3G
WiBro
Anywhere High Low price Mobile Anytime Throughput ; Internet ; ~ 60km/h ; Always on ; 1Mbps/user flat fee Seamless
: WiBro is the stepping stone for 4G
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Korean WiBro Project Milestone
WiBro in Korea
Aug. 2004 Aug. 2004 Sep. 2004 Sep. 2004 Oct. 2004 Oct. 2004 Dec. 2004 Dec. 2004 Feb. 2005 Feb. 2005 Apr. 2006 Apr. 2006
:: Deliberation Committee of Policy Deliberation Committee of Policy :: Determination of the Selection Policy for Determination of the Selection Policy for WiBro Service Providers WiBro Service Providers :: Announcement of the 2.3 GHz Bandwidth Allocation Announcement of the 2.3 GHz Bandwidth Allocation :: Request for the Business Proposal Request for the Business Proposal :: Selection of the WiBro Service Providers (KT, SKT) Selection of the WiBro Service Providers (KT, SKT) :: WiBro Service Open (Commercially) WiBro Service Open (Commercially)
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WiBro in Korea
WiBro/ IEEE 802.16e Standardization Status
WiBro Standardization Roadmap (by TTA)
Select the IEEE 802.16e for the baseline of WiBro standardization (’04.July) Phase I
June 2004
Phase I Rev.
Oct. 2004
Phase II
4Q ‘04 ~ 4Q ‘05
? 802.16 d/e WiBro
? 802.16 d/e WiBro
? IOT Profile
- Profile Statement(’05.1Q) - Spec Work (’05.2Q) - Spec completion (’05.3Q)
IEEE 802.16e Standardization Roadmap (by IEEE)
Issue 802.16e/D5
Sep. 2004
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Issue 802.16e/D6
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Issue 802.16e/D7
April. 2005
Standard Ratification
Oct. 2005
WiBro in Korea
WiBro Business Status in Korea
Operators Operators KT, SKT KT, SKT Commercial Service :: KT(April '06) Commercial Service KT(April '06) Spectrum Spectrum 2300MHz ~ 2327MHz 2300MHz ~ 2327MHz 2331.5MHz ~ 2358.5MHz 2331.5MHz ~ 2358.5MHz 2363MHz ~ 2390MHz 2363MHz ~ 2390MHz
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WiBro in Korea
Specification - Physical Layer
Frequency Band Channel Bandwidth Multiple Access Modulation Channel Coding Key Features Frame Length Maximum Data Rate RAS Synchronization Cell Coverage
: 2.3 GHz : 9MHz : TDD/OFDMA : QPSK, 16QAM, 64QAM(DL Only) : CTC(Convolutional Turbo Code), CC : AMC, H-ARQ, etc : 5msec : DL-19.97 Mbps, UL-5.53 Mbps : GPS : urban ~ 1Km
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WiBro in Korea
Specification - MAC Layer (1/3)
Flexible Bandwidth Allocation by MAP
– Frame by Frame
Supports flexible QoS offering
– BE, rtPS, nrtPS, UGS, ertPS
Efficient MAC PDU construction
– Variable size MAC PDU – Fragmentation, Packing, Concatenation
Connection-oriented Supports header suppression ARQ Awake mode / Sleep mode / Idle mode QCS (Quick Connection Setup) Handover
– MBB(Make-Before-Break), BBM(Break-Before-Make) – FBSS(Fast BS Switching)
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Specification-Network Layer
WiBro in Korea
IP version
– – – – – – – – – – IPv4 IPv6
IP QoS
Diffserv Packet classification and mapping to MAC transport connection L2 mobility for seamless handover Mobile IP
Mobility
Authentication/Security
EAP / PKI RADIUS / DIAMETER
Network Management
SNMP Self-configuration capability
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Standardization
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Standardization
802.16 Standards Genealogy
802.16 (2001) 802.16c (2002)
Fixed wireless broadband for LOS systems MAC & PHY: 10 – 66 GHz
Evaluation Path
Amendment for System Profiles 10 - 66 GHz
802.16a (2003)
Amendment for N-LOS Systems Fixed wireless broadband PHY: 2 - 11 GHz
802.16f (MIBs) and 802.16g (NETMAN) planned
802.16-Revd (July 2004)
Revision PAR for 802.16, 802.16a Fixed wireless broadband System Profiles, Errata Now Approved as 802.16-2004! Amendment for Combined Fixed and Mobile wireless broadband at vehicular speeds in Licensed bands below 6 GHz
802.16e (2Q 2005)
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Standardization
802.16 Technologies
802.16 Completed Spectrum Channel Conditions Modulation Mobility Dec. 2001 10 to 66 GHz Line-of-sight only QPSK, 16 QAM and 64 QAM Fixed 802.16a / REV d 802.16a: Jan 2003 802.16 REV d: Q3 2004 < 11 GHz Non line-of-sight (NLOS) 256 OFDM, 2K OFDMA 64 QAM, 16 QAM, BPSK Fixed and Portable Selectable channel bandwidth between 1.25 and 28 MHz, with up to 16 logical subchannels 3 to 5 miles; Maximum range 30 miles based on tower height, antenna, gain and transmit power (among other parameters)
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802.16e Estimate: 2Q of 2005 < 6 GHz Non line-of-sight Same as REV d 1K/512/128 OFDMA Mobility, Regional Roaming
Channel Bandwidths
20, 25 & 28 MHz
Same as REV d
Typical Cell Radius
1 to 3 miles
1 to 3 miles
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Standardization
Mobile WiMAX vs. Fixed WiMAX
WiMAX Status
? WiMAX currently focused on fixed applications i.e. 802.16d and has growing membership (170+) ? Major telco(3G) vendors are rushing in WiMAX ? Nokia rejoined WiMAX and Samsung is the latest heavy hitter
Created Mobile Working Group focused on 802.16e under WiMAX
? Define mobility charter and structure with major stakeholders ? Activate mobility technical WG and certified WG ? Profile 802.16e standards (current D5 spec.) to WiMAX specification ? Time to market delivery of mobile wireless broadband ? Harmonize major 3G vendors with full ecosystem vendors
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Standardization
Mobile WiMAX vs. Fixed WiMAX (For Fixed Applications)
Mobile WiMAX
Access Technology Technology General Standard FFT Size Mobility support Coverage Cell Deployment Low Rate Coding Frequency Reuse pattern (FRP) Building Penetration Peak Throughput Throughput Performance (8.75MHz) (SISO) Average Throughput (Fixed application) OFDMA / TDD 802.16d + 802.16e 2048, 1024, 512, 128 Full mobility, Fixed Full coverage QPSK 1/12 1 or n ( n≥3)
Fixed WiMAX
OFDM / TDD 802.16d 256 Fixed Limited coverage BPSK 1/2 n (n≥3)
Notes
TDMA IEEE802.16-2004 = 16d Scalable OFDMA in 16e Handover in 16e Delay spread Low rate coding
No freq. planning for FRP=1 Robust FEC, Fast link adaptation, Band-AMC, Hybrid-ARQ in 16e DL : UL = 2 : 1
Mobile WiMax is > 3dB deeper than WiMax (estimated) DL: 19.97Mbps UL: 5.53Mbps DL: 18.32Mbps UL: 6.11Mbps
Mobile WiMax is > 30% higher than WiMax (estimated)
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Standardization
Mobile WiMAX vs. Fixed WiMAX
Mobile WiMAX Fixed WiMAX Notes
Header compression (ECRTP, ROHC), ErtPS in 16e Handover Broadcasting Service Power saving Provided (FBSS, Hard) Provided Awake mode Idle & Sleep mode Not provided Not provided Always Awake MBS in 16e Hand-held device in 16e
VoIP
Efficient
Bad
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Standardization
Advantages over Fixed WiMAX Mobile WiMAX encompasses fixed application
? More scalable bandwidth ? Comparable or superior to Fixed WiMAX
Mobility support
? Up to 120km/h
Enhanced Service Features
? MBS (Multicast Broadcast Service) support ? VoIP facilities ? Security
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Standardization
Samsung contributions to 802.16d/e
Samsung is a major contributor in 802.16d/e
Subchannelization, H-ARQ, MIMO/AAS, Fast BS Switching (FBSS) , QCS (Quick Connection Setup), Idle mode
IEEE 802.16 d/e Meeting
Session #31 (May ’04) Session #32 (July ’04) Session #33 (Sep. ’04) Session #34 (Nov. ’04) Session #35 (Jan. ’05)
Number of Comments Total 270 N/A 457 1973 377 Samsung 52 N/A 75 96 54
Number of Contributions Total 53 120 132 142 106 Samsung 26 42 35 30 25
Play a role as an arbitrator
Harmonize and Socialize with other participants
3G vendors (e.g., Nortel, Motorola), Intel, Runcom, etc., LDPC (TI, Nextel, LGE, ZTE, Nortel, Motorola, Intel, Runcom)
Make special interest group as Ad hoc : Handoff, Security
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Standardization
WiMAX Forum Organization
WiMAX Forum President: Ron Resnick Intel
New Groups Application WG Tom Tofigh AT&T Network WG Prakash Lyer Intel
Marketing WG Mo Shakouri Alvarion
Service Provider WG Regulatory WG Dean Chang Margaret LaBrecque Aperto Intel
Certification WG Aditya Agrawal Beceem
Technical WG Gordon Antonello OFDM-Forum OFDM-
Mobility TG Won-il Roh WonSamsung
? WiMAX Forum is preparing Mobility Deployment ? Samsung is a Board Member of WiMAX Forum ? Samsung chairs the Mobility TG and is vice-chair of Network WG
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Samsung Mobile WiMAX Solution
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802.16e Network Architecture
RAS(Radio Access Station) ACR(Access Control Router) WSM(WiMAX System Manager) AAA(Authentication, Authorization and Accounting) HA (Home Agent)
Samsung Mobile WiMAX Solution
WSM WSM
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Samsung Mobile WiMAX Solution
802.16e Network Architecture with IMS core
? ? ? ? ? ? ? ? IMS : IP Multimedia Subsystem MG / MGW : Media Gateway PTT : Push -to-Talk AS : Application Server IM : Instance Messaging CCF : Charging Collection Function HSS : Home Subscriber Server EMS : Element Management System
CCF DNS/ENUM DHCP AAA IMS Server Edge Router WSM Core Router Core Router MG Controller Core Router Core Router HSS EMS
Parlay GW PTT AS Presence AS IM AS MR System
IMS Core Network
ACR
ACR
IMS - MGW
Backhaul
RAS RAS
Backhaul
RAS
PSTN
PDA
MSS
Mobile
MSS
MSS
Subnet - 0
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? ? ? ?
MSS : Mobile Subscriber Station RAS : Radio Access Station ACR : Access Control Router WSM : WiBro System Manager
Samsung Mobile WiMAX Solution
Network Elements: WSM
Network Management Center
OSS CORBA,SNMP,CMIP (customizable)
WSM Server
NMS Interface Mgmt. Function-FCAPS GUI Network Interface Interface
SNMP ACR SNMP
Printer
IP Network
HTTP , TCP/IP SNMP
RAS
Printer
(Java/Web App. on any platform )
WSM GUI Client
RAS
Printer
Items Server Server Server Client ACR, RAS NMS
Interface 100 Base-T FE/ GE
Protocol HTTP, RMI SNMP, FTP
note EMS : SNMP Performance Data: FTP
Customizable
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Samsung Mobile WiMAX Solution
Network Elements: RAS, ACR RAS
PHY Processing, Air Resource Scheduling MAC Management Message Processing MAC PDU Processing CID Management Encryption /Decryption ACR Interface Inter-sector HO Processing
ACR
Packet Classification & Header Suppression Service Flow Management Traffic Switching/ Integration Point Handover Management Session Management RAS Interface Core Networks Interface
802.16e Access Network
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Mobile WiMAX Product Roadmap
The first Mobile WiMAX System/Terminal available 1Q ‘06
’06.1Q
Domestic Product 2.3GHz
Samsung Mobile WiMAX Solution
’06.2Q
Overseas Product 2.3/2.5/3.5GHz
‘07
Std RAS 3FA/3S, 20W RAS RAS RAN RAN Mini RAS 3FA/Omni, 20W
Universal RAS multi-FA/multisector, 20W
Campus RAS
Home RAS
Hybrid ACR ACR ACR Std. ACR
CPE CPE Terminal Terminal Phone Phone Type Type
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PCMCIA Card
External Modem
MITS
Phone
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All products, dates, plans and features are preliminary and subject to change without notice.
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