Introduction to WiBro (Mobile WiMAX) - · PDF fileIntroduction to WiBro (Mobile WiMAX) ... 3G...

1©2005 Samsung Electronics

Introduction to WiBro(Mobile WiMAX)

Sep. 29. 2005

Han-Seok Kim

Samsung Electronics Co., Ltd.


Contents

Introduction to Mobile WiMAXWhy Mobile WiMAXMobile WiMAX services

WiBro in KoreaWiBro overviewWiBro project milestone

StandardizationMobile WiMAX vs. Fixed WiMAXSamsung contributions in 802.16e

Samsung Mobile WiMAX solutionNetwork architectureProduct roadmap

Research Issues

83


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.


84


Korean Telecom Market TrendIntroduction to Mobile WiMAX

TTTT

Broadband MarketBroadband Market Mobile Data MarketMobile Data Market

0.3

7.89.9

11.2 11.8 12.2

2%

26%

64%73% 77% 79%

1999 2001 2002 2003 2004June, 2005Total broadband subscriberBroadband household penetration

13,813

534

14,941

1,204

15,861

2,217

17,447

3,326

2001 2002 2003 2004Cellular revenueMobile data revenue

(Unit: Million)(Unit: US $M)

Source: MIC Source: KISDI

■ Broadband market is saturated

■ Mobile data market is rapidly growing

Extend to new biz. Segment (Wireless)

Provide new service for mobile data users( More bandwidth per user andinexpensive service charge)


Challenges in Telecom. Biz

Limited SpectrumLimited Data Speed

Unlicensed SpectrumPortability

Wireline Broadband

Enough SpeedGood Quality

Subscriber SaturationNo Mobility

WiFi Hot Spot

Good CoverageInt’l Roaming

Camera/Polyphonic Good Voice Quality

3G Success3G Challenges&

Enhancement Enhanced3G

AdvancedWi-Fi

?

Enhanced Data RateEnhanced Services

(BCMCS, PTT, VoIP, etc)

Lack of CoverageLimited Public

Network Service

Limited SpectrumCost Issue


85


Why Mobile WiMAX

Analysis of Customer Needs

WLANLimited Mobility

Limited Coverage

Needs of Enhanced Mobility,Coverage, Speed & Price advantage

Mobile WiMAX

Wireless Internet (1x+EVDO)Low Data SpeedExpensive Price

Mobility - HighPrice - HighSecurity - FairData Speed - Low

1. Ring-tone/Melody2. Game3. Music

1. Home (41 %)2. School/Work (31 %)3. In Movement (26 %)

Wireless Internet(EVDO)*

Mobility - HighPrice - LowSecurity - GoodData Speed - Fair

Mobility - LowPrice - LowSecurity - LowData Speed - High

Mobility - NonePrice -lowSecurity – GoodData Speed - High

Comparison

1. Commerce / Government2. Media / Public Safety3. VOIP / LBS/ Gaming

Similar with Broadband Internet Service

1. Information Search2. Game3. e-mail

Service

1.Enterprise2.Home residential consumer3.Lap top users, Multimedia

1. School/Work (72 %)2. Home (26 %)3. Airport ( 1 %)

1. Home (90 %)2. Company (30 %)3. PC Cafe (22 %)

Place

Mobile WiMAX **WLAN *Wired B.B. Internet *

* Source: NIDA (’04.10) ** Anticipated



Positioning of Mobile WiMAX

HighThroughput

Fixed

DSL/Cable WLAN 4G Mobile Communication

3G Mobile Communication

Mobile WiMAX

Mobility

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


86


Mobile WiMAX Services Positioning

Mobile WiMAX services position enabler

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

Low cost, mobile broadband networking

Mobility

High

BandwidthWide

xDSL

WLAN

2G

3G

802.16e

GuaranteedMobility

BroadbandInternet

Mobile WiMAX Services


MobileWiMAX

(802.16e)

Towards 4G Services

Core Technology

High Quality Streaming/

Multimedia

Voice Date Image/

Graphic

Video Data Rate

4GNG Mobile

Service

4GNG Mobile

Service

2G/2.5G3G

MobileAccess

FixedWirelessAccess

1995 2000 2005 2010

Cellular/PCS

WCDMA

Mobility

2.4GHzWLAN

5GHzWLAN

EvDo

Stationary

Pedestrian

High

Medium

OFDMAOFDMA

MIMOMIMO

SmartAnt.

SmartAnt.

• OFDMA : Orthogonal Frequency Division Multiplexing Access• MIMO : Multi Input Multi Output

802.16d


87


802.16e Business Segment

. Wireline operators- Telefonica, UPC, Telkom- mmO2, M1: Wireless DSL: Wireless Backhaul: Orange

. Mobile operator- Sprint, KDDI, SKT- SingTel: High speed data network

. Bundle service - KT/KTF: Cellular + WLAN

. Wireline incumbents- KT, BT, FT : Expanding its business to

mobile market

. Greenfield operator- New player: Service convergence

VoIP

Mobile Nomadic



802.16e Business Model

“Hotzone”

. 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)

“Mobile Broadband”

. Wireless based network convergence (DBDM terminal necessary)

- GSM, CDMA complementary- Mobile roaming market considered

Data

“WLAN + Cellular bundle”

“Alternative mobile”

. Wireline based network convergence (Supported by Single 802.16e terminal)

- IMS Core network useful

. Potential threat to mobile operator

Data +

VoIP

NomadicMobile


88


Mobile WiMAX Services

MMS + IMVoIPPTA

- PTT (Push to talk- 1:N telephony) - PTD (Push to Data - Send data during PTT)- PTV (Push to Video - 1:N Video telephony)

Messaging &Communication

AOD/ MOD

VOD

Streaming Broadcasting

Interactive Gaming

Emergency

Surveillance

Security

Database Lookup

Telematics- Traffic Info.- Location search

LoBlog- LBS + Blog

LBS

Public SafetyPersonalized Multimedia

“Anytime, Anywhere and Any device”


herehere


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


89


WiBro in Korea


WiBro overviewWiBro in Korea

The World 1The World 1stst TelcoTelco--grade commercial service grade commercial service by April 2006 in Koreaby April 2006 in Korea

WiBro is based on WiBro is based on Mobile WiMAX technologyMobile WiMAX technology and Mobile and Mobile WiMAX is fully compliant with WiMAX is fully compliant with IEEE 802.16e TDD OFDMA IEEE 802.16e TDD OFDMA StandardsStandards

WiBroWiBro is the is the ““WiWireless reless BroBroadbandadband”” service in Koreaservice in Korea

90


WiBro RegulationWiBro in Korea

Specification PolicySpecification Policy

Key RequirementsKey Requirements

▪WiBro is compliant with IEEE 802.16e standards▪WiBro is compliant with IEEE 802.16e standards

▪ 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

▪ 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


Fixed WiMAX(802.16d)

Mobile WiMAX(802.16e)

Freq: 3.5G, 5.8G, …

Ch. BW: 3.5(FDD), 7/10(TDD), …

MHz

Freq: 2.3G, 2.5G, 3.5G, …

WiBro

Freq: 2.3GCh. BW: 8.75MHz

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 positioning on WiMAX Forum

WiMAX forum profilesWiMAX forum profiles

WiBro in Korea

91


WiBro Concept

MobilityMobility MultimediaMultimedia ConvergenceConvergence UbiquitousUbiquitous

Trend

Cellular 3G

Concept of WiBro

WiBro

Mobile; ~ 60km/h

AnywhereAnytime

; Always onSeamless

High Throughput

; 1Mbps/user

Low price; Internet

flat fee

: WiBro is the stepping stone for 4G

WiBro in Korea


Aug. 2004 : Deliberation Committee of Policy

Sep. 2004 : Determination of the Selection Policy for WiBro Service Providers

Oct. 2004 : Announcement of the 2.3 GHz Bandwidth Allocation

Dec. 2004 : Request for the Business Proposal

Feb. 2005 : Selection of the WiBro Service Providers (KT, SKT)

Apr. 2006 : WiBro Service Open (Commercially)

Aug. 2004 : Deliberation Committee of Policy

Sep. 2004 : Determination of the Selection Policy for WiBro Service Providers

Oct. 2004 : Announcement of the 2.3 GHz Bandwidth Allocation

Dec. 2004 : Request for the Business Proposal

Feb. 2005 : Selection of the WiBro Service Providers (KT, SKT)

Apr. 2006 : WiBro Service Open (Commercially)

Korean WiBro Project MilestoneWiBro in Korea

92


WiBro/ IEEE 802.16e Standardization Status

Issue802.16e/D5

Issue802.16e/D6

Issue802.16e/D7

StandardRatification

Sep. 2004 Feb. 2005 April. 2005 Oct. 2005

WiBro Standardization Roadmap (by TTA)WiBro Standardization Roadmap (by TTA)

IEEE 802.16e Standardization Roadmap (by IEEE)IEEE 802.16e Standardization Roadmap (by IEEE)

• 802.16 d/e

Phase I Phase I Rev. Phase II

June 2004 Oct. 2004 4Q ‘04 ~ 4Q ‘05

WiBro

• 802.16 d/e

WiBro

• IOT Profile- Profile Statement(’05.1Q)- Spec Work (’05.2Q)- Spec completion (’05.3Q)

Select the IEEE 802.16e for the baseline of WiBro standardization (’04.July)

WiBro in Korea


WiBro Business Status in Korea

OperatorsKT, SKT

Commercial Service : KT(April '06)Spectrum

2300MHz ~ 2327MHz2331.5MHz ~ 2358.5MHz2363MHz ~ 2390MHz

OperatorsKT, SKT

Commercial Service : KT(April '06)Spectrum

2300MHz ~ 2327MHz2331.5MHz ~ 2358.5MHz2363MHz ~ 2390MHz

WiBro in Korea

93


Specification - Physical Layer

Frequency Band : 2.3 GHzChannel Bandwidth : 9MHz Multiple Access : TDD/OFDMAModulation : QPSK, 16QAM, 64QAM(DL Only)Channel Coding : CTC(Convolutional Turbo Code), CCKey Features : AMC, H-ARQ, etcFrame Length : 5msecMaximum Data Rate : DL-19.97 Mbps, UL-5.53 Mbps RAS Synchronization : GPSCell Coverage : urban ~ 1Km

WiBro in Korea


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-orientedSupports header suppressionARQAwake mode / Sleep mode / Idle modeQCS (Quick Connection Setup)Handover– MBB(Make-Before-Break), BBM(Break-Before-Make)– FBSS(Fast BS Switching)

Specification - MAC Layer (1/3)WiBro in Korea

94


Specification-Network Layer

IP version– IPv4– IPv6

IP QoS– Diffserv– Packet classification and mapping to MAC transport connectionMobility– L2 mobility for seamless handover– Mobile IPAuthentication/Security– EAP / PKI– RADIUS / DIAMETERNetwork Management– SNMP– Self-configuration capability

WiBro in Korea


Standardization

95


802.16a(2003)

Amendment for N-LOS SystemsFixed wireless broadbandPHY: 2 - 11 GHz

802.16(2001) Fixed wireless broadband for LOS systems

MAC & PHY: 10 – 66 GHz

802.16c(2002)

Amendmentfor System Profiles

10 - 66 GHz

802.16-Revd(July 2004)

Revision PAR for 802.16, 802.16aFixed wireless broadband System Profiles, ErrataNow Approved as 802.16-2004!

802.16e(2Q 2005)

Amendment for Combined Fixed and Mobilewireless broadband at vehicular speeds in Licensed bands below 6 GHz

802.16f (MIBs)and 802.16g

(NETMAN) planned

802.16 Standards GenealogyEv

alua

tion

Path

Standardization


802.16 Technologies

1 to 3 miles

Same as REV d

Mobility, Regional Roaming

Same as REV d1K/512/128 OFDMA

Non line-of-sight

< 6 GHz

Estimate: 2Q of 2005

3 to 5 miles; Maximum range 30 miles based on tower height, antenna, gain and transmit power (among other parameters)

Selectable channel bandwidthbetween 1.25 and 28 MHz,with up to 16 logical sub-channels

Fixed and Portable

256 OFDM, 2K OFDMA64 QAM, 16 QAM, BPSK

Non line-of-sight (NLOS)

< 11 GHz

802.16a: Jan 2003802.16 REV d: Q3 2004

1 to 3 milesTypical Cell Radius

20, 25 & 28 MHzChannel Bandwidths

FixedMobility

QPSK, 16 QAM and 64 QAMModulation

Line-of-sight onlyChannel Conditions

10 to 66 GHzSpectrum

802.16a / REV d 802.16e

Dec. 2001Completed

802.16

Standardization

96


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 802.16eunder 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

Standardization


BPSK 1/2QPSK 1/12Low Rate Coding

Robust FEC, Fast link adaptation, Band-AMC,

Hybrid-ARQ in 16e

Mobile WiMax is > 3dB deeper than WiMax(estimated)

Building Penetration

No freq. planning for FRP=1 n (n≥3)1 or n ( n≥3)

Frequency Reuse pattern (FRP)

Delay spreadLow rate coding

Limited coverageFull coverageCoverage

Handover in 16eFixedFull mobility, FixedMobility support

CellDeployment

Mobile WiMax is > 30% higher than WiMax(estimated)

Average Throughput (Fixed application)

Scalable OFDMA in 16e

IEEE802.16-2004 = 16d802.16d802.16d + 802.16eStandard

DL : UL = 2 : 1DL: 18.32MbpsUL: 6.11Mbps

DL: 19.97Mbps UL: 5.53Mbps

Peak Throughput(SISO)Throughput

Performance(8.75MHz)

TDMAOFDM / TDDOFDMA / TDDAccess TechnologyTechnology

General2562048, 1024, 512, 128FFT Size

Fixed WiMAX NotesMobile WiMAX

Mobile WiMAX vs. Fixed WiMAX (For Fixed Applications)

Standardization

97


Not providedProvided(FBSS, Hard)Handover

MBS in 16eNot providedProvidedBroadcasting Service

Hand-held device in 16eAlways AwakeAwake modeIdle & Sleep modePower saving

Header compression (ECRTP, ROHC),

ErtPS in 16eBadEfficientVoIP

Fixed WiMAX NotesMobile WiMAX

Mobile WiMAX vs. Fixed WiMAXStandardization


Mobile WiMAX encompasses fixed applicationMobile WiMAX encompasses fixed application

Advantages over Fixed WiMAX

▪ More scalable bandwidth ▪ Comparable or superior to Fixed WiMAX▪ More scalable bandwidth ▪ Comparable or superior to Fixed WiMAX

Mobility supportMobility support▪ Up to 120km/h▪ Up to 120km/h

Enhanced Service FeaturesEnhanced Service Features▪ MBS (Multicast Broadcast Service) support ▪ VoIP facilities▪ Security

▪ MBS (Multicast Broadcast Service) support ▪ VoIP facilities▪ Security

Standardization

98


Samsung contributions to 802.16d/e

Samsung is a major contributor in 802.16d/eSubchannelization, H-ARQ, MIMO/AAS, Fast BS Switching (FBSS) ,

QCS (Quick Connection Setup), Idle mode

Play a role as an arbitratorHarmonize 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

2510654377Session #35 (Jan. ’05)

30142961973Session #34 (Nov. ’04)

3513275457Session #33 (Sep. ’04)

42120N/AN/ASession #32 (July ’04)

265352270Session #31 (May ’04)

SamsungTotalSamsungTotal

Number of ContributionsNumber of Comments IEEE 802.16 d/eMeeting

Standardization


WiMAX Forum Organization

Marketing WGMarketing WGMo Mo ShakouriShakouri

AlvarionAlvarion

Service Provider WGService Provider WGDean ChangDean Chang

ApertoAperto

Regulatory WGRegulatory WGMargaret Margaret LaBrecqueLaBrecque

IntelIntel

Certification WGCertification WGAdityaAditya AgrawalAgrawal

BeceemBeceem

Technical WGTechnical WGGordon Gordon AntonelloAntonello

OFDMOFDM--ForumForum

WiMAX ForumPresident: Ron Resnick

IntelApplication WGApplication WG

Tom Tom TofighTofighAT&TAT&T

Network WGNetwork WGPrakashPrakash LyerLyer

IntelIntel

New Groups

Mobility TGMobility TGWonWon--ilil RohRohSamsungSamsung

• 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

• 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

Standardization

99


Samsung Mobile WiMAX Solution


802.16e Network Architecture

WSM

WSM

RAS(Radio Access Station)ACR(Access Control Router) WSM(WiMAX System Manager)AAA(Authentication, Authorization and Accounting)HA (Home Agent)


100


802.16e Network Architecture with IMS core

EdgeRouter

RAS

ACR

IMS Core Network

ACR

PDA

RAS

WSM

RAS

Subnet - 0 Subnet - 1

MSS MSSMobile MSS • MSS : Mobile Subscriber Station

• RAS : Radio Access Station• ACR : Access Control Router• WSM : WiBro System Manager

Backhaul Backhaul PSTN

IMS - MGW

Parlay GW

PTT AS

Presence AS

IM AS

HSSCCF EMS

AAA

DNS/ENUM

DHCP

IMS Server

MG Controller

Core Router

Core Router

Core Router

Core Router

• 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

MRSystem



Network Elements: WSM

SNMP, FTP

HTTP, RMI

Protocol

Customizable

FE/ GE

100 Base-T

Interface

Server NMS

EMS : SNMPPerformance Data: FTPServer ACR, RAS

Server Client

noteItems

Network Management Center

Printer

PrinterPrinter

CORBA,SNMP,CMIPWSM Server

SNMP

HTTP ,TCP/IP

NMS Interface

GUIInterface

NetworkInterface

Mgmt. Function-FCAPS

WSM GUI Client(Java/Web App. on

any platform )

SNMP

(customizable)OSS

IP Network SNMP

RAS

ACR

RAS


101


Network Elements: RAS, ACR

RASRAS

PHY Processing, Air Resource Scheduling MAC Management Message ProcessingMAC PDU ProcessingCID ManagementEncryption /DecryptionACR InterfaceInter-sector HO Processing

ACRACR

802.16e Access Network

802.16e Access Network

Packet Classification & Header SuppressionService Flow

ManagementTraffic Switching/ Integration PointHandover ManagementSession ManagementRAS InterfaceCore Networks Interface



Mobile WiMAX Product Roadmap

Universal RASmulti-FA/multi-

sector, 20W

RANRANRAN

RASRASRAS

ACRACRACR

TerminalTerminalTerminal

’06.1QDomestic Product

2.3GHz‘07

All products, dates, plans and features are preliminary and subject to change without notice.

The first Mobile WiMAX System/Terminal available 1Q The first Mobile WiMAX System/Terminal available 1Q ‘‘0606

Campus RAS

Home RAS

Hybrid ACR

Std RAS3FA/3S, 20W

Mini RAS3FA/Omni, 20W

Std. ACR

’06.2QOverseas Product

2.3/2.5/3.5GHz

CPECPECPE

PhoneType

PhonePhoneTypeType

PCMCIA Card

MITS Phone

External Modem


102


Research Issues


Research Issues

ARQImpact of ARQ parameters such ARQ block size, max number of retransmissionsIP-aware MAC such as ARQ operation based on not only ARQ block but also IP packetvs. H-ARQ

SchedulerLess complex, more efficient, better QoS

HandoverLess overhead, shorter break time

Etc

103


Thank You!Thank You!

104

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