WiMAX e LTE Duas Tecnologias de 4a Geração · WCDMA R99 CDMA1x GPRS Efficiency Gain HSDPA WiMAX LTE. 2006 2010 2012 2014 WiMAX* LTE* ... LTE Requirements vs. WiMAX today < 100ms

WiMAX e LTEDuas Tecnologias de 4a Geração

Jose AlmeidaMotorolaCCTCI 28 de Maio de 2009

The Future of Telecomm

Pyramid Research

Novo Foco do Mercado

What is 4G?

Yankee group /2006

Main Wireless Broadband Opportunities,according to Operators

Spectrum Efficiency

Spectral Efficiency (bps/Hz/sector): Web Browsing Traffic, Fully-Loaded System

0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

WCDMA R99

CDMA1x

GPRS

Efficiency Gain

HSDPA

WiMAX

LTE

2006 2010 2012 2014

WiMAX*

LTE*UMTS / HSPA

GSM

CDMA(2G/3G/UMB)

$ Billions

0

10

20

30

40

50

60

70

80

Two principal mobile broadband platforms for the ne xt decade…

WiMAX & LTE

WiMAX

LTE

2007/8 2011/12

OFDM Air Interface

Light Infrastructure Design

Advanced Antennas and SA Technology

Supported in Many Spectrum Bands

All IP Networking

2008

* Includes fixed-nomadic and mobi le

Source : NAT, Rysavy Research,, CDG-QCOM

5 10 20

Downlink1x1

Downlink2x2

Carrier BW(MHz)

LTE

HSPA

HSPA+

Downlink4x4

1.25

WiMAX

UMB

48

2.25

2412

1.9 3.7 7.0

13.9

7.85 12.7 15.7 31.4

2.26

0.8

1.3 1.45

8.1 6.3512.7

1.13 3.17UplinkNo MIMO/64QAM

Maximum Speeds (sector)

Mbps

WiMAX e LTE tecnologias de 4G

• WiMAX e LTE têmperformance muito similar.Difereças de throughputderivam de:– TDD vsus FDD– Larguras de Banda diferentes– MIMO

• Se ajustado pelo fatoresacima a performance deambas as tecnologias difereem poucos pontos percentuais.

• LTE e WiMAX compartilham omesmo conjunto detecnologias:

• Acesso de Rádio – NovasModulações, Codigos,Correções de Erro, Estratégias– OFDM – Downlink, SCDMA – Uplink– HARQ, TurboCodes, etc

• Arquitetura Full-IP– Sem voz por circuito,– Todos serviços baseados em QoS

Novas tecnologias de Antenas– MIMO– Smart Antennas WiMAX

LTE Requirements vs. WiMAX today

< 100ms

2-3x HSUPA

2-3x HSUPA

50

< 5ms

3-4x HSDPA

3-4x HSDPA

100

LTE

< 20msmsecUser Plane Latency

~2x HSUPAMbpsUL Edge User Throughput

~2x HSUPAbps/Hz/sect.UL Spectral Efficiency

msec

Mbps

bps/Hz/sect.

bps/Hz/sect.

Mbps

Units WiMAXParameter

< 100msControl Plane Latency

16UL Peak Rate

1.5-2x HSDPADL Spectral Efficiency

1.5-2x HSDPADL Edge User Throughput

80DL Peak Rate

WiMAX capacity numbers are best case estimatesWiMAX capacity quoted for 28 symbols DL, 24 symbols UL

Economic Advantage

Relative T

otal Cost o

f Ow

nership

Data Usage per User per Month (GB)

0

2

4

6

8

10

12

14

0.5 1 2 5 10 20

DoRA

HSxPA

LTEWiMAX

Higher population density = lower inflection point

Atlanta~1,500/km2

Relative Total Cost of Ownership Comparison

Sydney~2,100/km2

Dubai~410/km2

Chicago~4,800/km2

4G networks offer significant cost advantage over 3 G technologieswhen sufficient bandwidth demand for data and multi -media exists

Assumptions: * Population density of 1,000 pop/km2,15% subscriber penetration * Per subscriber data usage (1 busy hour, 7 non-busy hours per day) based on 15k subscribers in 100 km^2 * Spectrum usage normalized across technologies; cell edge data rates DL 1 Mbps, UL 256 Kbps * Backhaul costs assume operator uses lowest cost solution (owned wireless) * Note: Data Usage/Sub/Month will vary with the population density of the city for a given subscriber penetration assumption

Wireless Broadband Drivers

Reasonable Use Profiles - 2011

APPSD ays/ Mo

KB /D ay

Hrs /day

K bps K B / Mo

VoIP on Mobile 30 0.2 64 172,800

Outlook (10 emails + 5 with attachments) 30 10500 315,000

Outlook (10 emails + 5 with attachments) 30 10500 315,000

Live Messenger (assuming it replaces SMS ) 30 10.0 3 405,000

MySpace/Facebook, profi le update, v ideo stream up and dow n

10 0.3 128 172,800

General B row sing, Music + News sites , etc… 20 1.0 100 900,000

Home recorded movie on hard drive set top box / Sling / Computer

6 2.0 1000 5,400,000

Youtube, News clip 20 0.5 256 1,152,000

Radio s treaming and home stored music 20 2.0 128 2,304,000

11.1Gbytes / Month

APPSD ays/ Mo

KB /D ay

Hrs /day

K bps K B / Mo

VoIP on Mobile 30 0.1 64 86,400

Outlook (20 emails + 5 with attachments) 4 11000 44,000

Outlook (20 emails + 5 with attachments) 30 11000 330,000

Live Messenger (assuming it replaces SMS ) 30 10.0 3 405,000

MySpace/Facebook, profi le update, v ideo stream up and dow n

5 0.5 128 144,000

General B row sing, Music + News sites , etc… 10 0.5 100 225,000

Home recorded movie on hard drive set top box / Sling / Computer

4 2.0 1000 3,600,000

Youtube, News clip 10 0.3 256 345,600

Radio s treaming and home stored music 15 1.0 128 864,000

6.0Gbytes / Month

APPSD ays/ Mo

KB /D ay

Hrs /day

K bps K B / Mo

VoIP on Mobile 30 0.5 64 432,000

Outlook (5 emails + 3 with attachments) 20 6250 125,000

General B row sing, Price check + N ew s s ites , etc…

20 1.0 100 900,000

Youtube, News clip 20 0.5 256 1,152,000

Radio s treaming and home stored music 4 0.5 128 115,200

2.7Gbytes / Month

TypicalMobile only

College StudentLaptop + Mobile

Urban ProfessionalLaptop + Mobile

Source: ComScore Inc

APPSD ays

/ Mo

KB /

D ay

Hrs

/dayK bps K B / Mo

VoIP/Conference on Mobile 20 1 64 576,000

VoIP on Mobile 30 0.1 65 87,750

Netmeeting w hen O ut of O ffice 4 0.5 500 450,000

Outlook (100 emails + 25 with attachments) 4 55000 220,000

Outlook (100 emails + 25 with attachments but only 5 attachments download)

30 16000 480,000

Communicator 4 8 3 43,200

Linked- In, profile update, video s tream up and dow n

2 1 128 115,200

Competitor sites, N ew s s ites , etc… ( Bur sty tr affic ) 4 1 100 180,000

Home recorded movie on hard drive set top box / Sling / Computer

2 2 1000 1,800,000

Youtube, News clip 10 0.5 256 576,000

Radio s treaming and home stored music 10 1 128 576,000

5.1Gbytes / Month

Road WarriorLaptop + Mobile

5.1GB/month 6GB/month

11.1GB/month 2.7GB/month

Wireless Internet use follows WiredInternetby 3-5 years

75% of users watch online video*YouTube = 27% of internet traffic

Short clips - Perfect for mobile use15min of daily YT = 1.2GB/month

Economic Advantage

($200)

($150)

($100)

($50)

$0

$50

$100

$150

$0 $40 $80$20 $60

WiMAX

DOrAHSPA

LTE & 16m

Typical Mobile Network DimensioningEdge of Cell : 256kbps DL, 20kbps UL

NP

V (

Mill

ions

)4G provides economically favorable meansto deliver true, mobile broadband servicesAt price points meaningful for mass market adoption

Chicago

Price tooLow

Price tooHigh

90%90%100%Coverage

91521 InDoor Loss dB

99787518Subs x1000

57005000100POPs x1000

4625101510Area km2

SuburbanUrbanDense Urban

90%90%100%Coverage

91521 InDoor Loss dB

99787518Subs x1000

57005000100POPs x1000

4625101510Area km2

SuburbanUrbanDense Urban

Same traffic and price sensitivity curves for all modelsSpectrum exhaustion leads to cell splitting

O Que Orienta a Escolha?

Para LTE

• Manutenção do modelo de negócio de telefonia móvel

• Acesso ao Espectro

Para WiMAX

• Time-to-Market– Atendimento a demanda por banda larga existente já

• Foco em Banda Larga – Mobilidade é um bonus

Uso do Espectro

FDD

FDD

FDD

FDD

FDD

FDD

FDD

FDD

FDD

TDD

TDD

TDD

TDD

2500 MHz

2100 MHz

1900 MHz

1800 MHz

1700 MHz

1500 MHz

900 MHz

850 MHz

800 MHz

LTE650 MHz

3700 MHz

3500 MHz

2500 MHz

2300 MHzWiMAX

590 MHz

LTE spectrum focused on traditionalcellular bands

Appeal for many cellular operators

May require re-mining spectrum to allow build out

WiMAX spectrum is new, underutilized,and less costly

Offers access to new wireless players…

& existing operators looking for time to market

� Both require significant spectrum

� Both can be FDD or TDD

Spectrum Availability for WiMAX and LTE

3GPP New Spectrum2.5 GHz - Potential for up to 20MHzper operator

Digital Dividend- WRC-07 madepositive steps towards makingspectrum available for future LTEdeployments. .

LTE 3GPP Spectrum View

925 - 960880 - 915GSM 900

869 - 894824 - 849Cellular 850

2110 - 21701920 - 1980UMTS Core

2110 - 21551710 - 1755AWS

2620 - 26902500 - 2570IMT Extension

776 - 793746 - 763700 MHz

1930 - 1990

1805 - 1880

Downlink(MHz)

470 - 854

1850 - 1910

1710 - 1785

Uplink(MHz)

Digital Dividend

PCS 1900

GSM 1800

CarrierBancwidth

(MHz) Band

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

1.25 5 10 15 20

2.6 GHz SpectrumAuctions

2009 2010 20112H

2007 2008

UK

SwedenNorway

Austria

Germany

Hong Kong

Completed

Planned

Future

France

Italy

Netherlands

Portugal

Spain

Belgium

Finland

Paired Spectrum(FDD) 2 x 70 MHz

UnpairedSpectrum

(TDD) 50 MHz

2500MHz

2570MHz

2620MHz

2690MHz

2.6 GHz ITU Plan

Not the only option…

JapanCompleted 2007

2575MHz

2625MHz

2545MHz

UnpairedSpectrum

(TDD) 30 MHz

2595MHz

UnpairedSpectrum

(TDD) 30 MHz

UnpairedSpectrum

(TDD) 10 MHz

2500MHz

26902690MHzMHz

KDDI/Intel Consortium Wilcom

IncumbentOperators purchaseTDD spectrum for

WiMAX

United StatesCompleted 2004

2614MHz

Unpaired Spectrum(TDD) 12 MHz

2500MHz

Sprint/Nextel andClearwire acquireunpaired BRSspectrum forWiMAX

2690MHz

2624MHz

2602MHz

2673.5MHz

Unpaired Spectrum(TDD) (3) 16.5 MHz Blocks

Total= 49.5 MHz

Taiwan 2.6 GHz AuctionCompleted July 2007

25002500MHzMHz

26252625MHzMHz

26902690MHzMHz

26602660MHzMHz

25652565MHzMHz

25952595MHzMHz

First InternationalTelecom

Global On Tecom-VIBO

Far EasToneTelecommunications

(Incumbent) Tatung Vastar Cable

• New Entrantspurchase unpairedspectrum for WiMAX

• One Incumbentunpaired pairedspectrum for WiMAX

Unpaired SpectrumUnpaired Spectrum(TDD) 30 MHz per(TDD) 30 MHz per

OperatorOperator

Paired Spectrum(FDD) 2 x 40 MHz

New ZealandCompleted 2007

2500MHz

2575MHz

2620MHz

2690MHz

2520MHz

2540MHz

2640MHz

2660MHz

Craig Wireless

Craig Wireless

TelecomNZ

TelecomNZ

VodafoneNZ Blue Reach

UnpairedSpectrum

(TDD) 35 MHz

UnpairedSpectrum

(TDD) 30 MHz

• Incumbents and newentrants purchasepaired spectrum

• Incumbent and newentrants purchaseunpaired spectrum

Scenario Analysis

Frequency Reuse

-1000 0 1000 2000 3000 4000 5000 6000-1000

0

1000

2000

3000

4000

5000

6000

x-d im ension (m ete r)

y-d

imen

sio

n (m

ete

r)

0 1000 2000 3000 4000 5000 6000 7000 8000 90000

1000

2000

3000

4000

5000

6000

7000

8000

9000

x-dime nsion (mete r)

y-d

ime

nsi

on

(me

ter)

1x3x3

1x4x2

-10 00 0 10 00 2 00 0 30 00 4 00 0 50 00 6 00 0-1 00 0

0

1 00 0

2 00 0

3 00 0

4 00 0

5 00 0

6 00 0

x-dime ns ion (me ter)

y-d

ime

nsio

n (

me

ter)

1x3x1

LTE

WiMAX

Paired Spectrum(FDD) 2 x 70 MHz

UnpairedSpectrum

(TDD) 50 MHz

A

2500MHz

2570MHz

2620MHz

2690MHz

4 Operator Scenario

B C D A B C D

4.66MHz (?)1455.8MHz(5MHz)

17.5MHz47.7MHz(5MHz)

23.33

Spectrum perCarrier

(LTE profile)

Spectrum perOperator

Number ofOperators

Source : NAT, Rysavy Research,, CDG-QCOM

5 10 20

Downlink1x1

Downlink2x2

Carrier BW(MHz)

LTE

HSPA

HSPA+

Downlink4x4

1.25

WiMAX

UMB

48

2.25

2412

1.9 3.7 7.0

13.9

7.85 12.7 15.7 31.4

2.26

0.8

1.3 1.45

8.1 6.3512.7

1.13 3.17UplinkNo MIMO/64QAM

Throughput per sector

Mbps

Máximo LTE

Brasil

Máximo WiMAX

BrasilMáximo WiMAX

BrasilMáximo WiMAX

Máximo WiMAX

Considerações sobre LTE• Primeiros sistemas aparecerão nos EUA– Verizon 2011 - 700MHz– AT&T - 700MHz / 1900MHz– Forte pressão por re-uso de bandas existentes

• Europa sinaliza sistemas LTE a partir de 2013 – Crise econômica é umdos culpados (Barcelona 2009)

• Brasil – Possiveis implementações em 2013 / 2015

• Implementação de LTE será bastante disruptiva para operadoras– Nova Tecnologia de Rádio – Novas BTSs– Nova Tecnologia de Core – Todo IP– Dispositivos móveis complexos – GSM / HSPA / LTE

– Complex mobile devices – GSM / HSPA / LTE– A Maior frequencia usada numa implementação móvel

Em Resumo

LTE• Sistemas comerciais em:

• 1 a 3 anos no mundo (EUA inicialmente)• 3 a 6 anos no Brasil – Capacidade de Investimento das operadoras

• Deverá estar disponível em várias bandas• Reuso de espectro• Novas Bandas

•Manutenção do modelo de negócios existente

WiMAX• Foco em Banda Larga Fixa / Nomádica• Atendimento da Demanda reprimida existente no mercadojá.

Conclusões

A discussão de uso de 2.5GHz é menos técnica /regulatória que de política de comunicações

• Quando o investimento será feito?• Quando será provido serviço à população ?• Qual será o modelo de negócios?• Quem serão os atores?

Obrigado