Eshwar Pittampalli, Ph.D., P.E. Alcatel- · PDF fileMay 24, 2007 All Rights Reserved ©...

All Rights Reserved © Alcatel-Lucent 2007

Eshwar Pittampalli, Ph.D., P.E.Alcatel-Lucent

All Rights Reserved © Alcatel-Lucent 2007May 24, 2007 2

* Based on 2x20 MHz FDD band allocation and 4x4 MIMO. Latency is based on a 32-bit Return Trip Transmission (RTT).VoIP capacity is dependent upon the feature set enabled and network load.

• Combines the best aspects of CDMACDMA,, TDMTDM,, andand OFDM [OFDM [and Layer Superposed (LS)and Layer Superposed (LS)--OFDMOFDM]] into a single air interface using sophisticated control and signaling mechanisms and advanced antenna techniques:− Multiple Input Multiple Output (MIMO), Space Division Multiple Access (SDMA) and Beamforming− Channel Bandwidths: Between 1.25 MHz1.25 MHz and 20 MHz20 MHz, using incremental channel bandwidth

allocations of around 150 kHz

• Will deliver ultra-high fixed, portable and mobile broadband performance*:− Forward link: up to 288 Mbpsup to 288 Mbps while mobile while mobile − Reverse link: up to 75 Mbpsup to 75 Mbps while mobile while mobile − Average network latency: less than less than 16 msec16 msec− Voice over IP (VoIP): up to 1000 simultaneous usersup to 1000 simultaneous users while mobile while mobile

• Will enable the convergence of IP-based voice, broadband data, multimedia, information technology, entertainment and consumer electronic services

• Commercial availability is expected in midmid--20092009

Ultra Mobile BroadbandUltra Mobile Broadband™™ (UMB): An Overview(UMB): An OverviewA technological breakthrough in OFDMA-based broadband servicesΦ

Φ Source: 3GPP2 and CDG

LS-OFDMA: Anotherapproach for non-orthogonal transmissions within OFDMA that does not rely on multiple antennas to suppress interference


CDMA2000: The Leading 3G TechnologyCDMA2000: The Leading 3G TechnologyThe global presence of CDMA2000 offers enormous economies of The global presence of CDMA2000 offers enormous economies of scopescopeΦ

• Up to 128128 operators have launched or are deploying 1xEV-DO networks• Up to 4545 GSM operators selected CDMA2000 to deliver 3G services

• More than 260260 operators in more than 105105 countries have deployed or are planning to deploy CDMA2000

1X EV-DORel. 0

EV-DORev. A

Commercial 227 76 10

In Deployment/Trial 30 52 34

Strong Ecosystem and Economies of ScopeStrong Ecosystem and Economies of ScopeΦ Source: 3GPP2 and CDG


Salient Features of OFDMA Salient Features of OFDMA (compared to CDMA)(compared to CDMA)

In-cell Downlink Orthogonality - No SINR “ceiling” in high SINR regions• No self-interference as in CDMA• Lower complexity than CDMA +IC (interference cancellation)

Orthogonal uplink provides low-complexity spectral efficiency gains• CDMA requires Total Interference Cancellation (TIC) to achieve similar UL performance (higher

complexity)

Enables dynamic scheduling in both time and frequency• Allows for frequency selective scheduling gain• DS-CDMA only schedules vs. time

Enables simple cell-edge interference-mitigation methods

Reduced MIMO complexity for large number of antennas (≥ 4)

Broadcast services benefits• OFDM allows for non-coherent over-the-air combining from different BTSs rather than interference• DS-CDMA requires Minimum Mean Square Error (MMSE) combining or equalization of multiple NodeBs

at the UE to achieve similar benefits (higher complexity)

Intrinsic scalability for a wide range of bandwidths/link budgets/data rates

Higher scheduling burden than DS-CDMA

No autonomous transmission unlike DS-CDMA

Higher PAR on the Uplink

OFDMA offers some advantages over CDMA in bandwidths greater thaOFDMA offers some advantages over CDMA in bandwidths greater than 5 MHzn 5 MHz


UMB: Value PropositionUMB: Value PropositionUMB offers the strongest value proposition within the UMB offers the strongest value proposition within the industryindustryΦ

Substantial Industry ValueSubstantial Industry Value

High spectral efficiency in all environments

Lower Total Cost of Lower Total Cost of OwnershipOwnership

CapacityCapacity

Robust mobility support with

seamless handoffs inherent in all aspects of UMB

designBetter user Better user experienceexperience

MobilityMobility

SpeedSpeedUltra-high data speeds in downlink and uplink across entire coverage

areaBetter user experienceBetter user experience

Large non-contiguous or

ubiquitous coverage.Lower Total Cost of Lower Total Cost of

OwnershipOwnership

CoverageCoverage

DevicesDevicesMultimode UMB devices will leverage existing

3G CDMA device selection

Economies of ScaleEconomies of Scale

EcosystemEcosystemLarge client base and experienced global suppliers.

Economies of ScopeEconomies of Scope

Lower end-to-end latency to support

delay sensitive applicationsBetter user Better user experienceexperience

LatencyLatency

TimeTime--toto--MarketMarketRevenue-generating

services become commercially available

by mid-20092009VoIPVoIP

Large numbers of VoIP calls coexist with high capacity

data services.Improved EarningsImproved Earnings

IPIP--basedbasedFlat IP-based core

network interconnectivity

Improved Improved Performance &Performance &ConvergenceConvergence



UMB: Selection of ServicesUMB: Selection of Services

User Trend:

Shift from Wired to WirelessEver increasing demand for more and higher quality videoUsers sharing content within a traditional fixed environment (wirelessthrough the home)Place-shifting of content now accessible at all times and places with wireless

UMB enables rich, IPUMB enables rich, IP--based ultra mobile broadband services in all environmentsbased ultra mobile broadband services in all environments

Shift to Multimode Converged DevicesMobile handsets are becoming multi-purpose devices

− Telephone, VoIP, push-to-talk, video telephony, etc.

− Mobile television, radio, navigation, email, banking, etc.

Wireless connection to social networks allows users to express themselves anytime, anywhere

− User-generated media

Enhanced User ExperienceEnhanced User Experience


UMB: Device SelectionUMB: Device SelectionUMB will be another mode in many of the same types of devices thUMB will be another mode in many of the same types of devices that exist at exist todaytodayΦ

Economies of ScopeEconomies of Scope

Personal Messaging

Mobile Phones

PDAs

EV-DOUSB modems

Fixed Wireless Phones

EV-DO PCexpress

Embedded Modulesfor PC Notebooks

EV-DOPC Cards

WorldModeTM

Global RoamingPhones

Entry-levelVoice-centric

Handsets

InteractiveMultimediaCE Devices

EV-DOFixed Wireless

Terminals

Public SafetyPhonesTelemetry

Devices (M2M)Watch TV

on a large screenfrom your

mobile phoneusing TV Out cables

TelevisionPhones



• Baseline Configuration: Single Input Single Output (SISO), with receive diversity

• Multiple Input Multiple Output (MIMO) configuration, up to 4x4 MIMO:

− Provides higher spectral efficiency

− Higher peak data rate

− Higher data throughput rates

• Space Division Multiple Access (SDMA)

− Reduced interference

− Better cell coverage

• Beamforming

− Reduced interference

− Improve capacity

UMB: Advanced Antenna TechniquesUMB: Advanced Antenna TechniquesUMB incorporates the latest breakthroughs in antenna designsUMB incorporates the latest breakthroughs in antenna designs

Higher Spectral Efficiency and Better Cell CoverageHigher Spectral Efficiency and Better Cell Coverage

MIMO

MIMO

SDMA

Beamforming


UMB: Network ArchitectureUMB: Network ArchitectureUMB enables an evolution to a UMB enables an evolution to a ““flatflat”” IPIP--based network architecturebased network architecture

Fewer Network Nodes, Lower Latencies and Better PerformanceFewer Network Nodes, Lower Latencies and Better Performance

InternetInternet

RNC

PDSN

RF Antennas(BTS)

EVEV--DODO

InternetInternet

Gateway

IMS

IP-basedRF Antennas

(Access Points)

IP Network (Ethernet)

PSTN


Thank You !

Eshwar Pittampalli, Ph.D., P.E. Alcatel- · PDF fileMay 24, 2007 All Rights Reserved ©...

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