gajinder singh vij cape town, march 12, 2008 - cdg.org operation enabled throughout the cell...

CDMA2000 Mobile Broadband DemystifiedGajinder Singh Vij

Cape Town, March 12, 2008

2QUALCOMM Proprietary

A Well Established Mobile Broadband Evolution Path

2006 2007 2008 2009 2010 +1999

CDMA CDMA/TDM OFDM OFDMA

1 – UMB (Ultra Mobile Broadband) - Previously referred to as Rev C LBC

2 – Peak rates scalable with number of carriers – standard supports up to 15 carriers. Upper range highlights introduction of 64-QAM (1 RF carrier – 4.9 Mbps peak) 3 – Expected rates for 20 MHz, FDD, 4x4 MIMO

4 – 1.25 MHz option also expected to be in the standard

5 – TDD mode not expected to be defined in first release of standard

DL: 2.4 Mbps peakUL: 153 kbps peak

– All-IP Services– Broadband

downloads

DL: up to 288 Mbps peak3

UL: up to 75 Mbps peak3DL: 5.3 Mbps peakUL: 1.8 Mbps peak


DL: 6.2 – 73.5 Mbps peak2

UL: 3.6 – 27 Mbps peak 2DL: 3.1 Mbps peakUL: 1.8 Mbps peak

– Highly optimized OFDMA solution

– 1.25-20 MHz carrier bandwidth4

– VoIP– FDD & TDD5 Modes– MIMO & SDMA Support

– K=3 frequency re-use– VoIP

– Optimized OFDMA Solution

– All-IP Services

– Broadband uploads– Low Latency– Advanced QoS – VoIP, PTT an d VT– OFDM Multicast

– Multi-Carrier Rev A– Lower delays and higher data rates– Software Upgrade

EV-DOREV B

EV-DOREV A

EV-DOREL 0

CDMA20001X

UMB1Rev 0FLASH-OFDM

Rev 1FLASH-OFDM (Pre- UMB)


EV-DO has greatest economies of scale

EV-DO scale is greater than HSDPA EV-DOrA scale is greater than HSUPA

Sources: CDG, QCT Marketing, Informa 2007

CDMA will remain competitive to OFDMA Technologies


0%200%400%600%800%

1000%1200%1400%1600%

Urban [%] 100% 254% 246% 1406%Suburban [%] 100% 211% 205% 1052%Rural [%] 100% 173% 167% 843%

DO Rev A 850 DO Rev A 2100 HSUPA 2100 802.16 TDD 2:1 2500

Coverage Advantage of DO Rev A in 800MHz

Note: WiMAX has the following link budget issues:• Inefficient uplink pilot design leads to 4dB loss in link budget compared to 3G• Lack of soft handoff causes 2dB link budget loss• TDD (2:1) suffers from 4dB worse link budget compared to FDD• Higher frequencies (2.5GHz) also lead to higher number of cell sites

* Assuming a cell-edge target data-rate of 64Kbps @ 1% PER on the UL

Rel

ativ

e Si

te C

ount

• Rev A in 800MHz results in less than half the number of cells of HSUPA in 2.1GHz for urban and suburban environments


Rev B: SW Upgrade to Existing Rev A Networks• Easy Software Upgrade

– S/W upgrade to Rev A BTS and BSC*– Leverages existing assets – cell sites, RAN and core network– Enables selective deployment in high data demand areas– Devices seamlessly hand-off across coverage

• Based on Rev A Proven Technology– Leverages large EV-DO vendor community

• Forward and backward compatible devices– Leverages and augments existing DO device portfolio

BTS BTS BTSBTS

1st Carrier2nd Carrier3rd Carrier

Coverage Area

* Assuming BTS is already enabled to support more than one rev A carrier


Rev B Multi-carrier Increases RL Data Rates

• Multi-carrier operation enabled throughout the cell coverage– Typical urban cell density enables MC RL even at the edge of the cell

*2 Rx. Ant at BTS, Channel E, 129dB max path loss

Dense regions, 1km BTS-BTS spacing

~1Mbps edge data

rate

~1.8Mbps avg data rate


Spectral Efficiency: 3G Systems Ahead of WiMAX

00.2

0.4

0.60.8

1

1.2

FL Spectral

Efficiency(bps/Hz)

1 Channel Mix, 2km BTS-BTS Dist., 2 Rx Ant at BTS and at AT, equalizer, 140dB max path loss, 16 users full buffer. 2 Channel mix, 2.8km BTS-BTS Dist., 2 Rx Ant at BTS and at AT, equalizer, 140dB max path loss, 20 users full buffer. Rel 7 includes 2x2 MIMO.

0

0.2

0.4

0.6

0.8

Rev A Rel 6 Rel 7 (MIMO) WiMAX

Rev A/Bno IC

Rev B w/ IC

Rel 6no IC

Rel 7 w/ IC

WiMAX

RL Spectral

Efficiency(bps/Hz)

EV-DO UMTS

0.95 1.041.14

0.54

0.42

0.25

0.470.31

1.05

Rev B

0.68

UMTS2EV-DO1


C2K Provides A Compelling Evolution Path

CDMA CDMA/TDM OFDM

1– Voice capacity for single 1.25MHz carrier. Range reflects the mix of devices being single rx and dual rx capable. Numbers are preliminary and subject to change.

2–Lower range corresponds to 3x Rev A carriers using 16QAM (CSM6800). Upper range corresponds to 3x Rev B carriers using 64-QAM(CSM6850). Peak rates scalable with number of carriers. Initial MSM implementation supports 3x. Standard supports up to 15 carriers.

3– Peak rates highlights introduction of DL 64-QAM+MIMO (~8.6 Mbps DL peak per carrier) and UL 16-QAM (3.1 Mbps UL peak per carrier). Peak rates scalable with number of carriers. Quote is for 4 EV-DO carriers, reflecting possible initial implementation. Standard to support up to 15 carriers.


– All-IP Services– Broadband

downloads– CDMA Multicast

DL: 9.3 – 14.7 Mbps peak2

UL: 5.4 Mbps peak (3x)DL: 3.1 Mbps peakUL: 1.8 Mbps peak

– Broadband uploads– Low Latency– Advanced QoS – VoIP, PTT and VT– OFDM Multicast (SFN)

– Multi-Carrier Rev A– Lower delays and higher data rates– Software Upgrade

EV-DOREV B

EV-DOREV A

EV-DOREL 0

EV-DOEnhancements

– 2x2 MIMO– Latency Enhancements– Femtocell enhancements

DL: 34.4 Mbps peak3

UL: 12.4 Mbps peak 3

80 – 120 calls per sector 1

1xEnhancements

– RL IC– Advanced QLIC– Early termination

CDMA20001X

– EVRC-B– FL QLIC– RX Diversity

Voice capacity increase: 35 to 55 calls per sector


0

20

40

60

80

100

120

QC Continues to Enhance CDMA 1x Voice (1)

55

Adds•QLIC

Adds•Smart blanking of 1/8th

rate frames•More efficient closed-loop power control •RL early termination•FL early termination•QOF (3)

35

Adds•Advanced QLIC •RLIC•QOF (2)

Today•EVRC•Single RX

New CSM+ New MSM

49

Adds •EVRC-B

Available Today with Current Roadmap

+ New Air Interface Features

55 55 60

90

120

80

dual

RX

sing

le R

X

sing

le R

Xdu

al R

X

sing

le R

Xdu

al R

X

sing

le R

Xdu

al R

X

(1) Capacity estimates based on a combination of simulations and analysis of proposed changes. Numbers are subject to change.

(2) Only needed for dual rx devices(3) Needed for all devices

Voic

e C

apac

ity p

er S

ecto

r (1.

25M

Hz)


Voice Capacity Comparison in 10 MHz

0

200

400

600

800

Today1 Future2 Today3 Future4

cdma 1x UMTS

1. Single-antenna device with EVRC vocoder. Capacity shown has been validated in the field.2. Dual-antenna devices with 4GV vocoder, QLIC, RL IC, QoF, FL and RL early termination, efficient closed loop power

control, and smart blanking of 1/8 rate frames. Results based on simulation and estimated analysis. Existing standard combined with implementation enhancements lead to 630 calls per sector.

3. WCDMA R99, AMR 12.2 vocoder. Current field measurements actually show lower capacity than simulated.4. HSPA+, AMR 12.2 vocoder, Rx diversity, DTX, UL IC, E-FDPCH, HS-SCCH-less, F-DPCH. Result based on simulations.

130

380

840

245Cal

ls p

er S

ecto

r1x Voice Capacity Advantage over UMTS Continues to Widen

Evolution based on well proven circuit-switched framework

UMTS packet-switched framework yet to be validated

in mobile environments


DO Enhancements Further Increase Performance

• 2x2 MIMO Improves Peak Rate to 25.8 Mbps in 3 Carriers• Optimizations for Pico/Femto Deployments• Interference Management Improves Performance

FemtoPicoMacro

FemtoPico

PicoPicoMacro

Pico

FemtoPico

Femto


Pictorial Description of Network Evolution

CDMA BTS Digital Shelf

800 MHz Spectrum

1. C2K 1x Network

2. Add EVRC-B, QLIC and rx diversity

Higher Capacity

800 MHz Spectrum


1x carriers (using CSM5000/6700)

DO carriers (using CSM6800)DO carriers (using CSM6850 or later)

1x carriers (using 1x enhancements CSM)

No change


Pictorial Description of Network Evolution (2)


800 MHz Spectrum

3. Deploy EV-DO

4. Deploy multi-carrier

Higher Capacity

800 MHz Spectrum





Higher Capacity

multicarrier sw


Pictorial Description of Network Evolution (3)


800 MHz Spectrum

5. Deploy 1x enhancements

6. Add additional DO for data growth• Enhanced channel cards (e.g. CSM 6850 or later)

Higher Capacity

800 MHz Spectrum





Higher Capacity


• EV-DO Provides the Foundation for Broadband Access

• Multiple Rev A carriers provide higher capacity for voice/data, and naturally lead to Rev B s/w upgrade

• Rev B provides superior user experience with consistently higher data rates and lower delays

• 1x enhancements enable operators to significantly increase voice capacity while maximizing network and spectrum investments

• EV-DO performance and roadmap provides operators with the leading 3G broadband technology

Summary


Thank You

Gajinder Singh VijDirector Technical Marketing, QUALCOMM Inc.

[email protected]

gajinder singh vij cape town, march 12, 2008 - cdg.org operation enabled throughout the cell...

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