Smart Choice of CDMA2000 Evolution

ZTE Corporation

June 11, 2008

CDMA Market Facts

More than 438M CDMA2000 subscribers More than 97M CDMA2000 1xEV-DO subscribers

Multi-Faceted Approaches

Improvements of Existing Networks

Smooth Migration to Next Generation

Advanced Technology Studies

1

2

3

Improvements on Existing Networks

Voice Capacity Improvement

4GVPICCDMA2000 1x Advance4 Way diversity

Self Configuration of Networks

Enable large scale femto and pico cell deployments

Reduce OPEX for network management

Optimize network performance and reduce interference

Services Enhancements

VoIP Wireless Sensor networksWireless Trunking ServicesOther developed CDMA2000 1x

features to be applied

Self Backhaul

New technologies (relays, mesh network etc.) reduce OPEX on backhaul

…

EV-DO Roadmap

2008 2010 2012 2015 2017+

UbiquitousService

2nd/3rd CarrierVoIP Service,

Features

Mature VoIP/Multimedia Servicebasic IWK with LTE

Seamless IWKwith LTE

EV-DO Rev AEV-DO Rev A

EV-DO Rev BEV-DO Rev B

DO-AdvDO-Adv

Mature DOMature DO

LTE Starts DeploymentLTE Starts Deployment

LTE small DeploymentLTE small

Deployment

LTE large DeploymentLTE large

Deployment

EV-DO Advanced Antenna Technology

MIMOSupport the users high throughput at high S/N

SDMA Increase sector throughput via simultaneous transmission to multiple users

MIMOSDMA

Inter-Technology Inter-working

Other Technology Network

BS

MSC

Internet

HA

AAA

DNPS

ZTE

Multi-Mode Mobile

PDSN/AGW

CDMA2000 Network

OFDM-Based Network

RNC

Multi-Mode Mobile

Multi-Mode Mobile

Multi-Mode Mobile

Multiple Technologies with Unified PlatformLTEEvolution

2008

2010

2006

Multimode Multi Frequency Band

Smooth EvolutionSupport advanced antenna technology

LTE

SDR Base StationBase Band

RURU

RURU

RURU

RURU

RURU

RURU

MicroTCA platform

Multiple Technologies Unified Platform Multiple Technologies Unified Platform

WiMAX

Unified Access Platform

CDMA Advance

GSM

WCDMACDMA

WiMAX

TD-SCDMA

Lower Investment, Lower Risks, Better Evolution

CDMA2000 1X

ZTE SDR

CDMA2000 1XCDMA2000 EV-DO

LTE/WiMAXCDMA2000 Advance

SW upgrade & Channel board replace

SW upgrade & Channel Board replace

CDMA2000 CDMA2000 1X + EV-DO + LTE/CDMA Advance with radio unit adding and channel board replacing

ZTE SDR solution will protect your investment and flexible for your network development

Centralized base-band supports network collaborative MIMO and coordinated multi-point transmission and receptionDistributed antenna system supports macro transmission and receiving diversity across multiple locations Easy to support inter-cell interference managementLeverage the advantages of MIMO, SDMA and beam forming

Advanced Technology Studies (1)

Remote RF

Remote RF

Remote RF

Remote RF

Centralized BBU for MIMO and Control of ICI

Distributed Antenna System Architecture

Advanced Technology Studies (2)

Repeater/Relay

Remote RFRemote RF

Repeater/Relay

Multi-Hop Relays and Mesh Networks

L1 Relay (Repeaters) and L2 Relay functionalityCost efficient coverage extension and capacity enhancementStandardized frame structure, power control and control-signaling solutions

Self-backhaul (L3 Relay) solution for outdoor/indoor environments

Advanced Technology Studies (3)

Dynamic adaptation of modulation, coding type and rate Retransmission mechanisms with sub carriers, sub frames and spatial multiplexingTransmit power control

Radio Link Adaptation

MBSFN

Use of single frequency network to provide multicast and broadcast servicesImprove mobile station receiving performance at cell edges via channel sharing and macro diversity Increase channel capacity of multicast and broadcast via link adaptation

Summary

CDMA2000 1x/DO enhancement improves performance, capacity, and cost efficiency of the existing networks

Provides smooth migration and inter-working of existing networks and networks based on future technologies

Investigate advanced technologies to fulfill operator’s future requirements