3G Roadmap

3G NETWORK EVOLUTION

3G NETWORK EVOLUTION

NETWORK EVOLUTION

Evolution Overview Roadmap Evolution Strategy WCDMA Access and

Interfaces Cell Planning

AGENDA

3G NETWORK EVOLUTION

GPRS EDGEHSCSD

UMTS

NETWORK EVOLUTION OVERVIEW

HO IP

3G NETWORK EVOLUTION

ROADMAP - EDGE & UMTS

2001 2002 2003 2004

GPRS (system)

UMTS (system)

EDGE (hardware)

GPRS terminal

UMTS (early systems)

UMTS / GPRS terminal

UMTS / EDGE / GPRS terminal

EDGE (software)

3G NETWORK EVOLUTION

SERVICE EVOLUTION IN ALIGNMENT WITH UMTS

R8

R9 R10

R11

3G NETWORK EVOLUTION

EVOLUTIUON STRATEGIES

Target operator ChoiceScenario

GPRS + EDGE + UMTSFull migration due

to capacity demand

GPRS + EDGEMigration within existing spectrum

GPRS + UMTSEvolution with new spectrum

Customer feedback: “EDGE must be no effort”

3G NETWORK EVOLUTION

WCDMA

PACKET AND CIRCUIT SWITCHED SERVICES CAN BE FREELY MIXED, WITH VARIABLE BANDWIDTHS, AND DELIVERED SIMULTANEOUSLY TO THE SAME USER, WITH SPECIFIC QUALITY LEVELS

3G NETWORK EVOLUTION

WCDMA – FREQUENCY SPECTRUM

UPLINK: 1920-1980 MHz

DUPLEX DISTANCE: 190 MHz

DOWNLINK: 2110-2170 MHz

THE CARRIER FREQUENCY WIDTH IS 5 MHz

3G NETWORK EVOLUTION

EDGE & WCDMA - Complementary 3G Technologies

900/1800/1900 MHzRadio

EDGE

2 GHzRadio

WCDMA

CORE NETWORK

APPLICATION SERVERS

CONTROL,CONNECTIVITY LAYERS

APPLICATION LAYER

3G NETWORK EVOLUTION

ACCESS AND INTERFACES

3G NETWORK EVOLUTION

ACCESS AND INTERFACES

3G NETWORK EVOLUTION

ACCESS AND INTERFACES

3G NETWORK EVOLUTION

UTRAN

Manage Radio Access Bearers for user data transport, manage and optimise the radio network resources and control mobility while the BTS provides the actual radio resources and maintains the radio links

UTRAN contains both the radio parts and the Access Network inclusive the nodes

3G NETWORK EVOLUTION

CELL PLANNING

Performance Analysis

Modelling

PlanningOptimisation

Integration

PLANNING PROCESS

3G NETWORK EVOLUTION

CELL PLANNING

In comparison to a traditional TDMA system the coverage of WCDMA depends on the traffic load in the cells. In a system where the load changes this will cause the cells to grow and shrink with time.

Q

ual

ity

Load

3G NETWORK EVOLUTION

CELL PLANNING

Capacity: It is well known that there is a trade off between coverage and capacity in a CDMA system.The cluster size is nearly determined by the average level of the interference

3G NETWORK EVOLUTION

CELL PLANNING

Power is the shared resource which yields high service flexibilityFor a single user, multiple services with different variability can be mixed easily on one terminal

Bitrate

Service 1PowerLevel

CA

Service 2Bitrate

Coverage, Capacity and Service Flexibility

3G NETWORK EVOLUTION

CELL PLANNINGCoverage, Capacity and Service FlexibilityExample of power levels when different services from different terminals are combined

Power levels from MS

CA

CB

CC

CD

Received power levels at the base station

3G NETWORK EVOLUTION

CELL PLANNING

WCDMA PLANNERS

-DESIGN

-PERFORMANCE

-DOWNLINK DRIVE TEST

PLANNING TOOLS

3G NETWORK EVOLUTION

COMBINED POWER OF EDGE AND WCDMA

Edge

UMTS

Edge

UMTS

2002 2003

Reuse Installed base stations

Launch day one Minimized Risk Fast Return on

investment