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NETWORK PERFORMANCE AND TECHNICAL QUALITYNETWORK PERFORMANCE AND TECHNICAL QUALITYPT. SIEMENS INDONESIAPT. SIEMENS INDONESIA20052005

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UMTS INTRODUCTION

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GSM Phases

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GSM Phase 2+ Solution

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GSM Evolution to UMTS

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3G Frequency Spectrum

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UMTS-Two Different Modes

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CDMA Principle

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CDMA Principle

Characteristic of Spread Spectrum Systems

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CDMA Principle

Characteristic of Spread Spectrum Systems

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CDMA Principle

Characteristic of Spread Spectrum Systems

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Conclusion

CDMA Advantages

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DS-CDMA Structure

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DS-CDMA Structure

Data Transmission in UTRAN FDD

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DS-CDMA Structure

Spreading Codes

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DS-CDMA Structure

Spreading and De-spreading

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DS-CDMA Structure

Channelization versus Scrambling Codes

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DS-CDMA Structure

Application of Channelization and Scrambling

Codes

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UTRA Timing Structure

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Definition of Cell & Carrier

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UMTS System Architecture

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System Architecture

Core Network (CN)

Radio Access Network (UTRAN)

User Equipment (UE)

Uu

Iu

General UMTS Hierarchy

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System Architecture

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System Architecture

Node B Functionality

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System Architecture

RNC Functionality

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System Architecture

UE Uu IuCNUTRAN

Access Stratum

Non-Access Stratum

Network Functional Relationships

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System Architecture

Access Stratum contains all radio-access specific functionality e.g.

Mobility Management

offers services to UE and Core Network(CN) e.g.transport of messages

Non-Access Stratum offers UMTS services to the users

Strict separation between Radio Access and CoreNetworks

Enables reuse of Core Network subsystems with many Radio

Access implementations

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System Architecture

RNCRNC

UMTS Network Phase 1

HLR

MSC/VLRMSC/VLR

SGSNSGSN GGSNGGSN

GMSCGMSC

RNCRNC

NodeBNodeB

BSCBTS

RNSRNS

AA

IIuu

GGbb

GGnn

Packet domainPacket domain

Circuit domainCircuit domainPSTNPSTN

PLMNPLMN

InternetInternet

GGii

GGpp

BSCBTS

PCU

MSC/VLRGMSC

Circuit domain

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System Architecture

RNC

BSC MSC/VLR GMSC

Circuit Domain

PSTN

BTS

SGSN GGSN

HLR

Node B RNC

PLMN

Internet/PDN

Packet Domain

Network Evolution Common Platform

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System Architecture

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System Architecture

RNC RN-750 Functionality

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System Architecture

Previous Design RN-750 Rack Types (Frames)

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UTRAN Functional Description

Power Control and Handover

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UTRAN Functional Description

Power Control Principle

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UTRAN Functional Description

Power Control

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UTRAN Functional Description

Open Loop Power Control

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UTRAN Functional Description

Open Loop Power Control

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UTRAN Functional Description

Closed Loop Power Control

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UTRAN Functional Descript

Closed Loop (Inner Loop) Power Control

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UTRAN Functional Descript

Closed Loop (Inner Loop) Power Control

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UTRAN Functional Description

Closed Loop (Outer Loop) Power Control

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UTRAN Functional Description

Power Control

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UTRAN Functional Description

Handover

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UTRAN Functional Description

Soft Handover

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UTRAN Functional Description

Soft Handover

Soft Handover Reporting events

Intra Frequency : 1A, 1B, 1C,

1A : Radio Link Addition

1B : Radio Link Removal

1C : Combined Radio Link addition and removal

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UTRAN Functional Description

Soft Handover

Soft Handover Algorithm and Execution

(an example)

SHO_window

Hysteresis_1AHysteresis_1C

SHO_window +Hysteresis_1B

Connected to Cel l 1

Event 1A

Ad d Cel l 2

Event 1C

Replace Ce ll 1 w ith Cell 3

Event 1B

Remov e Cell 3

CPICH Cell 1

CPICH Cell 2

CPICH Cell 3

Time

Ec/Io

(T (T (T

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UTRAN Functional Description

Handover

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UTRAN Functional Description

Handover

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UTRAN Functional Description

Handover

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Radio Channel Configuration

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Radio Channel Configuration

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Radio Channel Configuration

Logical channels

Carry information (like GSM logical channels)

Transport channels Map logical channels onto physical channels

Dedicated transport channels are dedicated to a user

C

omm

on transp

ort

channels are

comm

on t

oall user in acell

Physical channels Frame sequence, frequency and code

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Radio Channel Configuration

R di Ch l C fi ti

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Radio Channel Configuration

Physical Channel

R di Ch l C fi ti

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Radio Channel Configuration

Physical Channel

Purpose

CommonChannels

Physical andom ccessChannel

(PRACH)

Data Part:

For ransmittingthedatageneratedat Layer andabove.

Control Part:

Fortransmittingcontrolinformationgeneratedat Layer .

-Pilotbits

- ransport-formatcombinationindicator(TFCI)

PhysicalCommonPacketChannel

(PCPCH)

FortransmittingsmallormediumsizepacketsontheCPCH.

DedicatedChannels

DedicatedPhysicalDataChannel

(DPDCH)

Fortransmittingthededicateddatageneratedat Layer andabove.

DedicatedPhysicalControlChannel(DPCCH)

Fortransmittingcontrolinformationgeneratedat Layer-Pilotbits

-Transmitpower-control(TPC)commands

-Feedbackinformation(FBI)

-Transport-formatcombinationindicator(TFCI)

ChannelType

R di Ch l C fi ti

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Radio Channel Configuration

Physical Channel

Pur

l

Pil t l

PI H)

F rtr itti r - fi it/ l quence.

Pri r n ntr l Physical

hannel PCCPCH)

F rtransmittingsystem/cell specific inf rmati nandcontrol information.

-Frequency information

- L scramblingcode

SecondaryCommonControl Physical

Channel SCCPCH)

Fortransmitting informationon theFACHandPCHandcontrol information.

-Pilot bits- Transport-format combination indicator TFCI)

Synchroni ationChannel

SCH)

Forcell search

-PrimarySCH

-SecondarySCH forthe indicationofthescramlingcodegroup)

Physical ownlinkSharedChannel

PDSCH)

Fortransmitting informationonDSCH.

AcquisitionIndicationChannel

AICH)

FortransmittingAcquisitionIndicators AI).

PageIndicationChannel

PICH)

FortransmittingPageIndicators PI).

DedicatedChannel

DedicatedPhysical Channel

DPCH)

Fortransmitting thededicateddatageneratedandcontrol information.

-Pilot bits

- Transmitpower-control TPC)commands

- Transport-format combination indicator TFCI)

Channel Type

R di Ch l C fi ti

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Radio Channel Configuration

Physical Channel

Radio Channel Configuration

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Radio Channel Configuration

Transport Channel

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Radio Channel Configuration

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Radio Channel Configuration

Transport Channel

Transport channels Dedicated transport channel

DCH

Carries all info for a given user

Service data (eg speech) and control data (eg handover

commands)

Data rate and data type changes on a frame by frame basis

Radio Channel Configuration

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Radio Channel Configuration

Transport Channel

Transport channels Common transport channels

Broadcast channel (BCH)

Forward access channel (FACH)

Paging channel (PCH)

Random access channel (RACH)

Uplink common packet channel (CPCH)

Downlink shared channel (DSCH)

Radio Channel Configuration

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Radio Channel Configuration

Common Transport Channel

Broadcast channel (BCH) Inf ormation specific to a cell

Random access codes and slots

Relatively high power

Low and fixed data rate (best coverage)

Forward access channel (FACH) Downlink control information

To specific terminals

Eg after a random access message is received by the BS

Paging channel (PCH) Downlink paging

A terminal is paged in all cells of the Routing Area (Location Area)

in which it is situated

Radio Channel Configuration

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Radio Channel Configuration

Transport Channel

Random access channel (RACH) Uplink access requests

Also small amounts of packet data

Low data rate (best coverage)

Uplink common packet channel (CPCH) Extension to the RACH

Packet based uplink user data

Uplink halfof FACH

Downlink shared channel (DSCH) Shared channel (common channel) but carrying dedicated data

Does not need tobe heard in the whole cell area

Radio Channel Configuration

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Radio Channel Configuration

Logical Channel

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UTRAN FDD

Measurement Abilities

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UTRAN FDD Measurement Abilities

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UTRAN FDD Measurement AbilitiesCPICH Received Signal Code Power (RSCP)

UTRAN FDD Measurement Abilities

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UTRA Carrier Received Signal Strength Indicator

(RSSI)

UTRAN FDD Measurement Abilities

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UTRAN FDD Measurement AbilitiesCPICH Ec/No

UTRAN FDD Measurement Abilities

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UTRAN FDD Measurement AbilitiesSignal Interference Ration (SIR)

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Coverage Analysis: process profile

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