1- Umts_overview eğitimi

UMTS OVERVIEW9.11.2007

Yüksel Yılmaz

Mobile Technology Evaluation

PDC

GSM

TDMA

CDMA OneCDMA20001x EV-DO

W-CDMA

EDGE

TD-SCDMA

CDMA20001x RTT

GPRS

CDMA20001x EV-DV

HSDPA

TD-CDMA

3G/UMTS5%

90%+9%

13%

73%

Video services( video call, video contents, Live TV,Streaming)

Location Base Services ( transportation and logistic, security, navigation)

Interactive servicesMusic (master tone, ringback , MP3 download )

M-business ( prepaid top-up, m-bilet, m-bahis )

Interactive games

Video,voice and data access at the same time

Fast Internet connection

Services and Applications

Mobile Broadband Comparation

Maksimum download data(MB)

HSDPA

Cable

EV-DO

DSL

W-CDMA

EDGE

GPRS

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Musicdownload

Java Game

200 Kbps

384 Kbps

1.5 Mbps

2.4 Mbps

3.0 Mbps

3.6 Mbps

80 Kbps

SMS Emailattachment

Email InternetAccess

Video download

We arehere

4sn

40sn

80sn

200sn

http://www.jamster.co.uk/jiw/affiliateIndex.do?target=selectDocument&co=GB&la=en&contentType=12&title=Asphalt: Urban GT&zanpid=1250836C675250611

http://www.mtvjapan.com/

3GPP Evaluation

• HSDPA

• Enh UL• HSDPA

Ph2

• MBMS• Enh UL

Ph2

• 3G LTE

2004-5 2006

R99

2007 2008-9

Mobile Technologies

TURKCELL TURKCELL

UMTS APPLICATIONFIELD

UMTS APPLICATIONFIELD

3G COVERS 2G

2G2G3G

Technology

Network

Service

Operator Evaluation period

UMTS WCDMA

3G3G

TURKCELL TURKCELL

UMTS NETWORK

TURKCELL TURKCELL

UMTSMAIN NETWORK

UMTSMAIN NETWORK

Standart interface

TURKCELL TURKCELL

UMTS NETWORK WITH GSMUMTS NETWORK WITH GSM

CO-EXİSTANCE GSM&UMTS NODES

CO-EXİSTANCE GSM&UMTS NODES

TURKCELL TURKCELL

UMTSPHASE1 NETWORK

UMTSPHASE1 NETWORK

Main Change

TURKCELL TURKCELL

UTRANUTRAN

TURKCELL TURKCELL

SOFTER HANDOVER SOFT HANDOVER

LOGICAL RNC TYPESLOGICAL RNC TYPES

Macro Cell•Large coverage (->GSM)•High mobility•Max 384/144 kbps•Range > several 1km

Micro Cell•Hot spot coverage•Low/medium mobility•Max 2048/384 kbps•Range > several 100m

TURKCELL TURKCELL

UMTS CELLCONCEPTUMTS CELLCONCEPT

Pico Cell•High Indoor Low outdoor coverage•Low mobility (<10km/h)•Max 2048 kbps•Range > several 10m

TURKCELL TURKCELL

UMTS CONCEPT

TURKCELL TURKCELL

DEMANDS ON UMTSDEMANDS ON UMTSLOW COST

COMMUNICATION

UMTS

TURKCELL TURKCELL

EXAMPLE OF UMTSSERVİCES

EXAMPLE OF UMTSSERVİCES

TURKCELL TURKCELL

UMTS SERVİCES AND DATA RATE

UMTS SERVİCES AND DATA RATE

UMTS offers flexible anddynamic bit rat

8 – 2000 kbps

TURKCELL TURKCELL

UMTS CONCEPT (ZONE)

UMTS CONCEPT (ZONE)

TURKCELL TURKCELL

UMTS SPECTRUMUMTS SPECTRUM

UMTS UMTS

NEW LICANCE

RADIO ACCESS TECHNOLOGIES

HOW?

TURKCELL TURKCELL

RADIO ACCESS TYPESRADIO ACCESS TYPES

All user in same frequency

f1 f2 f3 f4

PBand Genişliği

f1 f2 f3 f4t1

t2t3

PBand Genişliği

f1 f2

kod1kod2kod3kod4kod5

kod1kod2kod3kod4kod5

Band Genişliği

kod x

t

P

t

P

FDMA

TDMA

CDMA

RADIO ACCESS TECHNOLOGIES

WCDMA Frequecy Band in Europe

1900 202520101920 1980FDD- UL 21702110 FDD- DL

60MHz 60MHz20MHz 15MHz

1 Carrier = 5 MHz

60/5 = 12Total number of FDD carriers

Total number of TDD carriers (20+15)/5 = 7

TURKCELL TURKCELL

SPECTRUM REQUIREMENTSFOR OPERATORS

SPECTRUM REQUIREMENTSFOR OPERATORS

Macro cell Micro Cell

15 MHz

UMTS RADIO ACCESS NETWORK (UTRAN)WCDMA TECHNOLOGY

TURKCELL TURKCELL

FREQUENCY

TRANSMISSION TYPESTRANSMISSION TYPES

3,84MHz

TURKCELL TURKCELL

SPREADINGSPREADING

B

SF:SPREADINGFACTOR

GSM 200KHz

UMTS5MHz

B= 3,84MHZ DUE TO GUARD PERİOD

TURKCELL TURKCELL

WCDMA Cocktail PartyWCDMA Cocktail Party

HOW SPANISH PEOPLE LISTEN SPANISH MUSIC ?

CODE

TURKCELL TURKCELL

SPREADINGSPREADING

SF= ? 4

SF GAIN DEPENDS ON USER DATA RATE

WCDMA CODES

WHICH BTS ?WHICH MS ?WHICH DATA RATE?HOW MANY APPLICATIONS?

WHICH BTS ?WHICH MS ?WHICH DATA RATE?HOW MANY APPLICATIONS?

•PN (SCRAMBLING) CODE• -(LONG CODE)

•ORTHOGONAL CODE -Spreading-(SHORT CODE)

TURKCELL TURKCELL

PN CODESPN CODES

Uplink: PN Code used to distinguish each Mobile StationDownlink: PN Code used to distinguish each Base Station

PN3 PN4

PN1 PN1

Cell Site “1” transmits using PN code 1

PN5 PN6

PN2 PN2

Cell Site “2” transmits using PN code 2

TURKCELL TURKCELL

PN CODESPN CODES

⎟⎠⎞

⎜⎝⎛=

Rate DataRate Code PN

Both signals combinedin the air interface

PN Code 1Frequency

Am

plit

ude

Signal 1

PN Code 2Frequency

Am

plit

ude

Signal 2

Spread SpectrumProcessing Gain

PN Code 1 Signal 1 is reconstructedSignal 2 looks like noise

Both signals arereceived together

AT THE RECEIVER...

Two Transmitters at the same frequency

TURKCELL TURKCELL

ORTHOGONAL CODESORTHOGONAL CODES

OC1, OC2OC3, OC4

OC5, OC6, OC7

OC1 , OC2, OC3OC1, OC2

OC1, OC2, OC3, OC4

Uplink: Orthogonal Codes used to distinguish data channelscoming from each Mobile Station

Downlink: Orthogonal Codes used to distinguish data channelsComing from each Base Station

TURKCELL TURKCELL

Chip Rate = 3.840 Mcps

480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s

1

11 10

1111 1100 1010 1001

11111111 11110000 11001100 11000011 10101010 10100101 10011001 10010110

User with 4x Bit Rate

= Unusable Code Space

480 kb/s 480 kb/s 480 kb/s 480 kb/s

1.92 Mb/s

Chip Rate = 3.840 Mcps1

11 10

1111 1100 1010 1001

11111111 11110000 11001100 11000011 10101010 10100101 10011001 10010110

ORTHOGONAL CODESORTHOGONAL CODES

(Walsh) Codes(Walsh) Codes

TURKCELL TURKCELL

• Cellular CDMA (IS-95, cdma2000, WCDMA)

– PN Codes are used:• To distinguish between Mobile Stations• To distinguish between Base Stations

– Orthogonal Codes are used:• To distinguish between data channels

coming from each MS• To distinguish between data channels

from each BS

PN Spreading Codes

and

Orthogonal Codes

are simultaneously utilized

Frequency

CodeDivision Multiple Access

SpreadSpectrumMultipleAccess

User 1

User 2

User 3

...

CODES SUMMARYCODES SUMMARY

TURKCELL TURKCELL

WCDMA ASPECTSWCDMA ASPECTS

POWER CONTROLPOWER CONTROLCELL BREATHINGCELL BREATHING

RAKE RECEIVERRAKE RECEIVER

HANDOVERHANDOVER

TURKCELL TURKCELL

POWER CONTROLPOWER CONTROL

WHY POWER CONTROL ?

Desired SignalThreshold

İnterferer

Signalp1 p2 p3

Increase CapacityIncrease Capacity

TURKCELL TURKCELL

RAKE RECEIVERRAKE RECEIVER

• CDMA Mobile Station RAKE Receiver Architecture– Each finger tracks a single multipath reflection

• Also be used to track other base station’s signal during soft handover– One finger used as a “Searcher” to identify other base stations

Finger #1

Finger #2

Finger #N

Searcher Finger

Combiner

Sum ofindividual multipath components

WCDMA Radio Access Services(RAB)

CS PS

12,2kbps

VOICE64/64kbps(UL/DL)

64/64kbps

(UL/DL)64/128kbps

(UL/DL)64/384kbps

(UL/DL)

5,7/14MbpsHSPA

Video Call

UE NodeB RNC CN

RAB

WCDMA BASIC PRINCIPAL

Spread signal by means of codes

12,2 KHZVoice service

CODE

3,84MhzBandwith of coded signal

code x

t

P

tP

Spreading Factor Gain-1

Rb

W=3,84MHz

SF= W/Rb

Unspread signal

Spread signal

Power density

Frequency

Background Noise


Rb Change by serviceSF= W/Rb

W 3,84Mbit (fix)

User bit rate Kbit W=3840Kbit

SF SF gaindB

15 3840 256 24

30 3840 128 21

60 3840 64 18

120 3840 32 15

240 3840 16 12

480 3840 8 9

960 3840 4 6

1920 3840 2 3

3840 3840 1 0

ORTHOGONALDEĞİŞKEN KOD


SF= ? 4

SF GAIN DEPEND ON USER DATA RATE

ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF)

•SF Gain depend on OVSF codes.

Chip Rate = 3.840 Mcps

480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s 480 kb/s

1

11 10

1111 1100 1010 1001

11111111

11110000

11001100

11000011

10101010

10100101

10011001

10010110

OVSF Code Tree

SF=8

SF=4

SF=2

SF=1

960 kb/s

1920 kb/s

User data

= Unusable Code Space

480 kb/s 480 kb/s 480 kb/s 480 kb/s

1.92 Mb/s

Chip Rate = 3.840 Mcps1

11 10

1111 1100 1010 1001

11111111

11110000

11001100

11000011

10101010

10100101

10011001

10010110

ORTHOGONALITY

Orthoganality = 0 Orthoganality = 0,5 Orthoganality = 1Orthoganality = 0 Orthoganality = 0,5 Orthoganality = 1

Uplink Downlink

•UL scrambling codes has not got orthogonality

•DL scrambling codes has got orthogonality

Channelization codes are ‘Orthogonal’

CH1

(SF 128)

(1,1)

CH2 (SF 8)

(1,-1)

(1,-1)

Ch1 + CH 2

(1,-1)

CH1

(SF 128)

CH2 (SF 8)

Lost one chip= 1/128 symbols

Since codes are Orthogonal one channel cannot currupt both chips, regardless of

the power imbalance

*J

I

CHANNELISATION CODE

DPDCHCOMPLEX

SCRAMBLING CODE

I-Q CODE MULTIPLEXING WITH COMPLEX SCRAMBLING

I+JQ

Q

DPCCHG=1 control channelG=0.5 data channel

GCHANNELISATION CODE

SCRAMBLING CODES

USAGE•UL: Separation of Terminals

•DL: Separation of Cells

NUMBER OF CODES

•UL: Several Millions

•DL: 512

CODE FAMILY

•Long 10 ms Code: Gold Code

c4,1=(1,1,1,1)

CHANNELISATION CODE TREE

c2,1=(1,1)

c4,2=(1,1,-1,-1)

c1,1=(1)

SF=4 c4,3=(1,-1,1,-1)

c2,2=(1,-1)

SF=8 c4,4=(1,-1,-1,1)

SF=16

CHANNELIZATION CODESUSAGE

•UL: Separation of physıcal data and controlchannels from same terminal

DPDCHDPCCH

•DL: Separation of downlink connections todifferent users with in one cell

NUMBER OF CODES

•UL/DL: Spreading Factor 4 to 512

CODE FAMILY

•Orthogonal Variable Spreading Factor (OVSF)

SCRAMBLING CODE-1

Uplink

•Number of Scrambling code (224) (approximately 17 Millions.)

•UL scrambling codes are not orthogonal.

•UL scrambling codes given by RNC to MS

Downlink

•Number of DL primary Scrambling codes is 512

•DL scrambling codes are orthogonal

UL scrambling codes are used to distinquish each Mobile

DL scrambling codes are used to distinquish each sector

SCRAMBLING KOD-2CODE USING

Uplink : Distinquish Mobil Terminal.Downlink: Distinquish each cell.

PN3 PN4

PN5 PN6

PN1 PN1

NodeB Cell “1” PN code 1

PN2 PN2

NodeB cell “2” PN code 2

RADIO RESOURCE MANAGEMENT-1

CellCoverage

CellCapacity

ServiceQuality

Optimization

NodeB

RNC

RRM


Admission ControlAdmission Control

PAKETSCHEDULING

LOADCONTROL

HANDOVERCONTROL

Powercontrol

RRM


384128 64 FACH 64 128

384

Power or Load Limit

dB

Kbps

128384

HSDPA- Kullanıcı Terminal

Teorik olarak DL yönünde tepe veri hızı 14Mbps dır

Pazarda 1,8Mbps ve 3,6Mbps mevcuttur

HSDPA- Radyo Özellikleri-1

•Ortak Kanal Kullanımı

Dinamik olarak Kod ve Zaman bazında paylaşım

Sabit OVSFC (SF 16) kullanılır.

Kullanıcı terminal özelliğine bağlıolarak aynı anda 15 SF16 kullanılabilir.

•Kısa TTI aralığı

Her 2ms (TTI) de bir farklı kullanıcıya servis verilebilir.

HSDPA- RadyoHSDPA- Radyo Özellikleri-2

•Yüksek seviyede Modülasyon

16 QAM özelliği bulunmaktadır.

•Hızlı Link Adaptasyonu

Radyo kalitesine bağlı modülasyon seviyeleri veTipleri değiştirilir.

Yüksek Radyo kalitesi 16QAMDüşük Radyo kalitesi QPSK


•Hızlı Re-transmisyon

Hatalı paketler için Soft birleştirme yapılır.

Re-transmisyon Node-B – Kullanıcı terminali arasında gerçekleşir.

RLC ack/nack

Re-transmisyon

PS Data

L1 ack/nack

Retransmission

PS Data


•Hızlı Scheduling

Kullanıcıların elde ettiği ortalama hızlara göre ortak kanalın hangi kullanıcıveya kullanıcılara tahsis edilmesi gerektiği kontrol edilir.

Scheduling işlemi her TTI süresinde (2ms) yapılır.

SchedulingAlgoritmaları

Round-Robbin

Proportional Fair

Gecikmeye bağlı

Performansa bağlı

HSDPA Uygulama Metodları

R99+R5f1

f1

f2

f1 R99

R5

Aynı taşıyıcı kullanma

Farklı taşıyıcı kullanma

WCDMA

HSDPA

WC

DM

A

HSD

PA

HSDPA- Uygulama

HSDPA - ÖzetWCDMA- HSDPA GENEL KARŞILAŞTIRMA

WCDMA HSDPAOVSFC VAR YOK

HIZLI GÜÇ KONTROL VAR YOK

TTI SURESI 10ms 2ms

MAKSİMUM KULLANICI VERİ HIZI 384Kbps 14Mbps

DEĞİŞKEN MODÜLASYON YOK VAR

HIZLI RE-TRANSMISYON YOK VAR

SOFT HANDOVER VAR YOK

HIZLI SCHEDULING YOK VAR

HSDPA için 2nci taşıyıcı kullanılması durumunda, WCDMA’e göre DL yönünde yaklaşık 3 kat daha fazla hücre kapasitesi oluşmaktadır.

TURKCELL TURKCELL

UMTS CORE NETWORK

TURKCELL TURKCELL

1. Layered Network Architecture

2. Transport Network

3. UMTS R1 and R2

CORE NETWORK ARCHITECTURECORE NETWORK ARCHITECTURE

TURKCELL TURKCELL

Application

ApplicationService Capability Servers

Control

MSC SGSN HLR/AuC/FNR GMSC/Transit

SGW

ConnectivityMGW

MGWGGSN

Services/applicationlayer

Control

ServerServerServer

Servers

Servers

PSTN/ISDN

InternetIntranets

WCDMAEDGE

GSM

CN LAYERSCN LAYERS

TURKCELL TURKCELL

GMSCGMSC

HLRHLR

EIREIR

AUCAUC

SCFSCF

SMS-IWMSCSMS-

IWMSC

AN CNExternalNetworks

UE

MSCMSC

SMS-GMSCSMS-GMSC

MSCMSCBSCBTSSIMSIM MTMT A

ISDNPSTNPSPDNCSPDNPDN:-Intranet-Extranet-Internet

BSS

Iu

RNCBS

Iur

USIMUSIM MEME

RNCBSUSIMUSIM MEME

Iu

RNS

RNS

WCDMA RAN

Note:Not all interfaces shown and named

GGSNGGSN

SGSNSGSN

SGSNSGSN

Gb

UMTS/GSM Reference model


TURKCELL TURKCELL

Control LayerProvides control for specific services, for example call control and session management. Network specific.

Connectivity LayerAll services will use the same transport network, which forms the connectivity layer. Here everything to do with the transport andmanipulation of user data is handled

Application LayerIn the final layer, the generic applications that may be used by all types of services are located. These could be, for example, IN applications.

Application

Application

Service CapabilityServers

Control

MSC

SGSN

HLR/AuC/FNR

GMSC/Transit

SGW

Connectivity

MGW MGW

GGSN

Services/applicationlayer

Control

Server

Server

Server

Servers

Servers

PSTN/

ISDNInternetIntranet

sWCDM

AEDGE

GSM



TURKCELL TURKCELL

WCDMA RAN

WCDMA RAN

MGW

Connectivity backbone(IP, ATM)

MSCServer

SGSNServer

SCP

Connectivity

Control

Services/Applications

HLR

Appl Servers

MGWGGSN

InternetIntranets

MGWPSTN/ISDN/

PLMN

TelephonyServer H.323

SCS

MGW

SIP

CN NETWORK VISIONCN NETWORK VISION

TURKCELL TURKCELL

UMTS TRANSMISSION NETWORK

TURKCELL TURKCELL

• SDH

• ATM

• IP

Servers

Clients

Backbone Network

AccessAccess

Service Capabilities Service Control

Content Applications

Access

TRANSMISSION TECHNOLOGIESTRANSMISSION TECHNOLOGIES

TURKCELL TURKCELL

MSC/VLR

GMSCMGWAXE10

MSC/VLR

MGWAXE10

MSC/VLRTSC

MGWAXE10

MSC/VLRTSC

MGWAXE10

HLRAXE10

A

AA

BackboneGSMBSS

GSMBSS

GSMBSS

TSCMGWAXE10

GMSCMGWAXE10

STM

STM

AXD301

AXD301

Cello

Iu

GSMBSS

A

WCDMA RAN

ATM

ATM

ATM

ATMATM

STM

STM

STMSTM

STM

STM

Cello

ATM

ATM

STEP1STEP1

TURKCELL TURKCELL

MSC/VLR

GMSCMGWAXE10

MSC/VLR

MGWAXE10

MSC/VLRTSC

MGWAXE10

MSC/VLRTSC

MGWAXE10

HLRAXE10

A

AA

BackboneGSMBSS

GSMBSS

GSMBSS

TSCMGWAXE10

GMSCMGWAXE10

STM

STM

AXD301

AXD301

Iu

GSMBSS

AMGW

Cello

MGWCelloMGW

Cello

MGWCello

WCDMA RAN

STM

STM

STM

STM

Cello

STEP2STEP2

TURKCELL TURKCELL

HLRAXE10

BackboneIP-BSS

Router/SwitchATM/IP

MSC/VLRTSC/GMSC

ServerAXE10

MGWCello

MGWCelloMGW

Cello

MGWCello

WCDMA RAN

MGWCello

MGWCello

MGWCello

MGWCello

MSC/VLRTSC/GMSC

ServerAXE10

WCDMA RAN

MGWCello

Router/SwitchATM/IP

Router/SwitchATM/IP

GSMBSS

WCDMA RAN

STEP3STEP3

TURKCELL TURKCELL

PSTN/ISDN

MGW/GGSN Internet

Intranets

WCDMA RANMGW

CS Domain

MSCServer

GMSCServer

SGSNW

HLR

RBS RNC

PS Domain

Service Plane

Control Plane

User Plane

IP routers

Application Servers

UMTS Network Architecture -IP based data transport

UMTS Network Architecture -IP based data transport

Teşekkürler

Yüksel Yı[email protected]

5322100060

1- Umts_overview eğitimi

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