UMTS Global Standard for 3G Wireless Communication Shariq Yasin - - PowerPoint PPT Presentation

UMTS – Global Standard for 3G Wireless Communication

Shariq Yasin

• Sr. Manager (RNE)

3G Technologies (Guarantee) Ltd.

29th January, 2009

2

Central Asian CDMA Forum

 Provide CDMA/WCDMA technology and development awareness,

training and related industry support in Central Asia through;

• Training & HR Development Collaboration with Governments,

Regulatory Agencies, Operators, Academia, Professionals and Manufacturers

• Benchmarking of the Industry
• Technical Audit of Networks & Services
• Media and advocacy
• Inter-active discussion portal
• Roaming and specifications development (associate

membership of CDG)

• Consultancies

 Develop relationship with other Technology Development

Organizations

3

Accomplishments



Inter-active online portal

• Region Telecom Industry News, Technology Information, Discussion Forum

& Job Postings



Series of CDMA awareness programs on FM radio network on CDMA Technology



Trainings Conducted

• Kyrgyzstan, Azerbaijan, Tajikistan Operators & MOC/Regulator, INPT/WANA

Moroco, Afghan Telecom, PTCL, PTA, FAB, Diallog, HEC, UET Lahore, IQRA University, DVcom, GIKI, IMS Peshawar, Telecard, Comsats etc.



Co-operation with other CDMA organizations like CDG, CDMAU, CCF, GHRC and regional CDMA Forum such as Africa CDMA Forum



Bench marking & Audit of CDMA operators



Establishment of CDMA HR Development Centre.



Establishment of permanent Engineering Services Working Group (ESWG) to resolve technical issues between CDMA operators



GHRC Initiative for Pakistan WLL Operators



Held Seminars on UMTS awareness and regulations in Kyrgyzstan, Tajikistan and Pakistan

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Sections

 Multiple Access  IMT2000 Umbrella  Evolution Path  UMTS Services  UMTS Overview  Network Architecture  Codes and Channels  LTE Overview  UMTS Deployment and General Aspects

Multiple Access

6

Multiple Access Techniques

 Multiple Access

• To maximize the usage of scarce resource like

Frequency.

 Three widely used techniques

• Frequency Division Multiple Access
• Time Division Multiple Access
• Orthogonal Frequency Division Multiple Access
• Code Division Multiple Access
• Frequency Hopping Spread Spectrum (FH-SS)
• Direct Sequence Spread Spectrum (DS-SS)

IMT2000 Umbrella

8

ITU, IMT2000

 ITU (International Telecommunication Union)

• Specialized agency of UN.
• Standardization of Telecommunication and allocation of Spectrum
• The Telecommunication Standardization Sector, ITU-T
• The Radiocommunication Sector, ITU-R
• The Telecommunication Development Sector, ITU-D

 IMT-2000 (International Mobile Telecommunications)

• Defined by ITU for the Global Standard for 3rd Generation wireless

communications in 1999

• Includes six radio interfaces as a part of the ITU-R M.1457

Recommendation:

• WCDMA (UTRA-FDD)
• CDMA2000
• TD-CDMA and TD-SCDMA
• EDGE
• DECT
• IP-OFDMA TDD WMAN (in 2007)

9

3GPP

 3GPP (3rd Generation Partnership Project)

• Created in Dec 1998, for the collaboration between

telecommunication associations to develop globally acceptable 3G mobile phone system under the scope of IMT-2000

• Technical Specifications and Technical Reports for a 3G

Mobile System based on evolved GSM core networks and the radio access technologies that they support (i.e., Universal Terrestrial Radio Access (UTRA) both Frequency Division Duplex (FDD) and Time Division Duplex (TDD) modes).

Evolution Path

11

Need for Evolution



Global Standard for cost effectiveness



New Services (Video Telephony)



Spectral Efficiency to accommodate more subscribers



More Throughput (more UL and DL requirements)



Global Roaming



Achieving Customer Expectations



Roadmap to Future Evolution



Vendor Support

• EOM: (End of marketing) End of new order (1~2 Yr)
• EOFS: (End of Full support) End of bug fixing (3 Yr)
• EOS: (End of Service) End of Service Supporting (4 Yr)

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Evolution of 3G: Data Rates

13

Timeline: UMTS and CDMA2000

14

Evolution of 3G

UMTS Services

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 Voice Call

• Adaptive Multi-Rate (AMR) Voice Codec

 Packet Switched (PS) Data

• Reuses NAS layer of GPRS

 Circuit Switched (CS) Data

• Includes Sync / Async Data
• Includes Group 3 Fax
• Protocols the same as for GSM

 Location Based Services (LBS)

Call Types

17

 Multi- Services requires service classified QoS

• Time-delay sensitivity

Service classified

18

Device Support

UMTS Overview

20

UMTS and W-CDMA

 UMTS: Universal Mobile Telecommunications System

• UMTS encompasses the entire mobile communication system,

including the two core networks, and up to three radio access networks.

CS-Core Network UTRA-TDD PS-Core Network UTRA-FDD (WCDMA) GSM/GPRS Non-Access Stratum (NAS) Access Stratum

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• Universal Mobile Telecommunication System/Wide-

band CDMA is a 3G, Direct Sequence CDMA-based Radio Access Network (RAN), with chip rate of 3.84 Mcps.

• Designed to be deployed under GSM/GPRS network.
• “WCDMA” refers to the FDD Physical Layer and

the protocols that support it.

• “UTRAN” refers to the UMTS/WCDMA Radio Access

network.

• “UMTS” refers to the entire network.

What is UMTS/WCDMA?

22

The carrier frequency is designated by the UTRA Absolute Radio Frequency Channel Number (UARFCN), where Fcenter = UARFCN * 200 KHz

UMTS/WCDMA Spectrum

23

UMTS/WCDMA Bandwidth

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3GPP Standards

Release 99

• FDD and TDD at 3.84 Mcps
• Services as in GSM/GPRS
• Support for Multicall
• Location Services

Release 4

• TDD at 1.28 Mcps
• UTRA Repeater
• Core Network Transport to IP
• Non-transparent Real-Time

Facsimile

Release 5

• UTRAN Transport to IP
• IP Based Multimedia Services
• A-GPS with Open Interface

for SMLC and RNC

• HSDPA

HSDPA

• Included in Release 5
• Adaptive modulation and coding
• Multiple codes allocation
• Physical Layer HARQ
• DL Rates as high as 10 Mbps

HSUPA

• Release 6 & 7
• New Channels Added (E-DCH)
• New Physical Dedicated

Channels for UL and DL

• UL Rates as high as 5.4 Mbps

HSPA Release 7+ Release 8

• Long Term Evolution (LTE)
• New Access Technology

based on OFDMA, CDMA and TDMA

• DL Rates as high as

100Mbps

• UL Rates as high as 50Mbps

Network Architecture

26

UMTS Network Topology

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WCDMA R5 Network Architecture

GSM /GPRS BSS BTS BSC NodeB RNC PCU UTRAN SCP SMS SCE HLR/AUC/HS S SGSN CG BG GGSN

GPRS backbone MG W MG W

VMSC Server GMSC Server IP/ATM Backbone

CS domain PS domain Iu-CS Iu-PS

IP backbone MRFP

IMS domain

MGW

P-CSCF S-CSCF MGCF MRFC

SS7 PSTN/PLMN Internet, Intranet

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WCDMA RAN Architecture

RNS RNC RNS RNC Core Network Node B Node B Node B Node B Iu Iu Iur Iub Iub Iub Iub Previous interfaces with new identities New Interfaces like Iur

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RL NodeB RB RNC RAB CN UE

RL: Radio Link RB: Radio Bearer RAB: Radio Access Bearer

Link Types

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UE Modes of Connection

 Idle Mode

• (No active Connection)

 Cell_DCH

• CS and PS Call connected

with handover

 Cell_FACH

• PS Connected with Cell

Update

 Cell_PCH

• PS Dormant with Cell Update

 URA_PCH

• PS Dormant with URA Update

Codes and Channels

32

• OVSF Codes: Orthogonal Codes
• Gold Codes: Spreading Codes
• DL PSC: 512, SSC: 7680
• UL Scrambling Codes: 16.8 million

Codes in UMTS/WCDMA

33

OVSF codes (Walsh) are completely orthogonal and their mutual correlation is zero. SF = 1 SF = 2 SF = 4

Cch,1,0 = (1) Cch,2,0 = (1,1) Cch,2,1 = (1,-1) Cch,4,0 =(1,1,1,1) Cch,4,1 = (1,1,-1,-1) Cch,4,2 = (1,-1,1,-1) Cch,4,3 = (1,-1,-1,1)

OVSF OVSF & & Walsh Walsh

34

Purpose of OVSF

 Downlink SF of typical service

Typical service Data rate Downlink SF AMR 12.2, kbps 128 VP 64kbps 32 144kbps 144kbps 16 384kbps 384kbps 8 HSDPA 14.4mbps for one cell 16

35

Physical Layer Procedures

36

Traffic Channel（TCH） Control Channel（CCH）

Dedicated Traffic Channel （DTCH） Common Traffic Channel （CTCH） Broadcast Control Channel （BCCH） Paging Control Channel （PCCH） Dedicated Control Channel （DCCH） Common Control Channel （CCCH）

UMTS Logical Channel

37

Broadcast Channel BCH Forward Access Channel FACH Paging Channel PCH Random Access Channel RACH Dedicated Channel DCH

• DCH includes uplink and downlink

Common transport channel Dedicated transport channel

UMTS Transport Channel

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Channel Mapping

39

Node B UE

P-CCPCH- Primary Common Control Physical Channel SCH – Synchronous Channel P-CPICH – Primary Common Pilot Channel S-CPICH – Secondary Common Pilot Channel Cell broadcast channels DPDCH – Dedicated Physical Data Channel DPCCH – Dedicated Physical Control Channel Dedicated channel Paging channel PICH – Paging Indicator Channel S-CCPCH – Primary Common Control Physical Channel PRACH – Physical Random Access Channel AICH – Acquisition Indicator Channel Random access channel HS-DPCCH – High Speed Dedicated Physical Control Channel HS-SCCH – High Speed Shared Control Channel HS-PDSCH －High Speed Physical Downlink Shared Channel High speed downlink shared channel

Functions of Physical Channel

LTE Overview

41

Long Term Evolution

 The Third Generation Partnership Project (3GPP) has

approved the functional freeze of LTE (Long Term Evolution) as part of 3GPP Release 8 - 11th December 2008

 Orthogonal Frequency Division Multiplexing (OFDM) has

been selected for the Downlink and Single Carrier- Frequency Division Multiple Access (SC-FDMA) for the

• Uplink. The Downlink will support data modulation

schemes QPSK, 16QAM, and 64QAM and the Uplink will support BPSK, QPSK, 8PSK and 16QAM.

 Supports MIMO and SMART Antenna technology

42

LTE Performance Requirement

Metric Requirement

Peak Data Rates DL: 100 Mbps UL: 50 Mbps (for 20MHz spectrum) Mobility Support Up to 500kmph Optimized to 0 to 15kmph User Plane Latency <5ms Control Plane Capacity >200 users per cell (for 5MHz spectrum) Coverage (Cell Size) 5 ~ 100km with slight degradation after 30km Spectrum Flexibility 1.25, 2.5, 5, 10 and 20 MHz

43

LTE Logical Channels

 Control Channel

• Broadcast Control Channel (BCCH)
• Paging Control Channel (PCCH)
• Common Control Channel (CCCH)
• Multicast Control Channel (MCCH)
• Dedicated Control Channel (DCCH)

 Traffic Channel

• Dedicated Traffic Channel (DTCH)
• Multicast Traffic Channel (MTCH)

44

LTE Transport Channels

 Downlink Channels

• Broadcast Channel (BCH)
• Downlink Shared Channel (DL-SCH)
• Paging Channel (PCH)
• Multicast Channel (MCH)

 Uplink Channels

• Uplink Shared Channel (UL-SCH)
• Random Access Channel (RACH)

45

LTE Entities

 Evolved NodeB (eNB)  Evolved Radio Access Network (eRAN)  Serving Gateway (SGW)  Mobility Management Entity (MME)  Packet Data Network Gateway (PDN GW)

46

LTE Advance

 ITU has introduced a term IMT-Advanced for

mobile systems beyond IMT-2000 scope.

 In June 2008, 3GPP held two workshops on

“Requirements for Further Advancements for E-UTRA”

 IMT-Advanced 3GPP RAN working on LTE-

Advanced

UMTS Deployment and General Aspects

48

UMTS Global Facts

 WCDMA Subscribers

351m

 HSPA Subscribers

79m

 HSPA Devices

>1000

 UMTS Deployments

260 in 105 countries

 HSDPA Deployments

230 in 90 countries

UMTS Forum – 26 Jan 2009

49

Regional Status

Middle East and North Africa

Saudi Arabia, Kuwait, Oman, Bahrain, Yemen, UAE, Qatar Egypt, Libya, Algeria, Morocco, Turkey, Iran, Iraq and Afghanistan

SAARC Central Asia

India, Bangladesh, Maldives, Bhutan, Afghanistan, Sri Lanka. Nepal Kyrgyzstan, Armenia, Georgia, Tajikistan, Uzbekistan, Mongolia

50

UMTS Vendors

 Ericsson  Huawei  LG  Alcatel-Lucent  Motorola  Nokia Siemens Network  Samsung  NEC  Nortel Networks  ZTE

51

Pakistan T&T 1962 Two AMPS Cellular Licenses 1989 Paging License 1990 Card Payphone Licenses 1991 01st GSM License 1992 Paging Licenses 1993 DNOP/VAS Licenses, 1994 Telecom Sector Reorganisation 1994 Onward s PTCL WLL 1994 PTCL gets GSM License 1999 Launch of New Mobile/WLL/ LDI Companies 2004 Onwards PTCL Privatisation 2005 Onwards 1947 Post and Telegraph Dept Pakistan IT Policy 2000 Deregulation

• f state

monopoly 2002 Onwards

2.1 2.3 2.4 2.5 3.1 4.0 4.6 6.3 7.0 11.0 35.0 45.0 54.0 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008

Road to Deregulation Competition

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 MOITT (Ministry of IT and Telecoms)

• Generation of Policy, and Oversight on PTA, FAB, PSEB, USF,ICT R&D Fund and PTCL.

 PTA (Pakistan Telecom Authority)

• Regulates the establishment, operation and maintenance of telecommunication systems
• Responsible for promoting & development of telecommunication systems and services

 FAB (Frequency Allocation Board)

• Allocates radio frequency spectrum to the Government, providers of telecommunication

services, radio and television broadcasting operators, public and private wireless operators and others

• Separate from, but reporting to (at least in theory) PTA.

 NTC (National telecommunication Corporation)

• Limited mandate to provide services to the Government

 SCO (Special Communications Organization)

• Limited mandate to provide services to Azad Kashmir

Pakistan Government Telecommunication Bodies

53

UMTS in Pakistani Scenario

 At least two licenses were committed for auction

in IM issued by MoIT. (Each of 10 MHz)

 PTA and FAB has to clear the 3G spectrum in

2.1GHz band by the end of 2006.

 Delays due to:

• Reluctance of Operators
• Economic and Political Conditions of Pakistan
• Declining ARPU
• Un-identified Killer Application

Question & Answers

55

References



WCDMA(UMTS) Overview, QUALCOMM UMTS University.



WCDMA for UMTS: Radio Access for Third Generation Mobile Communications, H. Holma and A. Toskla, Second Edition, John Wiley and Sons, 2002.



HSDPA: Protocol and Physical Layer, Qualcomm UMTS University.



HSUPA:Protocol and Physical Layer, Qualcomm UMTS University.



LTE Technical Overview (whitepaper) Motorola



UMTS Forum (www.umts-forum.org)



UMTS World (www.umtsworld.com)

Thank You

Shariq Yasin shariq@3gca.org