Wang Junxi. Agenda IntroductionTransmission Rate ImprovementStandardsUMTS OrganizationsUMTS Network ArchitectureBenefitConclusion.

Wang Junxi

Agenda

• Introduction

• Transmission Rate Improvement

• Standards

• UMTS Organizations

• UMTS Network Architecture

• Benefit

• Conclusion

Introduction: 1G to 3G

3

19991999199519951990s1990s1980s1980s1940s1940s

USUS

1950s1950s

EuropeEurope

< 1 million subscribers

cellular systems

~20 million subscribers

GSM

1G

2G

GSM900 GSM1800GSM1900

450 million subscribers 140 countries 400 networks

2.5GGPRSEDGE

3G

UMTSTD-SCDMA

IMT-2000

2.75G

Transmission Rate Improvement

Standards

3GPP(Third-Generation Partnership Project)

UMTS Organizations

SDOs.TSI (Europe),

Association of Radio Industries and Business/Telecommunication Technology Committee (ARIB/TTC) (Japan),

American National Standards Institute (ANSI) T-1 (USA),

telecommunications technology association (TTA) (South Korea),Chinese Wireless Telecommunication Standard (CWTS) (China).

UMTS Network Architecture

• Core Network• provide switching, routing and tran-

sit for user traffic.CN• UMTS Terrestrial Radio Ac-

cess NetworkUTRAN

• User Equipment• Node B counterpart, • RNC counterpart, • CN counterpart

UE

Benefit

Benefit-Web Services

• 3G will offer transparent HTML access in additionto cHTML, xHTMLVarious Microbrowsers for handhelds, PDAs andportable computers will be available.

• Higher Bitrates: HSDPA = 10 Mbps (ITU-R updateM.1457)

• Java Download

End-to-end harmonised 3G portalservices for mobile users

Conclusion

UMTS is the most efficient of all the 3G technologies.

UMTS network high traffic capacity.

Faster, Larger

References

Peter Rysavy , Voice Capacity Enhancements for GSM Evolution to UMTShttp://www.iec.org/online/tutorials/umts/index.asphttp://en.wikipedia.org/wiki/Universal_Mobile_Telecommunications_Systemhttp://www.umtsworld.com/technology/overview.htm#a3