Ing Raul Bruzzone ORT University Montevideo URUGUAY Who

Ing. Raul Bruzzone ORT University Montevideo - URUGUAY

Who is participating in this Course? The participants of the Course are kindly invited to introduce themselves, expressing: l l Name Company, Academic Organization or Institution Department And to comment on the following question: – What I would like to receive from the Course ? October 21 Raul Bruzzone 2

Introduction This course is a detailed technical description of Code Division Multiple Access (CDMA) mobile communication systems, including cdma. One, cdma 2000 and UMTS. The largest part of the course is dedicated to Third Generation Mobile Communication Systems. October 21 Raul Bruzzone 3

Contents 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Course Overview Mobile Radio Propagation Code Division Multiple Access (CDMA) cdma. One (IS-95 B) UMTS Terrestrial Radio Access Network Architecture (UTRA) UTRA Physical Layer UTRA Communication Protocol Opportunity Driven Multiple Access (ODMA) cdma 2000 Wireless Access Protocol Strategic Vision of Third Generation Systems Market Perspective Conclusion 4

Slides Structure Reference for this Slide Date of Release of the Course October 21 Slide Number L 2_3 5

The Evolution of Mobile Communication 10/15/2021 Raul Bruzzone 6

Brief History of Mobile Communication Systems l l l l l 1979: AMPS is introduced in the USA 1981: NMT is introduced in Scandinavia 1982: CEPT creates Group Special Mobile (GSM) 1986: Nine GSM technical proposals are presented 1989: Digital AMPS (DAMPS) is standardized in USA 1991: First GSM networks are launched 1996: IS-95 CDMA is standardized in USA 1997: 200 GSM networks, 109 countries, 44 million users 1998: Five proposals for UMTS radio are presented 1999: ITU-R releases IMT-2000 radio specifications October 21 Raul Bruzzone 7

Spreading of Multimedia Services l l During the 90’s, Internet became a public service with widespread consumer acceptance (More than 1 million Internet subscribers in France). In addition to Text and Fixed Images, Internet provides audio and video. For example: – Real Audio – Cu. See. Mee Video Conference October 21 Raul Bruzzone 8

Conclusions Following the success of analog and digital mobile communication services, the next step is centered on l High-speed Wireless Internet and Multimedia Services l l 3 G networks are the support for this new generation of Mobile Services October 21 Raul Bruzzone 9

Relative Characteristics of Communication Systems MOBILITY MOBILE PORTABLE FIXED 9. 6 Kbps October 21 2 Mbps DATA RATE 10

Relative Characteristics of Communication Systems MOBILITY MOBILE PORTABLE ISDN FIXED 9. 6 Kbps October 21 B-ISDN 2 Mbps DATA RATE 11

Relative Characteristics of Communication Systems MOBILITY MOBILE PORTABLE Second Generation CORDLESS ISDN FIXED 9. 6 Kbps October 21 B-ISDN 2 Mbps DATA RATE 12

Relative Characteristics of Communication Systems MOBILITY MOBILE PORTABLE Second Generation CORDLESS ISDN FIXED 9. 6 Kbps October 21 Third Generation (IMT-2000) B-ISDN 2 Mbps DATA RATE 13

Relative Characteristics of Communication Systems MOBILITY MOBILE PORTABLE Second Generation MBS CORDLESS WLAN ISDN FIXED 9. 6 Kbps October 21 Third Generation (IMT-2000) B-ISDN 2 Mbps DATA RATE 14

End of the Introduction October 21 15

Coming Next. . . Mobile Radio Propagation 10/15/2021 16