1. Wichita State University Computer Science 1 A Study of Next Generation of Mobile Telecommunication Name: Lee, Jungwon Prof.: Dr. Chang CS898t Mobile Communication

2. Wichita State University Computer Science 2 Content  History of Mobile Communication  2G Mobile (Comparison Between CDMA & GSM)  3th Generation Mobile Standards  4G Mobile 4G Vision and Scope

3. Wichita State University Computer Science 3 History of Mobile Communication

4. Wichita State University Computer Science 4 2G of Mobile Communication  GSM (Global System for Mobile Communication) Groupe Spécial Mobile (GSM) to study and develop a pan­ European public land mobile system Deployed in mid 1991 in Europe  IS-95 (CDMA) Idea from military & Developed by Qualcomm Using CDMA (Code Division Multiple Access) One Frequency all the time

5. Wichita State University Computer Science 5 Comparison Between CDMA & GSM IS-95(CDMA)GSM Frequency800-1900900-1900 Bandwidth1.25MHz200KHz Voice codec8-13Kbit/s13Kbit/s Data bit rate9.6Kbit/s Comparison between CDMA and GSM Standard Fig. 1

6. Wichita State University Computer Science 6 3G Mobile Communication (WCDMA & CDMA2000)  Promise of 3G Subscriber can access WWW (World Wide Web) High speed data transfer – 133Kbps(high mobility), 384Kbps(restrict mobility), 2Mbps(indoor) Messaging – email, fax, etc. Medium-rate multimedia – Internet access, educational High-rate multimedia – file transfer, video High-rate interactive multimedia – video teleconferencing, telemedicine, etc. Mobility: quasi-stationary to high-speed platforms Global roaming: ubiquitous, seamless coverage Evolution from second generation systems

7. Wichita State University Computer Science 7 Overview of WCDMA  WCDMA (Wideband CDMA) Became to standard for IMT-2000 in 1998 by ITU (International Telecommunication Union) Developed from GSM/GPRS WCDMA handles up to 2 Mbps for local area access or 384 Kbps for wide area access. GSM to WCDMA, protecting investments by re-using the GSM core network and 2G/2.5G services Wideband direct-sequence spreading  3.84 Mcps chip rate  Spreading gains (ratios) from 4 to 512

8. Wichita State University Computer Science 8 Overview of WCDMA Cont.

9. Wichita State University Computer Science 9 CDMA2000 Family  1xEV-DO and 1xEV-DV are both backward compatible with CDMA2000 1X  CDMA2000 1X First commercial CDMA2000 1X launched at South Korea in 2000. 144 Kbps data transfer rate  CDMA2000 1X EV/DO (Data only) True 3G mobile network Data transfer rate - 2.4 Mbps and average should be 621 Kbps  CDMA2000 1X EV/DV (Data & Video) EV/DV technology is still in research area CDMA2000 1xEV/DV provides integrated voice and simultaneous high-speed packet data multimedia services at speeds of up to 3.09 Mbps.

10. Wichita State University Computer Science 10 CDMA2000 Family Cont.

11. Wichita State University Computer Science 11 WCDMA Vs. CDMA2000  There are too many opinion between these two standards

12. Wichita State University Computer Science 12 4G Mobile Telecommunication  Promise of 4G Support terminal and personal mobility Flexible roaming and hand-over supported To other different systems and networks Efficient support of various services Including symmetrical and asymmetrical services  (Broadcast and distribution services) Maintaining QoS (comparable with wire-line network) Target mobility and information bit rates  2 Mbps (250 Km/h)  20 Mbps (60 Km/h)  100 Mbps (3 Km/h)

13. Wichita State University Computer Science 13 4G Mobile Telecommunication Cont.  Promise of 4G Economic deployment of systems With optimized radio interfaces Among macro cells, micro cells, indoor, hot spots and broadcast networks To accommodate mixed-mode multi-standard services To employ any future services  Why needs 4G Maximum data rate in the air (3G)  2Mbps Separate Core Networks  Voice Core Networks  Data Core Networks Non-perfect global roaming supported

14. Wichita State University Computer Science 14 4G Vision (ITU)

15. Wichita State University Computer Science 15 Idea of 4G

16. Wichita State University Computer Science 16 4G Technology  OFDM (Orthogonal Frequency Division Multiplex) Technology that transmits data simultaneously over a large number of channels at different frequencies, enable to send an large data Using in IEEE 802.11a & g, Hiper-LAN II and IEEE 820.16 BWA  Smart Antenna A smart antenna system combines multiple antenna elements with a signal-processing capability to optimize its radiation and/or reception pattern automatically in response to the signal environment. Amplify the frequency to user who wants to communicate Can adopt to OFDM & SDR

17. Wichita State University Computer Science 17 4G Technology Cont.  SDR (Software Defined Radio) From military research (SPEAKeasy Project) SDR technology is enabling frequencies and communications methods and to be changed flexibly by means of software. It responses to Internet Protocol version 6 (IPv6). MBMMR forum (MultiBand,MultiMode, Radio) Still in research area

18. Wichita State University Computer Science 18 Roadmap of 4G Phase 1Phase 3 Core cellular3.5G4G Speed30 Mbps50 – 100 Mbps Service levelHigh level application service Service with higher-level authentication and security Main userAdvancedGeneral FunctionsBasic FunctionFully fledged System Year20072010 Seamlessness with other systems Flexible realization of seamlessness with other system Seamlessness with no awareness thereof Next Generation Mobile Communication (Ichiro)

19. Wichita State University Computer Science 19 Question?