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1. CDMA2000 – Overview Code Division Multiple Access 2000

2. Introduction to CDMA2000 • CDMA2000 (Code Division Multiple Access 2000) is a 3G standard. • It evolved from IS-95 (cdmaOne). • Provides higher data rates, improved capacity, and multimedia support. • Uses Code Division Multiple Access technique.

3. Evolution of CDMA2000 2G → IS-95A / IS-95B (cdmaOne): Voice & Low-speed data 3G → CDMA2000 family: High-speed data, Internet, Multimedia

4. CDMA2000 Family 1. CDMA2000 1xRTT – Voice & data up to 153 kbps. 2. CDMA2000 1xEV-DO – High-speed data up to 14.7 Mbps. 3. CDMA2000 1xEV-DV – Voice + Data simultaneously.

5. Key Features • Backward compatible with IS-95. • High data rates and efficient spectrum use. • Always-on connectivity with soft handoff. • Flexible Quality of Service (QoS).

6. Architecture Components • Mobile Station (MS) • Base Transceiver Station (BTS) • Base Station Controller (BSC) • Packet Data Serving Node (PDSN) • Mobile Switching Center (MSC)

7. Data Rates Summary 1xRTT: 153 kbps 1xEV-DO Rev 0: 2.4 Mbps 1xEV-DO Rev A: 3.1 Mbps 1xEV-DO Rev B: 14.7 Mbps

8. Advantages of CDMA2000 • Backward compatible with IS-95 • High capacity and coverage • Efficient bandwidth usage • Supports voice, data, multimedia • Scalable and flexible deployment

9. Applications • Mobile Internet access • Video streaming • Multimedia messaging (MMS) • Voice over IP (VoIP) • Broadband wireless services

10. Comparison: CDMA2000 vs WCDMA CDMA2000: • 1.25 MHz bandwidth • Origin: Qualcomm (USA) WCDMA: • 5 MHz bandwidth • Origin: ETSI (Europe)