2000 ball rolling, the CDG (CDMA Development Group) in 2009 provided a roadmap for CDMA2000 which includes two technologies as shown in Figure 5.12. The jury is still out to determine the success or failure of this roadmap: CDMA2000 1X Advanced: It is an evolution of CDMA2000 1X and will provide four times increase in voice capacity as compared to today's capacity of 35 simultaneous calls in 1.25 MHz of spectrum while delivering the same level of voice quality. This increase is primarily due to uplink and down- link interference cancellation, mobile receive diversity and several radio link enhancements that are included in 1X Advanced. The peak data rates will remain the same as IS-2000 Release A that is, 307 kbps in both directions. DO Advanced: DO Advanced is the evolution of EV-DO Rev. B and support up to 32 Mbps in the downlink and 12.4 Mbps in the uplink in a 5 MHz channel. To achieve these data rates 2x2 MIMO, 64 QAM in downlink and 16 QAM in the uplink will be required. CDG also claims that CDMA2000 will interoperate with wider-bandwidth OFDM-based technologies such as Fixed WiMAX (802.16d) for backhaul connectivity; DBV-H and Media-FLO for high-capacity broadcasting services; 802.11n for WLAN connectivity; and LTE and Mobile WiMAX (802.16e) for additional broadband capacity in densely populated hot-zones where the demand for mobile data is extremely high. 3GPP2 CDMA2000 1xEV-DO IX Enhancements IX Advanced CDMA2000 1X EVRC-B CLIC QQF NEW CHANNEL CARD 33-35 Enlargs 1.5X Increase 4X Increase DL & UL: 153 kbps in voice capacity5 in voice capacity2 (1.25 MHz, FDD) DL & UL 153 kbps DL & UL: 307 kbps Multi 1xEV-DO Rel. 0 1xEV-DO Rev. A Carrier Upgrade Advanced EV-DO Rev. B DL: 2.4 Mbps DL: 3.1 Mbps DL: 9.3 Mbps3 DL: 14.7 Mbps DL: 32 Mbps3 .3 UL: 153 kbps UL: 1.8 Mbps UL: 5.4 Mbps UL: 6.4 Mbps UL: 12.44 Mbps (1.25 MHz, FDD) (1.25 MHz, FDD) (5 MHz, FDD) (5 MHz, FDD) (4x1. MHz, FDD) 2013+ Notes: 1) Capacity increase is primarily due to new EVRC-B codec, handset interference cancellation (QIIC) and Quasi- Orthogonal