... System 9IS-54 and IS-136 9GSM 11cdmaOne (Based on IS-95-A and IS-95-B) 13Personal Communications System 15Third-Generation (3G) Wireless Technology 16 3G Requirements 18 Evolution to 3G Systems ... wassimilar to cdma2000, and the other was similar to theETSI/ARIB proposal.Thus, eventually, there were only 4 systems for 3G mobile com-munications— cdma2000, UWC-136, W-CDMA UMTS FDD, and W-CDMA ... 1.2 288 Mb/sModulation (for Digital Data) QPSK and OQPSK 8 Speech Coding Code Excited Linear Predictive Coder(CELP)—1.2, 2.4, 4 .8, 9.6 kb/s for Cellular IS-95 and CELP—14.4 kb/s for PCS IS-95Number...