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EV-DO: CDMAs Alternative to HSPA
Ovum, June 2006, Pages: 18
CDMA is the second most widely deployed cellular network technology. Originally limited to the Americas and a few developed Asian countries, it has made inroads into other parts of the world, notably India and Eastern Europe.
There were 293.8 million CDMA subscribers worldwide at the end of 2005, on a total of 2.1 billion cellular connections. cdmaOne connections only represent 20% of total CDMA connections, while CDMA2000 1XRTT connections represent 72% of total CDMA connections. The remaining connections are CDMA2000 1XEV-DO, and this proportion is forecasted to significantly rise in the next five years, reaching 123 million connections in 2010.
EV-DO Revision 0 provides theoretical downlink speeds of up to 2.4Mbit/s and was first deployed in South Korea in 2002 by SKT. The launch of EV-DO was a great success, reaching the million subscribers milestone only eight months after launch. As of the end of March 2006, 8.7 million SKT subscribers owned an EV-DO handset. Big mobile operators such as Verizon Wireless, Sprint and KDDI have followed the Korean operator. EV-DO is mainly active today in North America and in Asia-Pacific.
The next step is the provision of EV-DO Revision A services, which are not just improving the data rate in both downlink (up to 3.1Mbit/s) and uplink (up to 1.8Mbit/s) but also significantly enhancing the quality of service (QoS) mechanisms, opening the door to richer and more interactive services such as mobile VoIP. Sprint-Nextel and KDDI are proving the most aggressive players, with Revision A rollouts beginning in late 2006.
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