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A data enhancement for W-CDMA will deliver average packet-data throughput rates of 550Kbps to 1,100Kbps and peak theoretical rates of 14Mbps, according to a white paper prepared for 3G Americas.
That compares to W-CDMA's current average data rates of 220Kbps to 320kbps, said the group of manufacturers and carriers. The group's mission is to promote the deployment of GSM, GPRS, EDGE and W-CDMA technology.
The enhancement is called High Speed Downlink Packet Access (HSDPA). The white paper, prepared by independent wireless consultant Peter Rysavy of Rysavy Research, also confirmed expected data rates of commercial EDGE and W-CDMA networks.
The EDGE and W-CDMA technologies are in various stages of readiness to deploy by more than 100 operators, the group said. W-CDMA is in use in six major U.S. cities and, worldwide, in 46 networks in 24 countries, 3G Americas' president Chris Pearson said. The Rysavy paper “validates what has been accomplished with EDGE, currently hitting the 'sweet spot' of data users at 100-plus Kbps,” he noted (see table below). According to the paper:
EDGE more than triples GPRS data throughputs, delivering typical rates of 100Kbps to 130Kbps.
UMTS offers average data rates of 220Kbps to 320kbps.
W-CDMA with HSDPA will provide average speeds of 550Kbps to 1,100 kbps, with peak rates of 14Mbps and even lower latency than W-CDMA.
W-CDMA, the report said, also supports two-way video calls.
The HSPDA enhancement will outperform the proposed Revision A enhancement to cdma2000 1xRTT (EV-DO), which promises peak downloads of 3.1Mbps.
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