Nokia and CSL demonstrate HSDPA-EDGE service continuity

Hong Kong mobile operator CSL and Nokia have demonstrated the industry’s first seamless service continuity between HSDPA and EDGE networks. In practice, this means seamless hand-overs from HSDPA to EDGE and back without service interruptions.

With the Nokia HSDPA and EDGE solutions, CSL can offer its customers data services such as fast Internet access, rapid email and high-quality video streaming. The demonstration took place as part of HSDPA testing in CSL’s live network using Nokia’s HSDPA solution.

The service continuity between the HSDPA and EDGE networks was demonstrated with large file downloads with commercially available HSDPA/EDGE devices. During the test download speeds of 1.6 Mbps were steadily achieved in HSDPA.

After moving away from the HSDPA coverage area the service was seamlessly handed over to EDGE and continued at 200 kbps download speed. The same performance was also achieved when the download started in EDGE and upgraded to HSDPA as soon as the HSDPA coverage was available again. In addition to offering high-quality services to consumers using a multiradio network, this smooth system change allows CSL very flexible HSDPA roll-out possibilities.

Nokia’s high-performing, cost-optimized HSDPA is a simple software upgrade to Nokia WCDMA networks, offering average data speeds of 1-2 Mbps in the first phase. Later HSDPA supports up to 14.4 Mbps according to the industry standard. Nokia is a leader in the multiradio market, with over 20 HSDPA contracts globally, 53 EDGE network references and supplying to over half of the commercial WCDMA/EDGE operators.

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