Nokia and CSL demonstrate seamless HSDPA-EDGE service continuity

(PresseBox) ( Hong Kong, China, )
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. The demonstration affirms Nokia's leadership in multiradio network interworking and shows CSL's drive to provide high-quality data services to its customers.

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.

"The quality of the voice and data services that we offer to our customers has always been extremely important to CSL," says Adam Wong, Director, Mobile Networks at CSL "With Nokia's HSDPA solution and optimization experience of both companies, we can make sure that our customers enjoy seamless high-speed services once we launch HSDPA commercially."

"Nokia is strongly committed to the multiradio evolution. We are pleased to continue our successful co-operation with CSL by supporting their success in 3G and smooth evolution towards HSPA," says Robin Lindahl, Vice President, Networks, Nokia.

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.

Nokia and CSL have been working together since 1991. Nokia has supplied CSL GSM/GPRS/EDGE and WCDMA 3G networks.

About CSL
CSL is a pioneer in the mobile communications market in Hong Kong. The Company launched its mobile services in 1983, and today operates a world-class GSM/WCDMA network through its mobile brands: 1O1O and One2Free. Pioneer to introduce HSCSD, GPRS, EDGE, MMS and video sharing service the Company launched 3G and Wi-Fi Service In December 2004. CSL is 100% owned by Telstra. For more information about CSL, please visit
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