Nokia and CSL demonstrate HSDPA-EDGE service continuity

February 14, 2006

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.