www.WirelessFederation.com/news: Elisa, the Finnish mobile operator and NSN have demonstrated a new technology that enables mobile operators to raise voice capacity of their 3G network cost effectively, up to 100%. The trial call was conducted in Elisa’s live 3G network using R&D prototype devices supplied by Nokia, demonstrating was of the world’s first circuit switched call over a high speed packet access network (CSoHSPA).
The companies explained that mobile systems such as GSM are designed to carry each voice call via a dedicated voice channel and the process is called as circuit switching.
The CS over HSPA feature carries voice calls over HSPA’s packet-based transport channels instead. The mobile subscribers would see no difference in their voice service, the CSoHSPA technique, when supported by the continuous packet connectivity (CPC) features of 3GPP Release 7, requires far less handset battery power.