
Nokia Siemens Networks is implementing its Circuit Switched Fallback (CSFB) technology to enable CDMA and LTE technologies to work together in KDDI’s network in Japan. Nokia Siemens Networks’ CDMA-LTE CSFB solution is implemented via software on the existing CDMA 1X system, which interfaces with KDDI’s LTE network. Exhaustive trials of end-to-end CSFB have already been successfully conducted and the nationwide deployment will be completed by mid...