Hideo Okinaka, the Vice President of Emerging Technologies and Spectrum Division at Japan’s KDDI Corp, has confirmed his firm is committed to deploying Long Term Evolution (LTE) technology, but will continue to operate its CDMA network for voice traffic. In a keynote discussion at 4G World, Okinaka said that KDDI has 20MHz of spectrum for LTE and is working on technical interoperability issues to ensure the network can fall back to CDMA2000 1x for incoming voice calls during a data session held over LTE. The cellco is looking to launch LTE commercially in 2012 and in its bid to best rival NTT DoCoMo, is looking to roll out the technology as fast as possible. It will use the 1500MHz and 800MHz bands and hopes to provide national mobile broadband coverage to 96.5% of the country by the end of 2014. Separately, KDDI also operates a WiMAX network, and Okinaka said that it is currently achieving downlink speeds of 30Mbps and is planning to upgrade to the 802.16m technology standard.