(Telecompaper) Peruvian mobile operator Bitel has reiterated its plans to launch 4G-LTE services by the end of the year despite missing out on frequencies in the 700 MHz band made available in the country's recent auction. "Since Bitel began operating we have been using 3G technology that's more efficient in its use of spectrum and allows the deployment of 4G-LTE technology in the same bands with less investment," said the operator's CEO Tao Duc Thang in an interview with El Comercio. The local unit of Vietnamese state-run telco Viettel owns mobile spectrum in both the 900 MHz and 1,900 MHz bands and said it will be using its current concessions to roll out its 4G service by the end of 2016.