Light Reading Mobile reports that T-Mobile Austria has switched on commercial LTE networks in the city of Innsbruck, Austria. The operator said it will invest EUR500 million in the network through 2014, and aims to cover 25 percent of the Austrian population with the new technology by 2013. At the same time, Light Reading Mobile said the operator is also upgrading its 3G network to support HSPA+ speeds up to 21 Mb/s.