FCC Chairman Julius Genachowski on Thursday detailed plans to offer additional wireless spectrum to mobile carriers. The agency is on track to free up 300MHz of new spectrum that will be available for commercial use by 2015, IT World reports. Mobile carriers have been in dire need for additional spectrum, some have even turned to massive acquisitions and mergers in an effort to build-out their respective networks. Genachowski revealed that the FCC will auction several blocks in the AWS band essential for LTE networks to wireless carriers in 2015. The wireless trade association CTIA is not satisfied, however, and is seeking additional spectrum from the 800MHz band by 2015.