The FCC green-lighted LightSquared's request for permission to test the feasibility of sharing 5 MHz of spectrum in the 1675-1680 MHz band, which is controlled by federal agencies, according to a report in Wireless Week. The block sits next to the 1670-1675 MHz block, which LightSquared is licensed to use. The bankrupt firm, which will have three months to conduct its tests, pitched its spectrum-sharing plan to the FCC in late September. At the time, LightSquared also offered to give up terrestrial-usage rights for its frequencies in the 1545-1555 MHz band, where its technology was found to interfere with GPS devices. A court has given the company permission to control its bankruptcy through July 15. For more, see this Wireless Week article.