The company notes that the WCS spectrum was first auctioned in 1997, but has not been utilized for mobile Internet usage due to technical rules designed to avoid possible interference to satellite radio users in adjacent spectrum bands.
The WCS spectrum, on the other hand, has been dogged by interference issues with nearby satellite signals owned by Sirius XM, making it near impossible to get any kind of wireless broadband to work on those frequencies.
The company also recently resolved potential interference concerns with XM Sirius satellite radio that have kept it from making use of additional spectrum it held in the WCS band.
For reasons that were never entirely clear, the Obama FCC granted frequency to LightSquared that had originally been designated for satellite use but only if they could overcome the technical issues of interference and if they could bring their network offering on line within a stipulated time frame.