In a nutshell, the FCC is attempting to optimize use of a limited quantity of radio frequencies by letting companies fill unused or underused channels with 5G data.
Formerly known as LightSquared, Ligado holds 40MHz of spectrum spread across multiple 1.5GHz and 1.6GHz channels, the former coming close to GPS satellite frequencies but not overlapping them.
The L-band channels could be used for both downloading and uploading data or dedicated just to uploading, a weakness in current 4G and 5G cellular systems.
For the past decade, Ligado has been prevented from using its L-band frequencies because they’re close to location satellite channels.
To secure FCC backing, it says it will avoid using frequencies close to GPS channels and reduce the strength of its base stations.

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