Abstract: An LTE preemption system may allow authorized users to access LTE spectrum when needed by the authorized users and allow commercial users to access the LTE spectrum when not in use by the authorized users. An authorized transmission unit may transmit noise in at least one of a primary synchronization channel, a secondary synchronization channel, or a physical broadcast channel. The noise may prevent commercial users from accessing the LTE spectrum. At least one of the primary synchronization channel, the secondary synchronization channel, or the physical broadcast channel may be offset by a known time or frequency, and authorized devices may utilize the LTE spectrum by searching for the channels at the offset locations.