ENABLING SECONDARY USER COEXISTENCE ON DYNAMIC SHARED SPECTRUM WITH PRIMARY USER

摘要

Systems, methods and instrumentalities are provided to implement a mechanism of a secondary user (SU) system coexisting with a primary user (PU) system. The SU system may gather information associated with the operation cycle(s) of the PU system of a shared channel. An operation cycle of the PU system may include a quiet phase and a pulse phase. For example the SU system may gather information associated with the operation cycle of the PU system. Such information may include pulse phase duration, pulse duty cycle, and/or allowed hopping sequences, etc. Based on information associated with the operation cycle of the PU system, the SU system may transmit or schedule transmission on the shared channel during the quiet phase of the PU operation cycle. The SU system may perform interference mitigation based on the timing of the pulse phase.