Receiver system and method for reducing inter-system interference

The invention proposes a receiver system and a method for reducing inter-system interference. The receiver system comprises a first receiver in a first system and a second receiver in a second system, wherein a received signal of the first receiver and a received signal of the second receiver each include a first target signal, a second target signal and a noise signal, transmission frequency spectra used by the first receiver and the second receiver are partially or totally overlapped, and a first processing unit of the first receiver performs signal detection and reconstruction on the first target signal to obtain a reconstructed signal; a first transmitting unit of the first receiver transmits a first signal to the second receiver, and the first signal includes the reconstructed signal or a residual signal formed by cancelling the received signal and the reconstructed signal; a second receiving unit of the second receiver receives the first signal; and a second processing unit of the second receiver determines the second target signal according to the first signal. Through signal reconstruction and cancellation between two different communication systems, the interference between the systems can be effectively reduced.