Signal interference prevention circuit for cellular radio system

摘要

The circuit provides reception of signals between adjacent radio cells (Z1,Z2), which each have a transmitter (SEZ1,SEZ2) and a receiver (EZ1,EZ2), without interference by using multipliers (MS2,MS3) associated with the transmitters for shifting the frequency slots of the modulated signals. Similar multipliers (MEZ1,ME3) within the receivers are used for restoring the original frequency slots. The modulated signals are added at both the transmitters and receivers, with further multipliers (MZ1, MZ2, MEZ1,MEZ2) for multiplying the signals of the adjacent cells with constant of different signs.