INTERFERENCE SUPPRESSION METHOD AND DEVICE IN SITUATION OF SPECTRUM SHARING BETWEEN DIFFERENT SYSTEMS

摘要

Disclosed are an interference suppression method and device in situation of spectrum sharing between different systems. By means of technical solutions in embodiments of the present invention, a terminal device meeting a preset rule is scheduled to work at a cognitive frequency band, and the other terminal devices are schedules to work at an authorized frequency band, thereby effectively reducing interference between two systems when a cognitive system and an authorized system share the spectrum, comprising interference of the authorized system to a downlink of the cognitive system and interference of the cognitive system to an uplink of the authorized system, and meanwhile effectively ensuring normal and stable working of the cognitive system at the cognitive frequency band. Therefore, the cognitive system uses idle spectrum resources of the authorized system with no/low interference, thereby improving the utilization of the spectrum and improving the link quality.