DECENTRALISED CONTROL OF INTERFERENCE REDUCTION IN A WIRELESS COMMUNICATION SYSTEM

摘要

A first base station (14) in a wireless communication system (10) operating according to a synchronised time division duplex scheme comprises an antenna (24), a radio communication unit (26) and an interference handling module (28). The interference handling module comprises an interference investigating unit (30) and a transmission control unit (34) configured to provide a sounding frame in which a variable downlink time interval has a pre-defined size long enough to provoke interference, order the interference investigating unit to obtain and analyse a link quality data parameter in a non-downlink time interval and determine whether interference from another base station is present. The transmission control unit is further configured to order the radio communication unit (26) to reduce the size of following variable downlink time intervals according to an interference reduction scheme for obtaining time intervals with a guaranteed reduced size if interference from another base station is present.