US Patent 9497756 Base station radio resource management

A first base station may transmit a first physical downlink channel associated with one or more wireless devices in communication with the first base station, wherein the first physical downlink control channel is transmitted in fewer than all subframes of a frame and begins in time at a first symbol number in a series of symbols of a subframe. A second base station may transmit a second physical downlink control channel associated with one or more wireless devices in communication with the second base station. Second radio resources of the second physical downlink control channel may be configured based on the first symbol number of the first physical downlink control channel to manage overlap with first radio resources of the first physical downlink control channel.