Radio communication method, and radio communication system

A first radio communication system using a time division duplex scheme, the first radio communication system comprising:

• a receiver configured to receive information indicating a time division duplex configuration of a second radio communication system having a communication area that overlaps a communication area of the first radio communication system;
• and
• a processor configured to set a priority of a first slot, in which an uplink slot timing in the first radio communication system overlaps a downlink slot timing in the second communication system or a downlink slot timing in the first radio communication system overlaps an uplink slot timing in the second communication system, to be lower than a priority of a second slot, in which the uplink slot timing in the first radio communication system does not overlap the downlink slot timing in the second radio communication system or the downlink slot timing in the first radio communication system does not overlap the uplink slot timing in the second communication system, based on the time division duplex configuration acquired with respect to the second radio communication system,
• wherein the processor is configured to allocate resources to the slots of the first radio communication system according to the priorities of the slots,
• wherein the first slot also includes one or both of:
• a third slot, in which the uplink slot timing in the first radio communication system overlaps a downlink slot timing in the second radio communication system;
• and
• a fourth slot, in which the downlink slot timing in the first radio communication system overlaps an uplink slot timing in the second radio communication system, and
• wherein, when the first slot includes the third slot and the fourth slot, the processor set a priority of the third slot to be lower than the priority of the second slot and a priority of the fourth slot to be lower than the priority of the third slot.