Mobile communication system, base station, network device, and control method and program thereof

摘要

In order to reduce interference to a macro user equipment by easily selecting a home cell serving as the source of interference to the macro user equipment and adjusting a transmission power or the like, a plurality of base stations (10—1 to 10—3) that constitute a mobile communication system (1) respectively form cells (11—1 to 11—3) for radio communication. A network device (50) causes candidates for a first base station that should perform reconfiguration of the cell among the base stations (10—1 to 10—3) to execute the reconfiguration. The candidates for the first base station are selected based on radio resources used by each of the base stations (10—1 to 10—3) at the time of forming the cells (11—1 to 11—3). Alternatively, the first base station is selected based on uplink interference to each of the base stations (10—1 to 10—3).

主权项

1. The mobile communication system comprising:
a macro base station (MNB) receiving interference radio resource information notified as a cause of occurrence of downlink interference from a macro user equipment (MUE), wherein the downlink interference affects downlink communication from the macro base station (MNB) to the macro user equipment (MUE); one or a plurality of Home Node B base stations (HNB); and a centralized radio network controller device (RNC) transmitting a request for updating configuration to at least one of the one or a plurality of Home Node B base stations (HNB) based on the interference radio resource information; the at least one of the one or a plurality of Home Node B base stations (HNB) determining whether or not to update its configuration based on uplink interference to the at least one of the one or a plurality of Home Node B base stations (HNB) wherein the uplink interference affects uplink communication from a home user equipment (HUE) to the at least one of the one or a plurality of Home Node B base stations (HNB), upon receiving the request for update.