Patent ID: 8483042

Claim:
A mobile communication system comprising: a first base station device; and a second base station device; wherein the first base station device and the second base station device are configured to carry out simultaneous communication with a mobile station device, wherein at least one communication channel composed of a combination of any time slot according to time division multiple access and any subchannel according to orthogonal frequency division multiple access is used in the communication, wherein a complex channel comprising one or more communication channels is used in the communication, wherein the first base station device notifies the second base station device of a time slot used in the communication with the mobile station device, wherein the second base station device allocates to the mobile station device at least one idle communication channel included in time slots different from the time slot notified by the first base station device, and wherein the first base station device, when the communication channel allocated to the mobile station device comprises a plurality of time slots, restricts use of some of the time slots constituting the communication channel.