Patent ID: 8767711

Claim:
A base station apparatus, comprising: a PHY processing apparatus that performs a process related to a communicational PHY layer; and a MAC processing apparatus that performs a process related to a communicational MAC layer, wherein the PHY processing apparatus includes a synchronization processing unit that performs a synchronization process for synchronizing a communication frame processing timing of the PHY processing apparatus with a communication frame processing timing of other base station apparatus serving as a synchronization source, and the synchronization processing unit suspends transmission from the base station apparatus to a terminal device according to a timing that synchronization-processing-timing-information indicates; synchronization-processing-timing-information is reported from the MAC processing unit, the synchronization processing unit performs the synchronization process based on a transmission signal from the other base station apparatus; the transmission signal is received by the base station while transmission from the base station apparatus to the terminal device is suspended, the MAC processing apparatus includes a synchronization control unit that determines a timing for causing the synchronization processing unit to execute the synchronization process and reports information indicative of the determined timing as the synchronization-processing-timing-information to the PHY processing unit in a state where a communication frame processing timing of the MAC processing apparatus is synchronized with the communication frame processing timing of the PHY processing apparatus.