Patent ID: 8654717

Claim:
A base station apparatus to be used for a mobile communication system capable of providing communications using plural frequency carriers, the base station apparatus comprising: a frequency carrier selection unit configured to select one of a first frequency carrier and a second frequency carrier as a frequency carrier to be used for the communications based on at least one of a service type of the communications and a congestion degree of the communications, the first frequency carrier being used in Dynamic Scheduling for communications based on allocation in which radio resources are dynamically allocated, the second frequency carrier being used in Persistent Scheduling for communications based on allocation in which the radio resources are allocated at every predetermined period, wherein, when the service type is a voice service, the frequency carrier selection unit is configured to select one of the first frequency carrier and the second frequency carrier based on the congestion degree, and wherein, when the service type is a voice service, upon selecting the first frequency carrier, the frequency carrier selection unit is configured to determine whether a priority level with respect to a service requested by a mobile station communicating with the base station is high and select the second frequency carrier as the frequency carrier to be used for the communications when determining that the priority level is high.