Abstract: A wireless base station unit (100) monitors total transmission power, which is a sum of transmission power to all of mobile station terminals (200-203) connected for communication. When the total transmission power exceeds a first threshold value, which is a criterion for judging whether to reduce the transmission power or not, an upper limit value of the transmission power to the mobile station terminal at the lowest priority level is reduced by a prescribed quantity. When the total transmission power exceeds a second threshold value, which is larger than the first threshold value, communication connection with the mobile station terminal at the lowest priority level is cut.

Abstract: Radio base station apparatus 100 of the present invention monitors total transmission power which is the sum of transmission power for all mobile station terminals 200-203 connected for communication, reduces the upper limit of transmission power for the lowest prioritized mobile station terminal by a predetermined amount when the total transmission power exceeds a first threshold which is referenced to determine whether or not the transmission power has been reduced, and terminates communication with the lowest prioritized mobile station terminal when the total transmission power exceeds a second threshold which is larger than the first threshold.

Abstract: A method includes establishing a plurality of radio links between a plurality of mobile devices and a base station. Here, the plurality of mobile devices communicate with the base station via the plurality of radio links. The method may further comprise assigning each of the plurality of radio links a plurality of radio resources, selecting at least one radio link from the plurality of radio links based on priority levels that are set for the plurality of radio links, respectively, releasing at least one but not all of the plurality of radio resources from the selected radio link, and assigning at least one of the released radio resource to a new radio link which is established.