There are provided a method for controlling communication of a radio terminal with a radio base station at transmission power granted by the radio base station at a request of the radio terminal to the radio base station. In this way, a network of capillary passageways are formed between the particles and vapor-vents through the capillary structure so as to aid in the transfer of working fluid by capillary action, while the plurality of fillets provide enhanced thermal transfer properties between the plurality of particles so as to greatly improve over all heat transfer efficiency of the device. A current setting device is configured to set an electrical current supplied to a solenoid so as to close an output oil passage when a modulator valve is normal and to open the output oil passage when an open failure occurs in the modulator valve, while the solenoid valve is conductive. In the Proxy Mobile Internet Protocol domain, network sharing and load balancing are properly supported, the network is more reliable, and it is convenient for the operator to deploy the network massively. The QSG provides fast frequency tracking of the input signal and excludes any high-frequency content the input signal.