Patent ID: 7561859
Filing Date: 2009-07-14
Classification: G06F

Abstract:
1. A wireless communication terminal comprising: a transmitting unit that transmits data to a wireless base station; a temperature detecting unit that detects a terminal temperature of the inside of the wireless communication terminal; a transmission power detecting unit that detects a transmission power; a memory unit that stores plural sets of terminal temperature variation information, each of the plural sets of terminal temperature variation information being related to a time-variation of the terminal temperature, the time-variation of the terminal temperature being defined with reference to an ambient temperature, the time-variation of the terminal temperature being caused by changing a first one of predetermined plural transmission powers to a second one thereof different from the first one; and a control unit that changes the transmission power based on a state of communication with the wireless base station, the control unit selecting and reading one of the plural sets of terminal temperature variation information from the memory unit, based on the ambient temperature, the transmission power detected by the transmission power detecting unit, and the second one of the predetermined plural transmission powers, and the control unit controlling the state of transmission of the data based on the selected one of the plural sets of terminal temperature variation information, so as to prevent the terminal temperature from increasing over an upper limit of a predetermined operation guarantee temperature range.