| 摘要 |
To economize power consumption of a portable radio terminal without impairing the transmission quality, a portable radio terminal of the invention comprises: a field intensity detector (3); a transmission unit (6); a switch (8) for supplying or cutting a power supply to the transmission unit; a memory (5); means (15) for setting the portable radio terminal to operate in a power economy mode; and a control unit (4) for controlling, when the portable radio terminal is set to operate in the power economy mode, the switch to cut the power supply to the transmission unit when the receiving field intensity becomes lower than a first threshold value and to supply the power supply to the transmission unit when the receiving field intensity is higher than a second threshold value, the memory to store the signals to be transmitted during a time interval when the power supply is cut, and the transmission unit to transmit the signals stored in the memory when the power supply is supplied to the transmission unit. <IMAGE> |
