Mobile communication terminal and method capable of quickly connecting with base station using efficient transmission power control

A method of controlling a transmission power of a wireless transmitter when a mobile communication terminal connects to a base station by using a nonvolatile memory, the method comprising:

• reading a recent power value of the wireless transmitter which successfully connected to the base station, from the nonvolatile memory;
• increasing a power value of the wireless transmitter by a predetermined amount to be greater than the recent power value until a connection to the base station succeeds, when the connection to the base station had failed with the recent power value;
• and
• storing the power value of the wireless transmitter which successfully connected to the base station as the recent power value in the nonvolatile memory according to the increasing a power value of the wireless transmitter.

A mobile communication terminal comprising:

• a nonvolatile memory storing a recent power value of a transmitter which successfully connected to a base station;
• and
• a control unit controlling the transmitter to transmit a signal to the base station according to the recent power value stored in the nonvolatile memory for a connection to the base station, and determining a success of the connection when a corresponding response is received from the base station, or determining a failure of the connection when the corresponding response is not received from the base station,
• wherein the control unit decreases the power value of the transmitter by a predetermined amount to be less than the recent power value until the connection to the base station fails and stores the power value of the transmitter which successfully connected to the base station immediately prior to the power value with which the connection to the base station fails, as the recent power value in the nonvolatile memory, when the connection to the base station was successful with the recent power value.

A mobile communication terminal comprising:

• a nonvolatile memory storing a recent power value which successfully connected to a base station;
• a wireless transmitter transmitting a signal for a connection to the base station;
• a wireless receiver receiving a signal from the base station responding to the signal which the wireless transmitter transmits;
• and
• a control unit controlling the wireless transmitter to transmit the signal for the connection to the base station according to the recent power value stored in the nonvolatile memory for the connection to the base station, and determining a success of the connection when a corresponding response is received from the base station, or determining a failure of the connection when the corresponding response is not received from the base station,
• wherein, the control unit increases the power value of the wireless transmitter by a predetermined amount to be greater than the recent power value until the connection to the base station succeeds, and stores the power value of the wireless transmitter which successfully connected to the base station as the recent power value in the nonvolatile memory, when the connection to the base station fails with the recent power value.