| 摘要 |
PURPOSE: A method for generating an alarm sound when attenuating a signal level of a mobile communication terminal is provided to treat a post measure by ringing the alarm sound in the mobile communication terminal in case that a subscriber leaves a conversation progressive cell or an intensity of a signal is considerably attenuated, or a conversation is impossible. CONSTITUTION: A terminal measures an electric wave receipt power transmitted from a BTS(Base Transceiver System) and includes receipt power information as a message type in a data frame to inform receipt power information to the BTS(S10). The BTS detects a reliability degree of the data frame with reference to error sensing relation information included in the data frame(S11). The BTS compares a calculated FER(Frame Error Rate) with intensity information to estimate an electric wave receipt power intensity of the terminal and senses that a subscriber leaves a cell through the estimated intensity(S12). If the estimated value obstructs the stability of a conversation, the BTS transmits an alarm generation control signal to an MSC(Mobile Switching Center)(S13). The MSC receives the alarm generation control signal, generates an alarm signal, and transmits the alarm signal through the BTS so that the terminal rings the alarm sound(S14). The user hears the alarm sound and treats a post measure(S15).
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