| 摘要 |
PURPOSE: A method for controlling the transmit output power level in a wireless communication system is provided to suitably adjust the gain of a transmitter by detecting a gain according to the input power level and output power level of the transmitter and compensating the gain as much as a regular output power value. CONSTITUTION: If a TPTL control function execution command is received from an operated(301), an RFC(Radio Frequency Controller) measures the present Tx_IN_PWR(Transmit Input Power) level, the present TxFU_PWR(Transmit Front end Unit output Power) level fed back from a TxFU and the present Tx_OUT_PWR level of a UPC(UP Converter) through measuring devices #1-#3 respectively(302). Then the RFC stores the measured parameter values, the first parameter values, in a memory(303). Afterwards the UPC adjusts the transmit gain of the TxFU through a gain adjustment unit as much as a changed gain for the UPC transmit output power value(304). After gain adjustment, the UPC remeasures the Tx_IN_PWR level, the TxFU_PWR level and the Tx_OUT_PWR level through measuring devices #1-#3 respectively(305). Then the UPC compares the remeasured Tx_OUT_PWR level with a set value based on the TPTL command(306). If the remeasured Tx_OUT_PWR level is identical to the set value, the UPC stores the remeasured parameter values, the second parameter values, in the memory(307) and sends a TPTL control function complete message to the RFC(308).
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