| 摘要 |
CDMA base-station comprising a transmit stage ( 2, 4, 7, 9, 10, 11, 12 ) and a receive stage ( 3, 5, 8, 13 ) for communicating with mobile terminals has been provided. The transmit stage comprises a multi carrier power amplifier having at least two independent power modules ( 10, 11 ) for transmitting signals on at least one traffic channel (TCH) and control and pilot signals on at least one control channel (CCH). Each power module ( 10, 11 ) is capable of being operational although the other power module is non-operational. The at least two power modules are normally operating simultaneously and each is contributing with emitting power. The CDMA base station moreover comprises a control module ( 16 ) monitoring the error status of the power modules in the base station. When an error signal is detected in base-station indicative of an error in a power module ( 10, 11 ), the system immediately ends operation of all traffic channels associated with the erroneous power module ( 10, 11 ), but sustains operation of the at least one control channel. |
