Patent ID: 6904013
Filing Date: 2005-06-07
Classification: H04M,H04W

Abstract:
1. CDMA base-station comprising a transmit stage ( 2 , 4 , 7 , 9 , 10 , 11 , 12 ) end a receive stage ( 3 , 5 , 8 , 13 ) for communicating with mobile terminals, the transmit stage comprising a power amplifier having at least two independent power modules ( 10 , 11 ) for transmitting signals on at least One traffic channel (TCH) end control and pilot signals on at least one control channel (CCH), each power module ( 10 , 11 ) being capable of being operational even though one other power module is non-operational, the at least two power modules normally being adapted for operating simultaneously and each contributing with emitting power, whereby the CDMA base station moreover comprises a control module ( when an error signal is detected in the base-station indicative of an error in one of said power modules ( immediately ending operation of all traffic channels associated with the erroneous power module ( wherein when the control channel (CCH) is restored after a fault in one of said power modules has occurred, the base-station; disables the traffic channel power control (TPC ) power loop; deletes traffic for a predetermined group terminals; enables the TPC power loop; sets up communication with remaining terminals in sector; and allocates traffic channels (TCH) in sector to remaining terminals at a new reduced power level (Prmaxf).