TPU’s CHP DSP1~3 Initialization Failure................................................................................106
RFAD6620 Initialization Failure.............................................................................................107
RFAD6620 Resource Unavailable..........................................................................................107
CIP Resource Unavailable ....................................................................................................108
TPU’s FLASH MEMORY Error.................................................................................................109
WATCHDOG Overflow in TPU’s CHP DSP0.............................................................................109
WATCHDOG Overflow in TPU’s CHP DSP1~3 ........................................................................110
WATCHDOG Overflow in FUC...............................................................................................111
Parameter Configuration Error in TPU’s Channel 0~7 ............................................................111
Inconsistent Cell Parameter Configuration.............................................................................112
Inconsistent FUC Software Versions .....................................................................................112
Inconsistent CHP Software Versions .....................................................................................113
Temporary No Response from FUC’s L3 Software..................................................................113
Disconnected LAPD Link between FUC and BSC ....................................................................114
Interrupted Communication between CMM and FUC .............................................................115
TPU’s CIP Initialization Failure ..............................................................................................116
CIP Parameter Configuration Error .......................................................................................116
WATCHDOG Overflow in TPU’s CIP.......................................................................................117
Inconsistent CIP Software Versions ......................................................................................117
Alarm with Clock between TPU and CMM..............................................................................118
TPU Power Alarm ................................................................................................................119
TPU Frame Number Alarm...................................................................................................119
Receiving RF Local Oscillator PLL1~2 out of Lock ..................................................................120
Transmitting RF Local Oscillator PLL1~2 out of Lock..............................................................121
52 M Reference Clock PLL Out of Lock ..................................................................................121
Transmitting IF Local Oscillator PLL Out of Lock.....................................................................122
PA Voltage SWR Alarm ........................................................................................................123
PA Overheat Minor Alarm.....................................................................................................123
PA Overheat Major Alarm ....................................................................................................124
PA Output Power Alarm .......................................................................................................124
PAS Power Amplifier Power Supply Over-voltage Alarm.........................................................125
PAS Power Amplifier Power Supply Under-voltage Alarm.......................................................125
DLRC_AL Downward Link Check Error ..................................................................................126
Chapter 6....................................................................................127
Troubleshooting .................................................................................... 127
Summary of Common Problems .......................................................................... 128
List of Major Faults.............................................................................................. 129
Troubleshooting Procedure of Components Failures ............................................... 129
Troubleshooting at BS Commissioning Stage......................................................... 130
BS Works Normally but Mobile Phone Has no Signals or Cannot Access Network ....................130
Handling of SWR Major Alarms.............................................................................................132
