User's Manual

Confidential
Chapter 4 Message Flow
LTE eNB System Description v2.0 50
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Alarm Type
Description
Applicable
Function Fail Alarm
Fault alarm due to software/hardware problems defined as
‘Function Fail’
LCC4-B1A
Power Fail Alarm
Fault alarm due to power problems
LCC4-B1A
Deletion Alarm
System report alarm due to hardware mount/dismount
LCC4-B1A
UDA
Alarm that the operator wants to provide
LMD1-J1A
RF Unit Alarm
RF unit alarm
RRH
Reset command is executed via LSM and transmitted to LMD1. Then, LMD1 reset
itself, lower boards or unit.
The function and types of the reset are as follows:
Table 12. Reset Commands
Alarm Type
Description
Applicable
HW Reset
Reset the board or unit by cutting off the power quickly
LMD1-J1A, RRH
SW Reset
Reset the OS of the LMD1
LMD1-J1A
Figure below depicts alarm flow for LMD1.
Figure 26. Alarm Flow
LMD1
LCC2
LCC2
LCC4
Clock Module
RRH (8)
RRH (0)
.
.
.
A
B
C
LSM
A
B
C
: Reset
: Alarm
: Remote Pattern Reset