7-6
Messages
Timers
Timers
The following is a brief description of the timers.
Physical Layer
Timer
T100 Radio Link Failure
”Loss of SACCH on uplink.”
Data Link Layer
Timers
T200 Data Link Failure
”Failed to receive RR or other acknowledgment of
an I frame.”
Radio Resource
Management
Timers.
T3101 IMMEDIATE ASSIGNMENT timer
”MS failed to seize the assigned channel.”
T3103 HANDOVER timer
”MS failed to seize the assigned channel.”
T3105 Physical information repetition timer
T3107 ASSIGNMENT COMMAND timer
”MS failed to seize the assigned channel.”
T3109 Loss of communication timer
T3111 Channel deactivation delay timer.
T3113 PAGING REQUEST timer
”MS did not respond to page.”
TT01 TCH loopback timer.
Mobility
Management
Timers.
T3250 TMSI_REAL_CMD or LOC_UPD_ACC timer
”MS failed to acknowledge a new TMSI.”
T3260 AUTHENT_REQUEST timer
”MS failed to authenticate.”
T3270 IDENTITY_REQUEST timer
”MS failed to identify.”
T3299 HP Unique timer: CIPHER_REQUEST
”HP 8922M/S failed to configure for ciphering.”
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