RF chann Release
RF chan Rel ack
C001027 SDCCH_ACT_FAIL
C001072 SDCCH_ACT_FAIL_CALLL
immedia reject
immedia reject START T3122
C003002 IMM_ASSGN_REJ
immedia reject
Channal Release
time_limit_call Expire AND DR NOT HAPP
C001011 TCH_REQ_REJ_LACK
C001024 C001060 C001118 C001119 C001141
UNSRV_QD_CALL_ATT QUE_ALL_ASS_REQ_FAIL TCH_REJ_REQ_DUE_LACK_FR TCH_REJ_REQ_DUE_LACK_HR TCH_SEIZ_FAILS_DUE_CONG
SABM UA
Assign command
C1133 TCH_FULL_TR_FAIL C1134 TCH_HALF_TR_FAIL C1140 TCH_REL_DUE_BSS_FAIL
Assignment Failure START T3107
RLT EXPIRE connect failure channal release deactive sacch
release rf channal relea rf chan rele ack
C001003 SDCCH_RADIO_FAIL
Establish indicat C3022 C3023 C3024 C3025
TCH_EMERG_CALL TCH_MTC TCH_MTC TCH_CALL_RE_EST
channal release
(RACH)
C003004 CH_REQ_MSG_REC
C001000 SDCCH_SEIZ_ATT (call) C001135 SDCCH_MOC_SEIZ_ATT (call) C001136 SDCCH_MTC_SEIZ_ATT (call)
C057017 SDCCH_REQ (except ho) C057019 SERVED_SDCCH_REQ (succ res)
chan activat ack END T9103
RF chann Release RF chan Rel ack
T9103 Expire
C1012 TCH_BSS_FAIL C1045 TCH_ABIS_FAIL C1084 TCH_ABIS_FAIL_CALL
Assign command
Disc UA
RF chann Release RF chan Rel ack
immedia reject START T3122
T9103 Expire
C001002 SDCCH_BSS_FAIL C001033 SDCCH_ABIS_FAIL C001075 SDCCH_ABIS_FAIL_CALL
C003002 IMM_ASSGN_REJ
chan activa ack END T9103 immedia assign START T3101
(AGCH) immedia assign
SABM (FACCH)
C001007 SDCCH_ASSIGN (call) Delete indication C003001 IMM_ASSGN_SENT
MS
BTS
BSC
paging
(PCH) paging command
paging command
ccch_load_indica EVERY 30S SEND
C003000 PAGING_MSG_SENT C003038 DELETE_PAGING_COMMAND
channel request channel requried
FAILURE Assignment
Assignment
Assignment Failure
Tch rf release END T3107 END T10
Tch rf releas ack
C001003 SDCCH_RADIO_FAIL
C001012 TCH_BSS_FAIL C001045 TCH_ABIS_FAIL C001084 TCH_ABIS_FAIL_CALL
CONGESTION QUEUE ALLOWED
C001056 QUE_ALL_ASS_REQ_ATT C001016 TCH_QD_TCH_ATT
Queuing indication DR NOT HAPPEN START time_limit_call RF Channal Rele RF Chan Rele ack FREE TCH,STOP time_limit_call
HO COMMAND
后续参考切换流程
MaxTimeLimitDR Expire OR HO FAIL
Channal Release 虽然如果排队的定时器长于DR，但不会
Channal Release
重新排队
Channal Release
CONGESTION QUEUE NOT ALLOW DR NOT ALLOW
C001040 TRUNK_RES_INVOC
C001000 TCH_REQUEST C001026 TCH_CALL_REQ(Excpt tch_tch)
C001102 C001103 C001104 C001105
TCH_FULL_REQ_SUCC_UNSUCC TCH_HALF_REQ_SUCC_UNSUCC TCH_FULL_REQ_PREFERRED TCH_HALF_REQ_PREFERRED
C001009 TCH_NORM_SEIZ C001106 TCH_FULL_SUCC_SEIZ C001107 TCH_HALF_SUCC_SEIZ
C001114 TCH_FULL_SEIZ_NORM_ASS C001115 TCH_HALF_SEIZ_NORM_ASS
C0057016 TCH_SEIZURES(include ho) C0057030 SERVED_TCH_CALL_REQ(call)
C001137 TCH_MOC_SEIZ_ATT
C001138 TCH_MTC_SEIZ_ATT
C0057028 TCH_CALL_REQ(Except tch_tch) IF POSSIBLE C0057029 TCH_DR_REQ
physi contex conf END T9108 C001041 TRUNK_RES_INVOC_SUCC
C003041 BCSU_OVERLOAD_DELETED_RACH C003031 REJ_SEIZ_ATT_DUE_DIST C003030 GHOST_CCCH_RES
C001001 SDCCH_BUSY_ATT
chan activation START T9103
act failure chan activat nack
C057020 T3101_EXPIRED
UA
paging response
Authtific request Authtific request Identity response Identity response cipering mode com cipering mode com ciper mode comple ciper mode comple
不含SD切换 MOC、MTC、EMGC
C057021 SDCCH_ASSIGN (except ho) C057022 SDCCH_RE_EST_ASSIGN C057023 SDCCH_NEW_CALL_ASSIGN
RF Channal Relea T3101 Expire
Channal Release
包含SD切换过来的 C003020 SDCCH_CALL_RE_EST
而SD切换发Assign C003021 SDCCH_EMERG_CALL
command,不发
C003023 IMSI_DETACH_SDCCH
immedia assign C003044 SUCC_SEIZ_SUPPLEM_SERV
Authtification request Identity response
cipering mode command cipering mode complete
setup
setup
call proceeding call proceeding
setup call proceeding
Assignment request physi contex req START T9108 START T10
chan activation START T9103
act failure chan activat nack RF chann Release RF chan Rel ack C001028 TCH_ACT_FAIL C001081 TCH_ACT_FAIL_CALL C1133 TCH_FULL_TR_FAIL C1134 TCH_HALF_TR_FAIL Assignment Failure
C003005 DEL_IND_MSG_REC START RLT
Establish indicat END T3101
C003012 SUCC_SEIZ_TERM (include SMS)
C003013 SUCC_SEIZ_ORIG (include SMS)
C003019 SDCCH_LOC_UPD
Assignment Failure
T9108 Expire Assignment Failure