【資料名稱】：GSM呼叫流程(非常詳盡)

【資料作者】：MOTO

【資料日期】：2011

【資料語言】：中文

【資料格式】：XLS

【資料目錄和簡(jiǎn)介】：

GSM呼叫流程(非常詳盡)

MSL1ABISRRSMCRMSMSSMMTP/MSC
RACH channal
ms－bscT3120requestok_acc_proc_suc_rach (could be decoded)
access_per_rach (all received)

channel
requestinv_est_cause_on_rach(included phantom)
channel
AGCH immediate assign. requestchan_req_cause_atmpt (1510)
bsc－ms"123 tone"rejectchannel
T3126 start T3122required received
expire T3122
channalchannel
requestassigned alloc_sdcch

RSS
channel activation

channel activetion
acknowledge

immediate assignment
AGCH immediatecommandstart T3101
assignment
access_per_agch (how many im_assign_cmd/rej was sent out, 1 msg may include up to 2 MS)
expire T3101
chan_req_ms_fail
SDCCH L2 SABMestabish indiction
T3230L3 (intial msg)CM service requeststop T3101
T303UA ok_acc_proc
(SDCCH)ms_access_by_type (1510)
initial L3 information
CM Service request<CR>
immediate assignment reject conn_req_to_msc
alloc_sdcch_fail
chan_req_ms_rejectSCCP conn
classmark3(if needed)
<CC>

<CREF>
conn_refused
SDCCH setup(Alcatel)COUNT205_OR_SEIZ(華為)SEIZ
identity request (if MSC need more MS information)
identity responsecall setup
call proceeding (MSC have got enough information to setup the connection)
T310 facility (if MS have some supplementary services, such as call divert)

assignment（Alcatel）COUNT665,MORTR_BSCH_REQ（華為）ACR119_MSC 向BSS 發(fā) BSSMAP ASSIGNMNET REQUEST消息時(shí)進(jìn)行統(tǒng)計(jì)
requeststart MSC timer for
ma_req_from_mscassignment, =30s
initiate assignmentmaybe efr_req_from_msc
start assign_successful
assignment resource expire MSC timer without
requestUDT(reset circuit)assignment complete' or
resouce not availableassignment failure'
alloc_tch_fail(alloc_tch_fail_hr)expire assign_successful
ma_cmd_to_ms_blkdassignment failure
unsuccessful assignment
assignment failure
force queue
start T11
assignment queued
queuing indication
expire T11release request
clear request
assignment channel clr_req_to_msc
assigned
stop T11
alloc_tch(Include HR)
physical context request tch_usage ….
physical context confirmed
channel activation
channel activation ack.
SDCCH assignment command
start T10
assignment channel
expire T10release request clear request

assignment failure
ma_fail_from_ms
stop T10release request clear request

FACCH L2 SABM
UA
assignment completed
stop T10
assignment successful
stop assign_successful
connection
required
connection response
successassignment complete(Alcatel)COUNT708_MORTR_BSCH_ASS_COM(華為)SSC119_MSC 收到 BSS 發(fā) BSSMAP ASSIGN COMPLETE 消息時(shí)統(tǒng)計(jì)
stop MSC timer for
total_callsassignment
ma_complete_to_msc
(total calls+intracellHO)IFAM (initial and final address)
ACM (address complete)
alerting

connect(Alcatel)COUNT208_OROG_ANSW(華為)ANS_主叫收到對(duì)端發(fā)來的Connect消息的次數(shù)
conn ack. T313billing startbilling