2. GSM Call Flow Call to a MS Call from a MS
Locating
on (Paging Perf.)
Initiations
CCCH/ Paging on
PCH (Random Access) RACH
Filtering MEASUREMENTS
•Immediate
(SDDCH Perform.)
Channel Administration
on Assignment
Urgency Immediate Immediate assignment on TCH
CCCH/ Assignment •ACLC
AGCH of SDCCH
Basic Ranking
Aux Radio (Available TCH) •ASSOC
Network
on Assignment / •AW
SDCCH Assignment of TCH
Function Eval Change of •CLS
(HCS) (Assignment Fail.) •DHRA
Mode
Organizing List (Traffic Erlangs)
on (Call Quality)
Sending List TCH
Supervision
Handover
•Inter cell/BSC
•Intra cell/BSC
Allocation Reply (Handover Perf.) •OL/UL
•Bad Quality
Handover/Clear (Dropped Calls) •Urgency
•HCS
3. UMTS Call Flow Call to a MS Call from a MS
Activate
Algorithms on (Paging Perf.)
PICH/ Paging on Open Loop
SCCPCH (Random Access) RACH Power Control
Power Ctrl.
•Directed Retry
(RRC Connect. Perform.)
on FACH/ RRC
Code Ctrl. Predefined Signaling
Inner Loop/Outer Loop
SCCPCH Connection
RAB Selected
Admission Ctrl.
MEASUREMENTS
(Available TCH) •Load Sharing
on FACH/
RAB Selection SCCPCH RAB Assignment of DPDCH
Power Control
Assignment (RAB Establish. Fail.)
(Traffic Erlangs)
on (Call Quality)
DPDCH
Supervision
Soft Handover
(Throughput) •Inter cell/BSC
•Intra cell/BSC
(Handover Perf.) •OL/UL
Soft/Softer •Bad Quality
Handover/Clear (Dropped Calls) •Urgency
•HCS
