Call Setup Analysis by Actix
Transcript of Call Setup Analysis by Actix
-
8/13/2019 Call Setup Analysis by Actix
1/30
Grant Chivandire -Radio Planning andOptimisation Specialist
1
RADIO PLANNING AND OPTIMISATIONCall Setup Analysis A Drive Test Perspective(Presentation/Discussion)27 July 2009ByGrant Chivandire
-
8/13/2019 Call Setup Analysis by Actix
2/30
Grant Chivandire -Radio Planning andOptimisation Specialist
2
Objectives
This presentation will cover the following:
.SystemInfoMessages
.TypesofMOC
.SignalingFlowforMOC
.CallSetupFailures&possiblecauses
-
8/13/2019 Call Setup Analysis by Actix
3/30
Grant Chivandire -Radio Planning andOptimisation Specialist
3
System Info Messages
.ContainnetworkparameterssenttoMSthroughairinterface
.Theseparametersare:
.NetworkIdentityparameters
.Cellselectionparameters
.Systemcontrolparameters
.Networkfunctionparameters
-
8/13/2019 Call Setup Analysis by Actix
4/30
Grant Chivandire -Radio Planning andOptimisation Specialist
4
System Information Messages IdleMode
ThesearesenttotheMSonBCCH
.SYSINFO1
.ContainsRACHcontrolinformationandcellchanneldescription
.Theseincludethefollowing:Cellfrequencyallocation(CAlist)Maximumretransmissiontimes(Maxretrans)Extendedtransmissiontimeslots(Tx_interger)CellBaraccess(CBA)Commonaccesscontrollevel(AC)Callre-establishpermitted(RE)Emergencycallspermitted(EC)
-
8/13/2019 Call Setup Analysis by Actix
5/30
Grant Chivandire -Radio Planning andOptimisation Specialist
5
System Information Messages IdleMode
.SYSINFO1MessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
6/30
Grant Chivandire -Radio Planning andOptimisation Specialist
6
System Information Messages IdleMode
.SYSINFO2
.Containsthefollowing:NeighbourcelldescriptionNCCpermittedRACHcontrolparameters(sameasinSYSINFOTYPE1)
.SYSINFO2MessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
7/30
Grant Chivandire -Radio Planning andOptimisation Specialist
7
System Information Messages IdleMode
.SYSINFO3
.Containsthefollowing:LocationAreaIdentity(MCC,MNC,LAC,CI)Controlchanneldescription(reservedAccessGrantBlocks,CCCHConfiguration,IMSIAttach/Detachallowed,PagingMultiframes,T3212)CellOption(Powercontrolindication,DTX,RLINKT)CellSelection(MS_TXPWR,ACCMIN,ACS,NECI)RACHcontrolparameters(sameasinSYSINFOTYPE1)
-
8/13/2019 Call Setup Analysis by Actix
8/30
Grant Chivandire -Radio Planning andOptimisation Specialist
8
System Information Messages IdleMode
.SYSINFO3MessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
9/30
Grant Chivandire -Radio Planning andOptimisation Specialist
9
System Information Messages IdleMode
.SYSINFO4
.Containsthefollowing:CellSelectionParametersRACHControlParametersCBCHChanneldescription.SYSINFO4MessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
10/30
Grant Chivandire -Radio Planning andOptimisation Specialist
10
System Information Messages DedicatedMode
ThesearesenttotheMSonSACCH
.SYSINFO5
.ContainsneighbourcellBCCHfrequencies(Phase1Mobiles)
.SYSINFO5Bis
.ContainsneighbourcellBCCHfrequencieswhichcouldnotfitinthelimitedspaceofTYPE5andbelongtothesamebandasservingBCCH.SYSINFO5TER.ContainsneighbourcellBCCHfrequencieswhosebandisdifferentfromservingBCCH(DualBandMobiles).SYSINFO5TERMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
11/30
Grant Chivandire -Radio Planning andOptimisation Specialist
11
System Information Messages DedicatedMode
.SYSINFO6
.Containsthefollowing:CellIdentityLAICelloptionNCCPermitted.SYSINFO6MessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
12/30
Grant Chivandire -Radio Planning andOptimisation Specialist
12
Mobile OriginatingCall -MOC
Types
.Early Assignment
.ThenetworkassignstheTCH+FACCHaftersendingCCCallProceedingandcompletescallsetupontheFACCH
.LateAssignment
.ThenetworkdoesnotassigntheTCH+FACCHuntilafteralertinghasstarted
.VeryEarlyAssignment
.ThenetworkmakesanimmediateassignmenttotheTCH+FACCHintheinitialRRestablishmentandperformstheentiretransactionontheFACCH.TheSDCCHisnotused
-
8/13/2019 Call Setup Analysis by Actix
13/30
Grant Chivandire -Radio Planning andOptimisation Specialist
13
Signaling Flow of MOC
-
8/13/2019 Call Setup Analysis by Actix
14/30
Grant Chivandire -Radio Planning andOptimisation Specialist
14
Signaling Flow MOC (Um Interface)
.ChannelRequest(uplink)
.MSsendsChannelRequestmessageontheRACH
.Messagecontainsthefollowing:CausevalueMOCRandomreferencenumber.ChannelRequestMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
15/30
Grant Chivandire -Radio Planning andOptimisation Specialist
15
Signaling Flow MOC (Um Interface) (Cont)
.ImmediateAssignment(downlink)
.BSCsendsimmediateassignmentthroughtheBTStotheMSonAGCH
.Messagecontainsthefollowing:DetailsofthesignalingchannelbeingassignedRequestreferencedetails.ImmediateAssignmentMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
16/30
Grant Chivandire -Radio Planning andOptimisation Specialist
16
Signaling Flow MOC (Um Interface) (Cont)
.Setup(uplink)
.MSsendssetupmessagetotheMSConSDCCH
.Messagecontainsthefollowing:BearercapabilitiesB-numberdetails.SetupMessagefromACTIX
.NB:AuthenticationandCipheringhavebeenomitted
-
8/13/2019 Call Setup Analysis by Actix
17/30
Grant Chivandire -Radio Planning andOptimisation Specialist
17
Signaling Flow MOC (Um Interface) (Cont)
.CallProceeding(downlink)
.MSCsendcallproceedingmessagetoMSonSDCCHinformingitthatthecallsetupisinprogress
.Messagecontainsthefollowing:TransactionIDwhichmaybeco-relatedtotherelevantSETUPmessage.CallProceedingMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
18/30
Grant Chivandire -Radio Planning andOptimisation Specialist
18
Signaling Flow MOC (Um Interface) (Cont)
.AssignmentCommand(downlink)
.BSCsendsAssignmentCommandtoMSonSDCCH
.Messagecontainsthefollowing:DetailsofthetrafficchannelbeingassignedAmountofpowertobeusedbytheMS.AssignmentCommandMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
19/30
Grant Chivandire -Radio Planning andOptimisation Specialist
19
Signaling Flow MOC (Um Interface) (Cont)
.AssignmentComplete(uplink)
.MSsendsAssignmentCompletemessagetoBSConFACCHafterithasswitchedtotheassignedTCH
.AssignmentCompleteMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
20/30
Grant Chivandire -Radio Planning andOptimisation Specialist
20
Signaling Flow MOC (Um Interface) (Cont)
.Alerting(downlink)
.MSCsendsAlertingmessagetoMSonFACCH
.TheMSwillhearthering-back
.AlertingMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
21/30
Grant Chivandire -Radio Planning andOptimisation Specialist
21
Signaling Flow MOC (Um Interface) (Cont)
.Connect(downlink)
.MSCsendsConnectmessagetoMSonFACCH
.Thishappensafterthecalledpartyhasansweredthecall
.CallingMSswitchesovertovoiceontheassignedTCH
.ConnectMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
22/30
Grant Chivandire -Radio Planning andOptimisation Specialist
22
Signaling Flow MOC (Um Interface) (Cont)
.ConnectAcknowledgement(uplink)
.MSsendsaConnectAcknowledgementtoMSConFACCH
.Callhasbeensuccessfullysetup
.ConnectAcknowledgementMessagefromACTIX
-
8/13/2019 Call Setup Analysis by Actix
23/30
Grant Chivandire -Radio Planning andOptimisation Specialist
23
Call Setup Failure
.RACH Success
-
8/13/2019 Call Setup Analysis by Actix
24/30
Grant Chivandire -Radio Planning andOptimisation Specialist
24
Call Setup Failure
.Paging Success
-
8/13/2019 Call Setup Analysis by Actix
25/30
Grant Chivandire -Radio Planning andOptimisation Specialist
25
Call Setup Failure
.High SDCCH Congestion Rate
-
8/13/2019 Call Setup Analysis by Actix
26/30
Grant Chivandire -Radio Planning andOptimisation Specialist
26
Call Setup Failure
.High SDCCH Drop Rate
-
8/13/2019 Call Setup Analysis by Actix
27/30
Grant Chivandire -Radio Planning andOptimisation Specialist
27
Call Setup Failure
.High TCH Congestion Rate
-
8/13/2019 Call Setup Analysis by Actix
28/30
Grant Chivandire -Radio Planning andOptimisation Specialist
28
Call Setup Failure
.DisconnectCause
.DisconnectcausecodeLayer3messagecontainsthecausecodeanddescriptionforthedisconnectionGetmoreinformationfrom3GPPTS24.008document
-
8/13/2019 Call Setup Analysis by Actix
29/30
THANK YOU !
-
8/13/2019 Call Setup Analysis by Actix
30/30