bss call setup flow diagrams
DESCRIPTION
BSS Call Flow DiagramsTRANSCRIPT
CMS 11 BSS Call Flows Call Flow Diagrams
Call Flow DiagramsThe figures on the following pages show the CMS 11 BSS call flows and performance attributes for the following call scenarios:
n Mobile Originated Call Setup
n Mobile Terminated Call Setup
n Mobile Initiated Call Release
n MSC Initiated Call Release
n BSC Initiated Call Release
n Location Registration
n SMS Delivery Via the Traffic Channel
n SMS Delivery Via the Paging Channel
n Intra-BSC Soft Handoff
n Selector Element Transfer
n Inter-MSC/Inter-BSS Hard Handoff (Drop)
n Inter-MSC/Inter-BSS Hard Handoff (Add)
n Inter-MSC/Intra-BSS Hard Handoff
Performance attributes are shown in bold on the call flow diagram, and each is associated with a circle on the diagram that indicates where the attribute is pegged. Attributes that are not linked to a specific external message on the diagram are collected internally within the BSC at the position indicated.
n If the circle is at the start of the arrow, the attribute is pegged when the message is sent.
n If the circle is over the arrowhead, the attribute is pegged when the message is received.
n If the circle is not with an arrow, but touches the vertical line, the attribute is pegged at that point in time.
Call Flow Diagrams CMS 11 BSS Call Flows
Figure 1 Mobile Originated Call Setup
Mobile Originated Call Setup
(19) Service Connect
(20) Service Connect Completion Order
(4) ResourceReq
(8) ChannelAssignmentCmd
(9) IS-95 Channel Assignment
(10) Traffic Channel Preamble
(12) Base Station Acknowledgement Order
(15) MS Acknowledgement Order
(16) SCCPConnectionReq
(with CMServiceRequest)
(17) SCCP Connection Confirmed
(7) Null traffic data
(6) Null traffic data
(5) ResourceRsp
(11) Traffic Channel Preamble
RBSMS MSCBSC
The messagesequence 4-14takes placeconcurrentlywith themessagesequence 15-17.
(13) Null traffic data
(14) Null traffic data
CallAttempts
MaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)
start TrafficInSeconds
Attempts
CallsAttempted
ChannelAssignments (RBS 1106, 1107)
MobilePreambleTimeouts
MobileAckTimeouts
ServiceConnectTimeouts
CallsSuccessful
ChannelAssignments (BSC)
(18) Assignment Request
The message sequence 15-17 areconcurrent with messages 4-14
(1) IS-95 Origination
(2) IS-95 Base
Station Acknowledgement
(21) Assignment Complete
MobileOrigChannelAssignments
CircuitDataChannelAssignments (7.5)
ReachingReverseTraffic (7.5)
ReachingServiceConnect (7.5)
(3) Origination Ind
SuccessfulOriginations (RBS 1102, 1103)OriginationsBySo(RBS 1106, 1107)OriginationRetransmission(RBS 1106, 1107)BlockingInfo(RBS 1106, 1107)BlockedOriginations (RBS 1102, 1103)(see Table 3-1)BlockedHandoffs (RBS 1102, 1103)(see Table 3-1)
BlockingInfo(RBS 1106, 1107)BlockedOriginations (RBS 1102, 1103)(see Table 3-1)
BlockedHandoffs (RBS 1102, 1103)(see Table 3-1)
CMS 11 BSS Call Flows Call Flow Diagrams
Figure 2 Mobile Terminated Call Setup
Mobile Terminated Call Setup
(21) Service Connect
(22) Service Connect Completion Order
(23) AssignmentComplete
(24) Alert With Information
(25) Connect
(26) IS634 Connect
(4) Page Response
(5) PageRsp
(6) ResourceReq
(10) ChannelAssignmentCmd
(11) IS-95 Channel Assignment
(12) Traffic Channel Preamble
(14) Base Station Acknowledgement Order
(17) MS Acknowledgement Order
(1) PagingRequest
(3) General Page
(18) SCCPConnectionReq
(with Paging Response)
(19) SCCP Connection Confirmed
(9) Null traffic data
(8) Null traffic data
(7) ResourceRsp
(13) Traffic Channel Preamble
RBSMS MSCBSC
The messagesequence 7-17takes placeconcurrently withthe messagesequence 18-20.
(15) Null traffic data
(16) Null traffic data
CallAttempts
GeneralPages (BSC)
MaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)start TrafficInSeconds
Attempts
ChannelAssignments(RBS 1106, 1107)
MobilePreambleTimeouts
MobileAckTimeouts
ServiceConnectTimeouts
CallsSuccessful
LandOrigAnswered
ChannelAssignments (BSC)
(20) Assignment Request
(2) PageReq
The message sequence 7-17 areconcurrent with messages 18-20
CallsAttempted
LandOrigChannelAssignments
ReachingReverseTraffic (7.5)
ReachingServiceConnect (7.5)
PageResponsesBySo (RBS 1106, 1107)PageResponseRetransmission (RBS 1106, 1107)
BlockingInfo(RBS 1106, 1107)BlockedOriginations (RBS 1102, 1103)(see Table 3-1)
BlockedHandoffs (RBS 1102, 1103)(see Table 3-1)
GeneralPages (RBS 1106, 1107)
CircuitDataChannelAssignments (7.5)
Call Flow Diagrams CMS 11 BSS Call Flows
Figure 3 Mobile Initiated Call Release
Figure 4 MSC Initiated Call Release
Mobile Initiated Call Release
(4) Clear Command
RBSMS MSCBSC
end TrafficInSeconds
MaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)
(1) Release Order
(2) Clear Request
(3) Release Order
(5) Clear Complete
(6) SCCP RLSD
(7) SCCP RLC
MobileInitReleasesReleaseReasonCounts
CallsSuccessfulCallsCompleted
CallsCompletedBeforeReverseTraffic (7.5)CallsCompletedBeforeServiceConnect (7.5)
CallsCompletedBeforeChannelAssignment (7.5)
MSC Initiated Call Release
(1) Clear Command
RBSMS MSCBSC
end TrafficInSeconds
MaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)
(2) Release Order
(3) Clear Complete
(4) SCCP RLSD
(5) SCCP RLC
SwitchReleasedReleaseReasonCountsCallsSuccessfulCallsCompletedCallsCompletedBeforeReverseTraffic (7.5)CallsCompletedBeforeServiceConnect (7.5)CallsCompletedBeforeChannelAssignment (7.5)
CMS 11 BSS Call Flows Call Flow Diagrams
Figure 5 BSC Initiated Call Release
Figure 6 Location Registration
BSC Initiated Call Release
(3) Clear Command
RBSMS MSCBSC
end TrafficInSecondsMaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)
DroppedCalls
(1) Clear Request
(2) Release Order
(4) Clear Complete
(5) SCCP RLSD
(6) SCCP RLC
ReleaseReasonCounts
RF Dropped Calls
Location Registration
(4) SCCP ConnectionReq
(Location Updating Request)
RBSMS MSCBSC
(3) IS-95 Base StationAcknowledgment
(8) SCCP RLSD
(9) SCCP RLC
(1) IS-95 Registration
(2) Regnind
(5) SCCP Connection Refused
(Location Updating Accept)(6) OrderCmd
(7) IS-95 RegistrationAccept Order
8 and 9 are only required if the Location UpdatingAccept was carried by an SCCP ConnectionConfirm message instead of an SCCP ConnectionRefused message (5)
Registrations (RBS 1106, 1107)RegistrationRetransmissions (RBS 1106, 1107)
OtherPages (RBS 1106, 1107)
Call Flow Diagrams CMS 11 BSS Call Flows
SMS Delivery Via the Traffic Channel
Figure 7 SMS Delivery Via the Traffic Channel
SMS Delivery Via the Traffic Channel
(21) Service Connect
(22) Service Connect Completion Order
(23) AssignmentComplete
(24) Alert With Information
(25) Connect
(26) IS634 Connect
(4) Page Response
(5) PageRsp
(6) ResourceReq
(10) ChannelAssignmentCmd
(11) IS-95 Channel Assignment
(12) Traffic Channel Preamble
(17) MS Acknowledgement Order
(1) PagingRequest
(3) General Page
(18) SCCPConnectionReq
(with Paging Response)
(19) SCCP Connection Confirmed
(9) Null traffic data
(8) Null traffic data
(7) ResourceRsp
(13) Traffic Channel Preamble
RBSMS MSCBSC
The messagesequence 7-17takes placeconcurrently withthe messagesequence 18-20.
(15) Null traffic data
(16) Null traffic data
CallAttempts
GeneralPages (BSC)
MaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)start TrafficInSeconds
Attempts
CallsAttempted
MobilePreambleTimeouts
MobileAckTimeouts
ServiceConnectTimeouts
CallsSuccessful
LandOrigAnswered
ChannelAssignments (BSC)
(20) Assignment Request
(2) PageReq
The message sequence 7-17 areconcurrent with messages 18-20
(28) SMS Delivery
(29) Layer2Ack
(30) ADDS Deliver Ack
(27) ADDS Deliver
LandOrigChannelAssignments
ReachingReverseTraffic (7.5)
ReachingServiceConnect (7.5)
GeneralPages (RBS 1106, 1107)
BlockingInfo (RBS 1106, 1107)BlockedOriginations (RBS 1102, 1103)(see Table 3-1)
BlockedHandoffs (RBS 1102, 1103)(see Table 3-1)
CircuitDataChannelAssignments (7.5)
PageResponsesBySo (RBS 1106, 1107)PageResponseRetransmission (RBS 1106, 1107)
ChannelAssignments(RBS 1106, 1107)
(14) Base Station Acknowledgement Order
CMS 11 BSS Call Flows Call Flow Diagrams
Figure 8 SMS Delivery Via the PagingChannel
SMS Delivery Via the Paging Channel
(21) Paging DataBurstCmd
(22) Data Burst
(23) Layer2Ack
(25) ADDS Page Ack
(4) Page Response
(5) PageRsp
(6) ResourceReq
(10) ChannelAssignmentCmd
(11) IS-95 Channel Assignment
(12) Traffic Channel Preamble
(14) Base Station Acknowledgement Order
(17) MS Acknowledgement Order
(1) PagingRequest
(3) General Page
(18) SCCPConnectionReq
(with Paging Response)
(19) SCCP Connection Refused
(9) Null traffic data
(8) Null traffic data
(7) ResourceRsp
(13) Traffic Channel Preamble
RBSMS MSCBSC
The messagesequence 7-17takes placeconcurrently withthe messagesequence 18-20.
(15) Null traffic data
(16) Null traffic data
CallAttempts
GeneralPages (BSC)
MaxSimultaneousCalls (6.5)MinAvailableVoiceCalls (7.5)
start TrafficInSeconds
Attempts
CallsAttempted
MobilePreambleTimeouts
MobileAckTimeouts
ChannelAssignments (BSC)
(20) ADDS Page
(2) PageReq
The message sequence 7-17 areconcurrent with messages 18-20
end TrafficInSeconds
Release Reason Counts
OtherPages (BSC OHM)OtherPages (BSC PAM)
OtherPages (RBS)
(24) AckInd
ReachingReverseTraffic (7.5)
LandOrigChannelAssignments
PageResponsesBySo (RBS 1106, 1107)PageResponseRetransmission (RBS 1106, 1107)
BlockingInfo(RBS 1106, 1107)BlockedOriginations (RBS 1102, 1103)(see Table 3-1)
BlockedHandoffs (RBS 1102, 1103)(see Table 3-1)
CircuitDataChannelAssignments (7.5)
ChannelAssignments (RBS 1106, 1107)
GeneralPages (RBS 1106, 1107)
Call Flow Diagrams CMS 11 BSS Call Flows
Figure 9 Intra-BSC Handoff
Figure 10 Selector Element Transfer
Intra-BSC Soft Handoff
RBS2
MS MSCBSC
NeighborlistHoles
RBS1
SHO_Attempts
(1) IS-95 Pilot Strength Measurement Message
(2) ResourceReq
(3) ResourceRsp
(4) ConnectReq/Rsp
(5) Selector Frames
(6) Selector Frames
(7) ChannelElementCntInd
(8) IS-95 Extended Handoff Direction Message
(9) IS-95 Handoff Completion Message
(10) Handoff Performed10 only required if zonepilot is dropped
Selector Element Transfer
(1) ResourceReq
(5) Extended Handoff Direction Message
(6) Handoff Completion Message
(4) Null traffic data
(3) Null traffic data
(2) ResourceRsp
RBSMS BSC
MaxSimultaneousCalls (6.5)Min AvailableVoiceCalls (7.5)
BlockingInfo(RBS 1106, 1107)BlockedOriginations (RBS 1102, 1103)(see Table 3-1)
BlockedHandoffs (RBS 1102, 1103)(see Table 3-1)
CMS 11 BSS Call Flows Call Flow Diagrams
Figure 11 Inter-MSC/Inter-BSS Hard Handoff (Drop)
Inter-MSC/Inter-BSS HHO (Drop)
S_RBSMS S_BSC
(1) MS is in Conversation
(6) Extended Hadoff Direction Message
T_MSCS_MSC
(2) Handoff Required
(3) FACDIR2
(4) facdir2
(5) Handoff Command
(7) Handoff Commenced
Foward Traffic Channel Frames
Reverse Traffic Channel Frames
(8) Handoff Completion Message
(9) T_BS Ack Order
(10) MSONCH
(11) Clear Command
(12) Clear Complete
Voice Traffic
C2CVoiceDropAttemptsC2CDataDropAttemptsC2ADropAttempts
C2CVoiceDropsKnownSuccessfulC2CDataDropsKnownSuccessfulC2ADropsKnownSuccessful
Call Flow Diagrams CMS 11 BSS Call Flows
Figure 12 Inter-MSC/Inter-BSS Hard Handoff (Add)
Inter-MSC/Inter-BSS HHO (Add)
T_RBSMS T_BSC
(12) Handoff Completion Message
(15) In-Traffic System Parameter Message
S_MSCT_MSC
(2) Handoff Request
(1) FACDIR2
(3) SCCP Connection Confirm
Forward Traffic Channel Frames
Reverse Traffic Channel Frames
(14) MSONCH
(13) Handoff Complete
Voice Traffic
(4) CRMResourceReq
(5) CRMResourceRsp
(6) TCEConnectReq
(7) TCEConnectRsp
(9) Handoff Request Ack
(10) facdir2
(11) BeginReverseTrafficInd
(16) Neighbor List Update Message
(17) Service Connect
(18) Service Connect Complete
VoiceSuccessfulAddsDataSuccessfulAdds
VoiceAddAttemptsDataAddAttempts
CMS 11 BSS Call Flows Call Flow Diagrams
Figure 13 Inter-MSC/Intra-BSS Hard Handoff
Inter-MSC/Intra-BSS HHO
S_RBSMS BSC
(1) MS is in Conversation
(8) Extended Hadoff Direction Message
MSCT_RBS
Data Traffic
Reverse Traffic Channel Frames
(11) Handoff Completion Message
(13) Release Order
(12) Hadoff Completion Msg
(14) Handoff Performed
Voice Traffic
(2) TCEEarliestPNOffsetInd
(3) CRMResourceReq
(4) CRMResourceRsp
(5) TCEConnectReq
(6) TCEConnectRsp
(7) TCEForwardTraffic message
Data Traffic
(9) TPURevTrafficMsg
(10) TCEBeginRevTrafficInd
IntraBSS_HHO_Attempts
IntraBSS_HHO_Completions