call processing in cdma
TRANSCRIPT
Channel Request
Immediate Assignment
CM Sevice RequestComplete Layer 3 Info
Authentication Request
Authentication ResponseCipher Mode CMD
Ciphering Mode Command
Cipher Mode CompleteCipher Mode Complete
Setup
Identity Request
Identity Response
Call ProceedingAssignment Request
Assignment Command
Assignment CompleteAssignment Complete
Alerting
Connect
Connect Acknowledge
Note: In this presentation the BTS & BSC is considered together as BSS part.
MOBILE ORIGINATED CALL
Answer Signal/Answer Message (ANM)
PSTN
Address Complete Message (ACM)
Initial Address Message (IAM)
MS BSSMSC/VLR
HLR
Send Routing InfoProvide Roaming Number
Roaming NumberRouting Information
Paging CommandPaging
Channel Request
Immediate Assignment
Paging ResponseComplete Layer 3 Info
Cipher Mode CMDCiphering Mode Command
Ciphering Mode CompleteCipher Mode Complete
Identity Request
Identity Response
Setup
Call ConfirmedAssignment Request
Assignment Command
Assignment CompleteAssignment Complete
Alerting
Connect
Connect Acknowledge
MOBILE TERMINATED CALL
Initial Address Message (IAM)
PSTN
Address Complete Message (ACM)
Answer Signal/Answer Message (ANM)
MS BSSMSC/VLR
HLR
Channel Request
Immediate Assignment
Location Update RequestComplete Layer 3 Info
Send Authentication para
Authentication ParaAuthentication Request
Authentication ResponseUpdate Location
Insert Subsciber data
Sub data insertion acc
Location Update AcceptCancel Location
TMSI Realloc CommandLoc cancell accept
TMSI Realloc Complete
Location Update Accept
old VLR
HLR
LOCATION AREA UPDATING
MS BSSMSC/VLR