LTE Training

3G Network Solutions

LTE/IMS/IoT/5G Telecom Centre

header photo

  1. Evolution of IMS
    1. IMS Entities and Connectivity
    2. IMS for VoLTE
    3. IMS for SMS/MMS/vMail/APPs
    4. VoLTE Protocol Stack
    5. Voice Support Via IMS
    6.      IMS Interfaces summary
  2. IMS Layers & Functional Division
    1. IMS with Mireless Network
  3. IMS Architecture
    1. CSCF – S/I/P
    2. PDF/AF Connectivity
    3. HSS & SLF
    4. APP Server and their Variation
    5. BGCF
    6.      MRFC/MRFP
    7. MGCF/M-GW
    8. Signalling/Gateway
    9.      Signalling Translation
  4. SIP-Message Flow
    1. SIP Requests and Responses
    2. SIP Signalling Call Flows
    3. Separation of Signalling and Media flow
    4. Registration and Authentication Flow
    5. EPS Bearers and Media through EPS
    6.      IP Flow mapping at P-GW
    7. Session Binding and QoS
    8. IMS Charging, Online/Offline
  5. SIP-SDP Basics
    1. Interoperability with Different IP-CAN
    2. User Agent, Proxy and Server
    3. URI and Address Assignment
    4. Transport Mechanism
    5. Authentication
    6.     Trust Domain and Parameters
    7. P-Charging Vector
    8. ICID, ANCI, IOI, P-Charging-Function-Addresses
    9.      Emergency Services
    10.      Tracing Depth
    11. Overlap Signalling
    12.      Routing
    13. Dialog Correlation
    14. Priority Mechanism
  6. SIP Procedures
    1. Interoperability with Different IP-CAN
    2. URI and Address Assignment
    3. Authentication and Media Security
    4. Trust Domain
    5. P-Charging Vector
    6.      ICID, ANCI, IOI, P-Charging-Function-Addresses
    7. User Agent Responses
  7. Procedures at UE
    1. Registration and Authentication
    2. Parameters in ISIM
    3. UE without ISIM/USIM/IMC
    4. Initial Registration
    5. Sending Unprotected REGISTER
    6.     On receiving 200(OK) for REGISTER
    7. On Negative REGISTER Response
    8. Timer F expires at UE
    9.      Initial Registration using IMS AKA
    10.      On 200(OK) for protected REGISTER
    11. Initial REGISTRATION using SIP digest
    12.      Initial Registration – NASS-IMS Bundled Authentication
    13. Initial registration using GPRS-IMS-Bundled Authentication
    14. Subscription to Event Package
    15. User Initiated (re)REGISTRATION of an Additional PUId
    16. REGISTER without Challenge Response
    17. Negative Responses for REGISTER
    18.      Authentication IMS-AKA
    19.      On 200(OK) response for security Association
    20.      Network-Initiated Re-Authentication
    21. Change of IPv6 address due to delivery
    22. User Initiated De-Registration
    23. Network Initiated De-Registration
    24. Subscription and Notification
    25. UE Origination Procedure
    26. Structure of Request URI
    27. UE without dial-string processing Capability
    28. Example URI
    29. Dial-String and Phone-Context
    30. Non-Register UE-Termination
    31. Initial Invite Request
  8. IMS Call Processing Fundamentals
    1. IMS Service Provision Architecture
    2. S-CSCF to AS via IMS Service Control (ISC)
    3. Provision of Nedia Resources
    4. Border Control Concept for ISC
    5. ISC Gateway Functions
    6.      Support of Voice via IMS
    7. Border Control functions for other Interfaces
    8. ICSI and IARI
  9. IMS Processing
    1.  Service Point Triggers (SPTs)
    2.  Filter Criteria
    3. S-CSCF Filter Criteria Processing
    4.  Examples: Filter Criteria Triggering
    5. Filterriteria Evaluation
    6. Transit Invocation Criteria Processing
    7. S-CSCF Modes of Operations
    8. Transit functions modes of operations
    9.      Transit function Interfaces
    10.      S-CSCF handling of REGISTRATION
    11.  REG Event Package
    12.      S-CSCF handling of Registered User Orig/Term
    13. S-CSCF handling of Un-Registered User Orig/Term
    14. Subscription and Notifications
    15. S-CSCF handling of IMS charging
    16. Transit Function handling of IMS Charging
    17. Filter Criteria Parameters
  10. IMS Entity Requirements
    1. HSS Requirements
    2. MRFC Requirements
    3. SIP Application Server
    4. AS Handling of Requests
    5. AS IMS Charging
    6.      IM-SSF, OSA SCS, Charging Server Handling
    7. MRB- Media Resource Broker
    8. MRFC Tones and Announcements - Example
  11. IMS Call flow Examples
    1. Ad-hoc Multiparty Call
    2. Transcoding Example
    3. Call Forwarding
    4. UE-Redirection
    5. Media Transcoding
    6.      Message Recording
    7. IMS SMS send/receive handling
  12. Wireshrk LAB
    1. Analyse REGISTER
    2. Analyse INVITE etc...
  1. VoLTE with IMS
    1.         Why VoLTE makes sense?
    2.         IMS based VoLTE             
    3. Support of Voice via IMS         
    4.         VoLTE Elements
    5. VoLTE  Simplified Architecture              
    6.         VoLTE UE-IMS Protocol Stack      
    7.         GETTING CONNECTED 
    8.         VoLTE Power on to Registration     
    9.         CALL AND MEDIA HANDLING   
    10.         VoLTE Call Origination    
    11.         MGCF and IMS-MGW functions   
    12.         VoLTE call Processing in IMS
    13.         MGCF and T-SGW            
    14.         Signalling Conversion between VoLTE with CS
    15.         IRAT PS HANDOVER      
    16.         IRAT LTE TO CS (SRVCC) Handover
    17.         SRVCC
    18.         CS based Roaming
    19.         PS Based Roaming
    20.         VoIP functional Entities    
    21.         Text Messaging services    
    22.         SMS Over SG      
    23.         Video and Voice Call Switch over VoLTE
    24.         VoLTE and Video Calling Connection          
    25.         vVoLTE Connection Process
    26.         Road to Video over LTE
    27.         Voice in PHY Layer - SPS and TTI Bundling               
  1. VoLTE with CSFallBack
    1. CS Fallback – VoLTE through 2G/3G   
    2. CSFB  Steps:
    3. CSFB Options             
    4. RRC connection release with redirection.
    5. CSFB Info Element
    6.      CSFB Call Transfer
    7. CSFB Message Flow  
    8. Simultaneous Voice and LTE (SV-LTE)