Introduction to Signaling in 2G/3G Rel 4 (TK610)

Prerequisites Participants must have some technical knowledge in telecommunications,
and some basic knowledge of 2G/3G networks
Target groups Personal, technician and engineers who operate and maintain RAN network
Duration 5.0 days
Course content Introduction
  • Release 4 concept
  • Core network protocols in 2G/3G Rel4 network
  • Protocol stacks and interfaces

MTP: Message Transfer Part

  • Functionality of the three MTP layers
  • MTP message structure
  • MTP procedures

SAAL: Signaling ATM Adaptation Layer and MTP3-b

  • Function and message structure of SAAL and MTP3-b
  • Important SAAL messages and their parameters
  • MTP/SAAL functional procedures


  • Function and structure of SCTP messages
  • Important SCTP messages and their parameters
  • Function and structure of M3UA messages
  • Important M3UA messages and their parameters


  • Functions of SCCP in a CCS7 protocol stack
  • Structure of a SCCP messages
  • Important SCCP messages and their parameters
  • SCCP services: connection oriented, connectionless


  • Transport of RANAP messages on the Iu-CS interface
  • Functions of the RANAP signaling protocol on the Iu-CS interface
  • Important RANAP messages and their parameters
  • RANAP location update procedure on the Iu-CS interface
  • RANAP call setup procedure on the Iu-CS interface


  • Transport of TCAP and MAP messages on various interfaces
  • Structure of a TCAP/MAP messagee
  • Functions of TCAP transaction portion, dialog portion and component portion
  • TCAP support for exchange of messages from higher layer protocols
  • MAP application context and its application
  • MAP functionalities and procedures

AAL Type 2 Signaling

  • Transport of AAL2 signaling messages on the IuCS and Nb interface
  • Purpose of AAL2 signaling
  • AAL2 signaling procedures
  • Important AAL2 signaling messages and their parameters


  • Transport of MEGACO messages on the Mc interface
  • MEGACO protocol concepts: Context, Terminations, Signals
  • MEGACO message structure
  • Important MEGACO messages and their parameters

ISUP: ISDN User Part

  • Function and message structure of ISUP
  • Call- and maintenance related ISUP procedures
  • Important ISUP messages and their parameters


  • Call setup procedures with BICC
  • Transport of BICC messages on the Nc interface
  • Important BICC messages and their parameters
  • Application transport mechanism inside BICC messages
  • Transfer of IPBCP signaling inside BICC messages


  • Transport of SIP messages
  • SIP addresses SIP-URI and TEL-URI
  • Structure of a SIP dialog for call control on the Nc interface
  • SIP requests and responses
  • Transport of bearer information inside SIP messages