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4G & 5G Roaming Scenarios & Procedures  |    A 3 day training course

4G & 5G Roaming Scenarios & Procedures course description

This course is designed to explain the roaming procedures of modern mobile networks, based on the GSMA roaming specification the course explains all scenarios where a mobile subscriber may find themselves whilst visiting a preferred mobile network partner. Interconnection between MNOs and the use of GRX & IPX as an interworking process. The course will work through the registration & authentication procedure, download of the user profile, the APN configuration & DIAMETER process to verify user authenticity. VoLTE roaming and IMS registration procedures for voice support & SMS delivery will be discussed and explained.

What will you learn
  • Architecture Models
  • Technical requirements for interfaces – 4G Roaming Scenarios
  • Technical requirements & recommendations for services
  • Other Technical Requirements & Recommendations
  • Technical Requirements for QoS support
  • Technical Requirements & Recommendations for Interfaces – 5G Scenarios
  • Technical Requirements & Recommendations for Interworking & Coexistence with E-UTRAN & EPC
  • Technical Requirements & Recommendations for Services
  • Other Technical Requirements & Recommendations
4G & 5G Roaming Scenarios & Procedures course details
  • Who will benefit:
  • Those working in mobile networks.

  • Prerequisites:
  • None.

  • Duration
  • 3 days

  • Dates & prices
  • Click here

4G & 5G Roaming Scenarios & Procedures course contents

Architecture Models
  • 4G Evolved Packet System
  • 5G Core Network
  • SGs Interface for CSFB& SMS over SGs
  • Technical Requirements for Interfaces – 4G Roaming Scenarios
  • General requirements for inter-PLMN interfaces
  • Stream Control Transmission Protocol (SCTP)
  • IAMETER
  • S8 Interface
    1. SGW selection
    2. PGW selection
  • GTP
  • Transport Layer engineering
  • S9 interface
    1. Implementation requirements
    2. Guidelines for DIAMETER over S9
  • S6a & S6d interface
  • Gy interface
    1. Guidelines for DIAMETER over Gy
  • Legacy interworking scenarios
    1. VPLMN has not implemented LTE
    2. HPLMN has not implemented LTE
  • Co-existence scenarios
    1. Possible scenarios
      1. 2G/3G roaming agreement only
      2. 2G/3G LTE roaming agreement
      3. LTE roaming registrations
  • Consequences of different APN approaches when roaming
    1. Guidance regarding the APN approach when roaming
  • Inter-RAT handover
    1. Handover & access restrictions to/from 2G/3G & LTE (Active mode)
    2. Access restriction for 2G/3G and/or LTE (Idle mode)
    3. Handover of PDN Connections between GERAN/UTRAN & LTE
  • Handover to/from non-3GPP accesses & LTE
  • Bandwidth considerations
  • ARP considerations at handover from LTE to 2G/3G
  • Tech requirements & recommendations for Services
  • SMS
    1. SMS over SGs
  • Voice
    1. CSFB
    2. Roaming retry for CSFB
    3. Roaming Forwarding for CSFB
    4. Coexistence of Roaming Forwarding & Roaming Retry
    5. Recommended procedures
  • IMS Voice Roaming Architecture
  • Other Technical Requirements & Recommendations
  • Access Control
  • Addressing
  • APN for IMS based services
    1. IMS Well Known APN
  • APN for Home Operator Services
    1. Gateway Selection
    2. Inter-PLMN roaming handover
    3. Data off related functionality
  • Emergency Services
    1. Emergency PDN connectivity
  • Emergency Call indicator
  • Security
    1. GTP Security
    2. DIAMETER Security
  • DIAMTER Roaming hubbing
  • Default APN
  • E-UTRA NR Dual Connectivity with EPC
    1. GW Selection for E-UTRA-NR Dual Connectivity
  • TAC/LAC Restriction Guidelines
  • Technical Requirements for QoS support
  • QoS parameters definition
  • QoS Management in the Home Routed architecture
  • QoS control for IMS APN in the S8HR architecture
  • Support of QoS in GRX/IPX
  • QoS Control in Local Breakout architecture
  • Technical Requirements & Recommendations for Interfaces – 5G Scenarios
    1. General requirements for inter-PLMN interfaces
    2. Transport protocol – TCP/IP
    3. Serialisation protocol – JSON
    4. Interface Definition language – OpenAPI
    5. Application Protocol – HTTP2
  • Inter-PLMN (N32) Interface
    1. N32c
    2. N32f
    3. ALS & IPX HTTP Proxy
  • SMF & UPF in HPLMN & VPLMN
  • Requirements related to Service Based Architecture
  • Naming, addressing & routing for 5G SA roaming
    1. SEPP load distribution
    2. SEPP administration, naming convention & routing
    3. SEPP HTTP redirections

    Technical Requirements & Recommendations for Interworking & Coexistence with E-UTRAN & EPC
  • Interworking scenarios
  • Coexistence scenarios
  • Inter-RAT Handover
  • Handover & Access restriction between 5GC & EPC
  • Technical Requirements & Recommendations for Services
  • Network slicing
  • Voice, Video & Messaging
  • Location support
  • UE Route Selection Policy
  • Other Technical Requirements & Recommendations
  • Access control
  • IP Addressing
  • DNN for IMS based services
  • Emergency PDU Session
  • Emergency Services Fallback
  • Security
  • Steering of Roaming in 5GS
  • Technical Requirements for QoS support
  • 5G QoS model
  • 5G QoS profile
  • QoS Control
  • Learning path

    Reviews

    5.0

    This is a new course
    Comments below are based on overall ratings

    C. M. - IX Reach

    "Very interesting and informative."


    T. W. - LINX

    "Kept it interesting and fun!"

    Training approach

    This structured course uses Instructor Led Training to provide the best possible learning experience. Small class sizes ensure students benefit from our engaging and interactive style of teaching with delegates encouraged to ask questions throughout the course. Quizzes follow each major section allowing checking of learning.