Price 3860 + VAT
DURATION 3 Days

Course Overview

The course provides the core theoretical knowledge that describes, in depth, all Roaming related subjects as well as the 3G/4G cellular networks in general.
As a background for understanding the Roaming architecture, operation and services the course reviews IP basic procedures and routing capabilities as well as SS7 signaling focusing on the SCCP/TCAP protocols. In addition the course covers in depth UMTS architecture and procedures from power-on of the mobile to call originating and terminating, in the visited network (roaming). The Course describes the different types of international roaming and the mechanisms that enable roaming calls and data session scenarios including SS7/IP messages and transactions between visited to home networks. The course will also deal with the international operators supporting roaming and international SMS exchange, GSMA standards, Roaming billing and operational processes between operators around Roaming service.

Who should attend?

This course is ideal for those who want to get up to speed fast and want to become familiar with

Prerequisite:

Delegates should have a basic understanding of wireless communication networks and be familiar with 2G/GSM Cellular networks

Course Outline:

1. Introduction to Roaming Protocols

  • IP for Roaming –  overview
– IP evolution
– IP Addressing
– The IP Address Exhaustion Problem
– IPv6 Addressing
– ARP Address Resolution Protocol
– Network layer Protocols
– ICMP – Control Message Protocol
– IGMP – Group Management Protocol
– TCP/IP
– Operation, ports, error handling
– TCP and UDP
– DHCP, DNS and NAT review
– IP forwarding and routing
– QoS considerations (DiffServ, IntServ)
– Security issues (IPsec)
  • SS#7  Protocol & Applications Overview
– SS#7 in General
– C.A.S. and C.C.S.S.
– Associated & Quasi- Associated modes & Non Associated.
– Network sample & signaling network structure
– S.P. & S.T.P, SSP
– Signaling network definition (S.L., link Set, Route, Rout Set, L.A.T.A, sub LATA)
– Introduction to the SS#7 Protocol
– OSI layer architecture
– Functional architecture of SS#7
– ISUP Protocol
  • ISUP message types and format
  • ISUP call setup scenarios
– Custom Local Area Signaling Service (CLASS)
– Why TCAP/SCCP? Introduction
– SCCP – Signaling Connection Control Part
  • Architecture of SCCP layer
  • SCCP modes, message classes
  • Global Title Translation process GT
  • Structure of GT in SCCP
  • SCCP message format, protocol parameters
– TCAP – Transaction Capabilities Application Part functions
– TCAP concepts & functions, transactions
– AIN (Advanced Intelligent Networks)
– Protocol model
– Network architecture (SSP, SCP, SMS, SCE)
– AIN services

2. Get to Know Roaming

  • What is Roaming?
  • Types of Roaming
– Inter PLMN roaming
– Regional national roaming
  • The Roaming Alphabet Soup – Terminology
  • Roaming Evolution
– IP based interconnections
– SS7 signaling
– Inter-operators Direct  connection
– International Roaming service  facilities and Service Providers
  • Interconnections – How it works?
– Roaming Agreements
– Direct Connections
– SMS Hubs, SCCP International Trans, GRXs
  • Roaming Service Types
– ISP roaming
– PLMN roaming

3. 3G/4G networks Architecture Overview

  • Cellular Networks refresher
– Cellular system basic elements
– HLR, VLR, AUC, EIR functions
– The cell functions and radio interface
– Short Message Service network elements
– The existing access technologies for 2G
–  TDMA/FDMA/CDMA
– Overview of the 2G technologies and standards
  • GPRS and the Road Map to 3G
– Packed data network architecture and nodes functions
–  SGSN & GGSN
– DNS & DHCP
– Packet data procedures
– IMSI attach
– PDP Context activation & IP session setup
  • 3G UMTS Overview
– UMTS Network architecture overview
– The access network UTRAN – Node-B, RNC
– The Circuit domain and elements functions
– The Packet domain and elements functions
– WCDMA Overview
– The WCDMA Principles
– UE States
– Handovers in UMTS
– Basic procedures in UMTS network
– Call setup
– Handover in WCDMA UMTS
– Video calls
– Data sessions
– IMS Overview
– Devices
– Device categories
– SIM/USIM and UICC cards
– UMTS Security issues and solutions
– General threats in cellular networks
– Authentication, Ciphering
– Integrity Protection Principles
– QoS principles and mechanisms
– Billing and charging mechanisms
– Cellular Network Operations
– Monitoring & Fault Management
  • Roadmap to 4G
– HSDPA/HSUPA technology Overview
– What’s HSPA+
  • 4G/LTE in a nutshell
– 4G/LTE Network Architecture
– Key characteristics and technology
– Capacity and throughput

 

  • 3G UMTS Overview
– UMTS Network architecture overview
– The access network UTRAN – Node-B, RNC
– The Circuit domain and elements functions
– The Packet domain and elements functions
– WCDMA Overview
– The WCDMA Principles
– UE States
– Handovers in UMTS
– Basic procedures in UMTS network
– Call setup
– Handover in WCDMA UMTS
– Video calls
– Data sessions
– IMS Overview
– Devices
– Device categories
– SIM/USIM and UICC cards
– UMTS Security issues and solutions
– General threats in cellular networks
– Authentication, Ciphering
– Integrity Protection Principles
– QoS principles and mechanisms
– Billing and charging mechanisms
– Cellular Network Operations
– Monitoring & Fault Management
  • Roadmap to 4G
– HSDPA/HSUPA technology Overview
– What’s HSPA+
  • 4G/LTE in a nutshell
– 4G/LTE Network Architecture
– Key characteristics and technology
– Capacity and throughput

4. Roaming Fundamentals

  • Roaming Service operation
– Searching and Selecting a network abroad
– RAT selection
– PLMN selection
– Contacting the visited network VLR
– Role of the (U)SIM
– Standardized Roaming files & their roles 2G versus 3G Data roaming Post-issuance management of Roaming files
– Steering of Roaming (SoR)
– OTA
– SS7 Signaling
– Hybrid Solutions
– Anti-steering techniques
– Dual IMSI
– Visited network & HPLMN HLR transactions
– MAP messages routing to HPLMN HLR using GT
– Mobile security while roaming – Authentication, Ciphering & Integrity
  • Roamer subscriber call scenarios
– Local call abroad
– International call in visited network
– A call to a roaming subscriber
– Voice connections international calls
– CAMEL and pre-paid services
– Pre-paid services
– UCB – USSD Call back
  • GPRS Roaming options
– ISP roaming
– PLMN roaming
  • GSMA Roaming standards and documentation
– IRA – International Roaming Agreement
– IOT – Inter-Operator Tariff
– RAEX – Roaming Agreement  Exchange
– IREG – International Roaming Expert Group
– TADIG – Transferred Account Data Interchange Group
  • International Roaming operation
– International SCCP Gateway Service to support Roaming
– Open Connectivity Roaming
– Inter-standard SMS Interworking Service
– International SMS Hubs & Roaming SMS
– Roaming Enablers
– NRTRDE – Near Real Time Roaming Data Exchange (fraud prevention)
– Inter-Operator billing
– subscriber activity report – TAP (Transferred Account Procedure)
– Data Clearing
– Value Drivers
– Radio network (sites, network access levels, etc.)
– GLR  – Gateway Location Register
– Services – CAMEL, 3G, Short codes

5. Summary

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