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IP-Based Transport for UTRAN

Course Description

Mobile operators worldwide migrate from ATM/SDH transport to IP/Ethernet based transport. Signalling and user traffic use a common transport technology based on the Internet Protocol standards. The main driver for this migration is the promised low cost, at least in urban areas. However, low cost should not impact service quality, which puts a number of QoS related requirements on the new transport infrastructure. Applicable transport network architectures, together with correct mapping of existing traffic and signalling priorities into IP and Ethernet handled service classes are crucial, in order to meet those requirements.

Content

MOBILE IP TRANSPORT NETWORKS
  • General considerations
  • Internet Protocol, IP
  • Layer 2 Ethernet
  • UDP, USER Datagram Protocol
  • Relation between UMTS, UTRAN and IP transport
  • Protocol stacks for IP based interfaces in UTRAN
UTRAN IP TRANSPORT NETWORK
  • Mobile backhaul network evolution
  • Migration strategy for legacy backhaul to Ethernet
  • IP transport network topologies for UMTS access
  • IP “Cloud” network
  • Iub dual stack topology
LAYER 3 (IP) QoS SEPARATION FOR IP TRANSPORT
  • Default QoS settings
  • Setting the DSCP values
LAYER 2 (ETHERNET) QoS AND LOGICAL SEPARATION
  • L3 to L2 QoS mapping in RNC and NodeB
  • Queuing and scheduling in IP based transport
  • RED and WRED based queuing
  • Strict priority scheduling
  • Layer 2 Ethernet aggregation
IP LINK DIMENSIONING EXAMPLES IN UTRAN
  • Introduction
  • Single priority queue dimensioning
  • Multiple priority queues
  • Dual stack Iub dimensioning
NETWORK CONTROL & NODE SYNCHRONIZATION IN IP BASED UTRAN
  • UTRAN synchronization functions
  • Network synchronization
  • NTP
  • 1588 protocol overview
UTRAN FLOW CONTROL IN IP BASED Iub
  • WCDMA RAN flow control
  • R99 PS flow control
  • HSPA flow control

Target audience

Target audience is radio engineers and project managers as well as network architects.

Pre-requisites

The participants should have good working knowledge on mobile systems and IP.

Duración del curso

2 days

Precio

1.950 €

Code

WM0049

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