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Transmission Technologies

Ethernet Radio for Next Generation Mobile Network

Course Objectives:

The 4th generation (4G) of wireless technologies promises a much higher air interface data rate (over 100 Mbps) to users. Delivering such high data rates require a very fast and efficient backhaul network. The current T1/E1 backhaul using legacy TDM digital microwave radios cannot support such high data rate at reasonable costs. Therefore 4G broadband networks require all-IP and Ethernet based broadband backhaul solutions.

Key Benefits:

The course participants will acquire thorough understanding on transmissions of Ethernet packets over microwave radios, how to select the most technically compliant and cost effective IP Layer 2 microwave radio and effective use of adaptive modulation feature, the role of OSI layers in HSDPA/LTE mobile communications backhaul networks, step by step procedure to design end-to-end transmissions network using capacity requirements form set forth by RF and marketing groups. Participant will clearly understand how to plan links to meet 3G HSDPA end to end Jitter and delay requirements.

Pre-Requisite for Participants:

Good knowledge on Microwave or Link Planning on Path Loss or any link planning software tool.

Who Should Attend??
Transmissions radio link planning engineers and those who are involved in transmissions network planning with all-IP packet radios, maintenance and optimization for next generation mobile transmissions network.

Course Duration:

3-day workshop

Course Outlines:

Day 1

  • Brief Overview on Evolution of 3GPP family of standards
  • MEF (Metro Ethernet Forum)
  • MEF Certification Levels
  • MEF Carrier Ethernet Attributes
  • Meaning of ‘Native’ Ethernet?
  • Anatomy of a Packet
  • OSI Layers and overview and their role in packet radio transmissions
  • Legacy Microwave TDM Radio vs. All-IP Packet Radio
  • Microwave TDM and Packet Radio Differentiators
  • Wireless Ethernet Performance Bench Marks and Key Performances Indicators (Throughput, Latency, Quality of Service Controls)
  • Transmission of TDM data over Packet Network

Day 2

  • Introduction to Pseudo wire concept
  • Packet Radio Network Design and Dimensioning
  • Brief Overview Digital Modulation
  • Modulation and Channel Bandwidth
  • Adaptive modulation in packet radio
  • Traffic prioritization mechanism
  • Digital Interface and QoS Processing: VLAN tagging per 802.1q; Priority queuing (802.1p): port-based, VLAN or DiffServ priority bytes; 802.3x Flow Control.
  • QoS Protocols (IEEE std 802.1p: and DiffServ)
  • Ethernet Intelligent Layer 2 Operation (RSTP and Link Aggregation)
  • Concept of Overbooking and Contention Ratios
  • CIR and PIR Capacity Requirement Analysis

Day 3

  • Definition of network latency and jitter and their relationship to network delay,
  • Identification of the sources that introduce delay into data transmissions,
  • Explanation of how such variations in time values can affect application
  • Packet radio Network Architecture and Topology Planning
  • Reliability and Availability requirements in packet radios
  • Step by Step Packet Network Dimensioning Process
  • Synchronization Techniques in packet radios
  • How to compare and select from commercially available IP Layer 2 packet radios the most technically compliant and cost effective
  • How to plan access and backbone transmissions Networks using IP Packet radio
  • How to generate Link Planning Guidelines for Packet based Networks
  • Design Examples and Case Studies using Path Loss link planning tool

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