UMTS / WCDMA RF Planning and Network Optimisation

Overview:

In this course, the candidate will understand UMTS network, architecture and its capability. Able to understand RF network design and capacity planning.

Candidate will be able to optimize RF , 3G services and quality parameters using KPI. At the end of workshop, vendor specific reports, traces and counters will be used to study and optimize the network.

Duration:

Instructor led training , Conducted on regular and fast track program. Contact us.

Pre-requisites:

Degree in Engineering with sound knowledge on GSM network and basic knowledge in UMTS /WCDMA is needed.

Who should attend:

Telecom professionals who are responsible for RF planning & design and deployment of UMTS network. This course is also intended for managers and engineers who are responsible for network optimization.

COURSE OUTLINE :
1. Introduction to 3G

  • Evolution to 3G

o    Requirements of 3G

    • 3G key characteristics
  • Genesis of UMTS
    • History of UMTS
    • UMTS requirements on 3G
    • UMTS versus GSM/GPRS
  • UMTS Key Features
    • UMTS features
    • UMTS and the 3G requirements
    • Backward compatibility with GSM/GPRS
    • UMTS QoS classes
  • GSM/GPRS/EDGE Architecture
    • GSM voice architecture
    • GPRS data architecture
    • Enhancements provided by EDGE

2. UMTS System Architecture

  • UTRAN Architecture
  • Network Elements – Node B, RNC, MGW
  • Interfaces – Uu, Iu, Iub, Iur
  • Multiple Access Technologies – FDMA, TDMA, CDMA
  • Bearer – RAB – Radio Access Bearer Types

3.  Core Network – Circuit switched Domain and packet switched Domain

  • Functions of 3G MSC and GMSC
  • Functions of SGSN and GGSN
  • Mobility Management Signaling processes
  • Concept of PDP context and session management

4. Spreading and Channelization Codes and Spreading process

  • Spreading principle
  • Channelization codes
  • Scrambling Codes
  • Spread spectrum Gain
  • Scrambling Code Planning

5.  Power Control, Link Adaptation and Handover

  • Fast Link Adaptation
  • Power and capacity calculations
  • Power Control
  • Open loop
  • Outer Loop – RNC
  • Inner Loop – RBS
  • Control Channels and their Power settings
  • Power Ramping on RACH
  • Softer, Soft, hard handovers

6.  Air Interface and Channels, Signaling and Antenna Systems

  • Downlink and Uplink logical channels
  • Downlink and Uplink transport Channels
  • Downlink and Uplink Physical Channels
  • Common Pilot Channel and Sync Channel
  • Dedicated Control and Data Channel
  • MHA
  • Purposes
  • Specifications
  • dBm, Watt
  • Antenna
  • Type of Base Station Antenna
  • Specifications
  • Antenna Radiation Patterns

7.  Power and Link Budget

  • Link Budgets
  • Uplink Link Budgets
  • Downlink Link Budget for CPICH
  • Downlink Link Budget for Various Services (Connected Mode)
  • Uplink and Downlink and Service Comparison

8.  Capacity Planning and Optimization

  • Basic UMTS Traffic Engineering
  • Capacity Requirements
  • Uplink Capacity Estimation
  • Estimating Downlink Capacity
  • Effect of Video-Telephony and PS Data on Traffic Engineering
  • WCDMA Traffic Engineering and Video-Telephony
  • WCDMA Traffic Engineering and PS Data
  • Multi-Service Traffic Engineering
  • Multi-Service Capacity
  • Uplink and Downlink Capacity Comparison

9.  Optimizing for Capacity

  • Coverage and Capacity Tradeoffs
  • Capacity Estimation in a Deployed Network
  • Capacity Monitoring for a Deployed Network

10. Initial Parameter Settings and Cell Selection Procedures

  • Physical Layer Parameters
  • Frequency Selection and Management
  • Power Allocation
  • Cell selection procedure

11. Intra-Frequency Cell Reselection Parameters

  • Overview of the Intra-Frequency Cell Reselection Procedure
  • List of Intra-Frequency Cell Reselection Parameters
  • Intra-Frequency Cell Reselection Trade-offs in Idle Mode
  • Intra-Frequency Cell Reselection Parameter Recommendations for Idle Mode
  • Intra-Frequency Cell Reselection in CELL_FACH State
  • Inter-Frequency Cell Reselection Considerations

12.  Intra-Frequency Handover Parameters and events

  • Intra-Frequency Handover Procedure
  • Intra-Frequency Handover Parameters
  • Intra-Frequency Handover events
  • Intra-Frequency Handover Trade-offs
  • Intra-Frequency Handover Parameter Recommendations

13.  Service Optimization

  • KPI and Layered Optimization Approach
  • Principal KPI Definitions
  • Voice Service Optimization
  • Adaptive Multi-Rate (AMR) Codec
  • AMR Service
  • Call Setup, Events, and Signaling
  • Call Retention Event and Signaling
  • Connection Supervision and Link Quality Indicators
  • Troubleshooting AMR Failures
  • Parameter Optimization
  • Call Quality Metrics and Test Process
  • Optimization approach for streaming, mobile TV w.r.t  latency and packet drops

14.  PS Data Service Optimization

  • PS Data versus AMR Optimization
  • Typical PS Data Applications and QoS Profiles
  • Channel Reconfiguration and Resource Planning
  • Quality Metrics and Test Process
  • PS Data Parameters
  • Throughput efficiency

15.  Inter-System Planning and Optimization

  • Inter-System Boundary Planning
  • Inter-System Borders
  • Typical Inter-System Scenarios (2G & 3G)
  • Boundary Determination
  • Inter-System Transition in Connected Mode
  • Inter-System Change Procedures
  • Message Flows and Delays
  • Compressed Mode Issues and events
  • Inter-System Transition in Idle Mode
  • Inter-System Cell Reselection Parameters
  • Workshop using vendor specific reports traces and counters etc.
  • Case study of 3G network

16.   Overview of Transmission networks for  3G

  • Overview of TDM and IP based microwave radio
  • Planning 3G access links using IP MW radios
  • Details of IP over TDM and Ethernet radios.
  • Overview of jitter and latency in 3G transmission networks.