3G RF Planning and Network Optimisation

Course Outline:

1. Introduction to 3G

• Evolution to 3G
• Requirements of 3G and 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.