Table of contents for Umts network planning, optimization, and inter-operation with GSM / Moe Rahnema.


Bibliographic record and links to related information available from the Library of Congress catalog


Information from electronic data provided by the publisher. May be incomplete or contain other coding.


Counter
PREFACE

ACKNOWLEDGMENTS

CHAPTER 1: INTRODUCTION

1.1 Overview of 3G Standards and WCDMA Releases

1.2 3G Challenges

1.3 Future Trends

CHAPTER 2: UMTS System and Air Interface Architecture

2.1 Network Architecture

2.1.1 The Access Stratum

2.1.2 The Non-Access Stratum and Core Network

2.1.3 UTRAN Architecture

2.1.4 Synchronization in the UTRAN

2.1.5 UE Power Classes

2.2 The Air Interface Modes of Operation

2.3 Spectrum Allocations

2.4 WCDMA and the Spreading Concept

2.4.1 Processing Gain and Impact on C/I Requirement

2.4.2 Resistivity to Narrowband Interference

2.4.3 Rake Reception of Multipath Signals and the Efficiency

2.4.4 Variable Spreading and Multi-Code Operation

2.5 Cell Isolation Mechanism and Scrambling Codes

2.6 Power Control Necessity

2.7 Soft/Softer Handover and the Benefits

2.8 Framing and Modulation

2.9 Channel Definitions

2.9.1 Physical Channels

2.9.1.1 Uplink Physical Channels

2.9.1.2 Downlink Physical Channels

2.9.2 Frame Timing Relationships

2.9.2.1 DPCCH and DPDCH on Uplink and Downlink

2.9.2.2 Uplink–Downlink Timing at UE

2.9.2.3 HS–SCCH/HS–PDSCH Timing Relationship

2.9.3 Transport Channels

2.9.4 Channel Mappings

2.9.5 Logical Channels

2.10 The Radio Interface Protocol Architecture

2.10.1 The RLC Sub-layer

2.10.2 The MAC Protocol Functions

2.10.3 RRC and Channel State Transitions

2.10.4 Packet Data Convergence Sub-layer (PDCP)

2.10.5 The Broadcast Multicast Control (BMC) Protocol

2.11 The Important Physical Layer Measurements

2.11.1 UE Link Performance Related Measurements

2.11.1.1 CPICH RSCP

2.11.1.2 UTRA Carrier RSSI

2.11.1.3 CPICH Ec/No

2.11.1.4 BLER

2.11.1.5 UE Transmitted Power on One Carrier

2.11.1.6 UE Transmission Power Headroom

2.11.2 UTRAN Link Performance Related Measurements

2.11.2.1 Received Total Wide Band Power

2.11.2.2 SIR

2.11.2.3 Transmitted Carrier Power

2.11.2.4 Transmitted Code Power

2.11.2.5 Transport Channel BER

2.11.2.6 Physical Channel BER

References

Chapter 3: Multipath and Path Loss Modeling

3.1 Multipath Reception

3.1.1 Delay Spread

3.1.2 Coherence Bandwidth

3.1.3 Doppler Effect

3.1.4 Small-scale Multipath Effects

3.1.5 Channel Coherence Time

3.2 3GPP Multipath Channel Models

3.3 ITU Multipath Channel Models

3.4 Large-Scale Distance Effects

3.4.1 Lognormal Fading

3.4.2 Path Loss Models

3.4.2.1 The Free-space Path Loss Model

3.4.2.2 The Two-ray Ground Reflection Path Loss Model

3.4.2.3 Okumura-Hata Path Loss Models

3.4.2.4 COST 231 Hata Model

3.4.2.5 Two-Slope Extension to Hata Path Loss Models

3.4.2.6 COST 231 Walfisch-Ikegami Path Loss Model

3.4.2.7 Ray Tracing Models

3.4.2.8 Indoor Path Loss Modeling

3.4.3 Model Tuning and Generalized Propagation Models

3.4.3.1 The Model Tuning Process

3.4.3.2 Map Data Requirement

3.4.3.3 Model Resolution Requirement

3.5 Far-Reach Propagation Through Ducting

References

Chapter 4: Formulation and Analysis of the Coverage-capacity and Multi-user Interference Parameters in UMTS

4.1 The Multi-user Interference

4.2 Interference Representation

4.2.1 Noise Rise

4.2.2 Load Factor

4.2.3 Geometric Factor

4.2.4 The f Factor

4.3 Dynamics of the Uplink Capacity

4.4 Downlink Power-capacity Interaction

4.4.1 The General Power-capacity Formula on Downlink

4.4.2 Downlink Effective Load Factor and Pole Capacity

4.4.3 Single Service Case and Generalization to Multi-service Classes

4.4.4 Implications of Downlink Power-capacity Analysis

4.5 Capacity Improvement Techniques

4.6 Remarks in Conclusion

References

Chapter 5: Radio Site Planning, Dimensioning, and Optimization

5.1 Radio Site Locating

5.2 Site Engineering

5.2.1 Pilot and Common Channel Power Settings

5.2.2 Pilot Coverage Verification

5.2.3 RACH Coverage Planning

5.2.4 Site Sectorisation

5.2.5 Controlling Site Overlap and Interference

5.3 Link Budgeting for Dimensioning

5.3.1 Uplink Link Budgeting and Static Analysis

5.3.1.1 Uplink Load Factor Formulation

5.3.1.2 Base Station Sensitivity Estimation

5.3.1.3 Soft Handover Gain Estimation

5.3.1.4 The Uplink Link Budgeting Formulation

5.3.2 Downlink Load and Transmit Power Checking

5.3.3 Downlink Link Budgeting for the Pilot Channel (P-CPICH)

5.3.4 HS-PDSCH Link Budget Analysis

5.3.5 Setting Interference Parameters

5.4 Simulation-based Detailed Planning

5.4.1 Uplink Simulation Iterations

5.4.2 Downlink Simulation Iterations

5.4.3 Area Coverage Probabilities

5.5 Primary CPICH Coverage Analysis

5.6 Primary and Secondary CCPCH Coverage Analysis

5.7 Uplink DCH Coverage Analysis

5.8 Pre-launch Optimization

5.9 Defining the Service Strategy

5.10 Defining Service Requirements and Traffic Modeling

5.11 Scrambling Codes and Planning Requirements

5.12 Inter-operator Interference Protection Measures

5.12.1 The Characterizing Parameters

5.12.2 Effects on Downlink and Uplink

5.12.3 The Avoidance Measures

References

Chapter 6: The Layered and Multi-carrier Radio Access Design

6.1 Introduction

6.2 Service Interaction Analysis

6.3 Layered Cell Architectures

6.3.1 Carrier Sharing

6.3.2 Multi-carrier Design

References

Chapter 7: Utilization of GSM Measurements for UMTS Site Overlay

7.1 Introductory Considerations

7.2 Using GSM Measurements to Characterize Path Losses in UMTS

7.2.1 Local Cumulative Path Loss Distribution

7.2.2 Model Tuning

7.3 Neighbor-Cell Overlap and Soft Handover Overhead Measurement

7.4 Interference and Pilot Pollution Detection

References

Chapter 8: Power Control and Handover Procedures and Optimization

8.1 Power Control

8.1.1 Open Loop Power Control

8.1.1.1 Uplink Open Loop Power Control

8.1.1.2 Downlink Open Loop Power Control

8.1.2 Fast Closed Loop Power Control (Inner-loop PC)

8.1.2.1 Closed Loop Fast Power Control Specifics on Uplink

8.1.2.2 Closed Loop Fast Power Control Specifics on Downlink

8.1.3 Outer-Loop Power Control

8.1.3.1 Estimating the Received Quality

8.1.3.2 Settings of the Maximum and Average Target Eb/N0

8.1.3.3 Power Control in Compressed Mode

8.1.4 Power Control Optimization

8.2 Handover Procedures and Control

8.2.1 Neighbor Cell Search and Measurement Reporting

8.2.1.1 Intra-frequency HO Measurements

8.2.1.2 Inter-frequency and Inter-system HO Measurements

8.2.1.3 UE Internal Measurements

8.2.1.4 BTS Measurements

8.2.2 Hard Handover

8.2.3 Soft (and Softer) Handovers

8.2.3.1 WCDMA SHO Algorithm and Procedures

8.2.3.2 Measurement Reporting in Support of SHO

8.2.3.3 SHO Gains

8.2.3.4 SHO Performance Optimization

References

Chapter 9: Radio Resource and Performance Management

9.1 Admission Control

9.1.1 Processing Admission Control

9.1.2 Radio Admission Control

9.1.2.1 Uplink Radio Admission

9.1.2.2 Downlink Radio Admission

9.2 Congestion Control

9.2.1 Congestion Detection Mechanisms

9.2.2 Congestion Resolving Actions

9.3 Channel Switching and Bearer Reconfiguration

9.4 Code Resource Allocation

9.4.1 Code Allocation on the Uplink

9.4.2 Code Allocation on the Downlink

9.5 Packet Scheduling

9.5.1 Time Scheduling

9.5.2 Code Division Scheduling

9.5.3 Scheduling on the HS-DSCH Channel

9.5.4 Integration with Load Control

References

Chapter 10: Means to Enhance Radio Coverage and Capacity

10.1 Coverage Improvement and the Impact

10.2 Capacity Improvement and the Impact

10.3 HSDPA Deployment

10.4 Transmitter Diversity

10.4.1 Transmit Diversity Benefits and Gains

10.4.2 Mobile Terminal Requirements

10.5 Mast Head Amplifiers

10.5.1 MHA Benefit on System Coverage

10.5.2 MHA Impact on System Capacity

10.6 Remote Radio Heads (RRH)

10.6.1 RRH Benefits

10.7 Higher Order Receiver Diversity

10.7.1 Operation and Observed Benefits

10.7.2 Impact to Downlink Capacity

10.7.3 Diversity Reception at Mobile Terminal

10.8 Fixed Beam and Adaptive Beam Forming

10.8.1 Implementation Considerations and Issues

10.8.2 Gains of Beam Forming

10.9 Repeaters

10.9.1 Operating Characteristics

10.9.2 Repeater Isolation Requirements

10.9.3 Repeater Coverage and Capacity Evaluation

10.9.4 Impact on System Capacity

10.10 Additional Scrambling Codes

10.11 Self-Organizing Networks

References

Chapter 11: Co-planning and Inter-operation with GSM

11.1 GSM Co-location Guidelines

11.1.1 The Isolation Requirements

11.1.2 Isolation Mechanisms

11.1.3 Inter-modulation Problems and Counter-measures

11.1.4 Antenna Configuration Scenarios

11.2 Ambient Noise Considerations

11.3 Inter-operation with GSM

11.3.1 Handover between the Operator’s GSM and UMTS Networks

11.3.2 Handover with other UMTS Operators

References

Chapter 12: AMR Speech Codecs: Operation and Performance

12.1 AMR Speech Codec Characteristics and Modes

12.2 AMR Implementation Strategies

12.2.1 AMR Network Based Adaptation

12.2.2 AMR Source Controlled Rate Adaptation

12.3 Tradeoffs between AMR Source Rate and System Capacity in WCDMA

12.4 AMR Performance under Clean Speech Conditions

12.5 AMR Performance under Background Noise and Error Conditions

12.6 Codec Mode Parameters

12.6.1 Compression Handover Threshold

12.6.2 AMR Adaptation Parameters

12.7 The AMR-Wideband (WB)

12.8 AMR Bearer QoS Requirements

References

Chapter 13: The Terrestrial Radio Access Network Design

13.1 RNC Planning and Dimensioning

13.2 Node Interconnect Transmission

13.2.1 Node B to RNC

13.2.1.1 Using ATM Virtual Paths

13.2.1.2 Using Microwave Links

13.2.1.3 Using Leased Lines

13.2.1.4 Sharing GSM Transmission Facilities

13.2.2 RNC to Core Network Nodes

13.3 Link Dimensioning

13.3.1 Protocol Overhead

13.3.2 Dimensioning of Node B–RNC Link (Iub)

13.3.2.1 Sizing the Voice Links

13.3.2.2 Sizing Data Links

13.3.3 RNC–MSC Link Dimensioning

13.3.4 RNC to SGSN Link Dimensioning

13.3.5 SGSN to RNC Link Dimensioning

13.3.5.1 No Service Priorities Implemented

13.3.5.2 Service Priorities Implemented

References

Chapter 14: The Core Network Technologies, Design, and Dimensioning

14.1 The Core Network Function

14.2 The IP Core Network Architecture

14.2.1 The Serving GPRS Support Node (SGSN)

14.2.1.1 SGSN Node Architectures

14.2.2 Gateway GPRS Support Node (GGSN)

14.2.3 The HLR

14.2.3.1 HLR Implementation Architecture

14.2.4 The Core Network Protocol Architecture in GPRS

14.2.5 SS7 Over IP Transport Option (SS7oIP)

14.3 Mobility Management in GPRS

14.3.1 Location and Routing Area Concepts

14.3.2 User States in Mobility Management

14.3.3 MS Modes of Operation

14.4 IP Address Allocation

14.5 Core Network in WCDMA

14.6 IP Multimedia Subsystem (IMS)

14.7 Roaming in Mobile Networks

14.7.1 Mobility Handling Mechanisms in Roaming

14.8 Soft Switching

14.8.1 Benefits of Soft Switching

14.8.2 Transition to Soft Switching

14.9 Core Network Design and Dimensioning

14.9.1 Traffic Model

14.9.2 The No Traffic Information Scenario

14.9.3 Dimensioning of SGSN, GGSN, and the Interfaces

14.9.4 Active PDP Contexts and Impact of Call Mix on Dimensioning

14.9.5 Signaling Traffic and Link Dimensioning Guidelines

14.9.5.1 Signaling between SGSNs and GGSNs

14.9.5.2 Signaling between SGSN and HLR

14.9.5.3 Signaling between SGSN and MSC/VLR

14.9.5.4 Signaling between GGSN and HLR

14.9.6 Protocol Overheads

14.10 Core Network Transport Technologies

14.10.1 Dedicated Private Lines

14.10.1.1 Advantages and Disadvantages of Private Lines

14.10.1.2 Sizing Criteria for Private Lines

14.10.2 ATM Virtual Circuits

14.10.2.1 ATM Advantages and Disadvantages Compared to Private Lines

14.10.2.2 Sizing Parameters and Issues

14.10.3 Frame Relay

14.10.3.1 Frame Relay Advantages and Disadvantages Compared to ATM [26]

14.10.3.2 Sizing Parameters and Issues

14.10.4 IP Transport

14.10.5 Transport Technology Selection for Core Network

References

Chapter 15: UMTS QoS Classes, Parameters, and Inter-workings

15.1 The QoS Concept and its Importance

15.2 QoS Fundamental Concepts

15.3 QoS Monitoring Process

15.4 QoS Categories in UMTS

15.4.1 Conversational Traffic

15.4.2 Streaming Traffic

15.4.2.1 Streaming Packet Switched QoS

15.4.3 Interactive Traffic

15.4.4 Background Traffic

15.5 Instant Messaging

15.6 UMTS Bearer Service Attributes

15.6.1 Ranges of UMTS Bearer Service Attributes

15.6.2 Ranges of Radio Access Bearer Service Attributes

15.7 UMTS QoS Mechanisms

15.8 UMTS QoS Signaling

15.9 UMTS–Internet QoS Inter-working/Mapping

15.10 End-to-End QoS Delay Analysis

15.11 ATM QoS Classes

15.12 More on QoS Mechanisms in IP Networks

15.13 IP Precedence to ATM Class of Service Mapping

15.14 Web Traffic Classification for QoS

15.15 QoS Levels of Agreement

References

Chapter 16: The TCP Protocols, Issues, and Performance Tuning over Wireless Links

16.1 The TCP Fundamentals

16.1.1 TCP Connection Set Up and Termination

16.1.2 Congestion and Flow Control

16.1.2.1 Slow Start Congestion Control Phase

16.1.2.2 Congestion Avoidance Phase

16.1.2.3 TCP Congestion Algorithm Bottlenecks in Wireless Networks

16.1.3 TCP RTO Estimation

16.1.4 Bandwidth-Delay Product

16.2 TCP Enhanced Lost Recovery Options

16.2.1 Fast Retransmit

16.2.2 Fast Recovery

16.2.3 Selective Acknowledgement (SACK)

16.2.4 The Timestamp Option

16.3 TCP Variations as used on Fixed Networks

16.3.1 TCP Tahoe

16.3.2 TCP Reno

16.3.3 TCP New Reno

16.3.4 TCP SACK

16.4 Characteristics of Wireless Networks and Particularly 3G

16.4.1 BLER, Delays, and Delay Variations

16.4.2 Delay Spikes

16.4.3 Dynamic Variable Bit Rate

16.4.4 Asymmetry

16.5 TCP Solutions Proposed for Wireless Networks

16.5.1 Link Layer Solutions

16.5.1.1 The RLC Solution for TCP Connections

16.5.2 TCP Parameter Tuning

16.5.2.1 TCP Rxwnd tuning

16.5.2.2 TCP Maximum Segment Sizing (MSS)

16.5.2.3 Initial Transmission Window

16.5.3 Selecting the Proper TCP Options

16.5.3.1 TCP SACK Option for Wireless

16.5.3.2 TCP Timestamp Option

16.5.3.3 Fast Retransmit and Recovery

16.5.4 Conventional TCP Implementation Options

16.5.5 Split TCP Solutions

16.5.6 Indirect TCP (I-TCP)

16.5.7 Mobile TCP Protocol

16.5.8 Mobile-End Transport Protocol

16.5.9 The Proxy Solutions

16.5.10 TCP End-to-End Solutions

16.5.10.1 Probing TCP

16.5.10.2 TCP Santa Cruz

16.5.10.3 Wireless TCP (WTCP99)

16.6 Application Level Optimization

References

Chapter 17: RAN Performance Root Cause Analysis and Trending Techniques for Effective Troubleshooting and Optimization

17.1 RAN KPIs

17.2 Measurement Guidelines

17.2.1 Live Network Traffic

17.2.2 Drive Testing

17.3 Correlation Based Root Cause Analysis

17.3.1 Correlative Analysis Based on a priori Knowledge

17.3.2 Correlation Analysis Based on Data Clustering

17.3.2.1 Data Reduction and Clusterization Based on Self-organized Maps (SOM)

17.3.2.2 Clustering of SOM Data Based on the K-means Algorithm

17.4 Applications to Network Troubleshooting and Performance Optimization

17.4.1 Formation of Vector PIs

17.4.2. Data Scaling

17.4.3 Clustering of Performance Data (Building Performance Spectrum)

17.4.4 Clustering Cells into Behavioral Classes

Appendix

References

Abbreviations

Index



Library of Congress subject headings for this publication:
Global system for mobile communications.