LTE Advanced: 3GPP Solution for IMT-Advanced > 네트워크

List of Contributors

Preface

Acknowledgements

List of Abbreviations

1 Introduction

1.1 Introduction

1.2 Radio Technology Convergence Towards LTE

1.3 LTE Capabilities

1.4 Underlying Technology Evolution

1.5 Traffic Growth

1.6 LTE-Advanced Schedule

1.7 LTE-Advanced Overview

1.8 Summary

2 LTE-Advanced Standardization

2.1 Introduction

2.2 LTE-Advanced and IMT-Advanced

2.3 LTE-Advanced Requirements

2.4 LTE-Advanced Study and Specification Phases

2.5 Further LTE-Advanced 3GPP Releases

2.6 LTE-Advanced Specifications

2.7 Conclusions

References

3 LTE Release 8 and 9 Overview

3.1 Introduction

3.2 Physical Layer

3.3 Architecture

3.4 Protocols

3.5 EPC and IMS

3.6 UE Capability and Differences in Release 8 and 9

3.7 Conclusions

References

4 Downlink Carrier Aggregation

4.1 Introduction

4.2 Carrier Aggregation Principle

4.3 Protocol Impact from Carrier Aggregation

4.4 Physical Layer Impact from Carrier Aggregation

4.5 Performance

4.6 Band Combinations for Carrier Aggregation

4.7 Conclusions

Reference

5 Uplink Carrier Aggregation

5.1 Introduction

5.2 Uplink Carrier Aggregation Principle

5.3 Protocol Impacts from Uplink Carrier Aggregation

5.4 Physical Layer Impact from Uplink Carrier Aggregation

5.5 Performance

5.6 Band Combinations for Carrier Aggregation

5.7 Conclusions

References

6 Downlink MIMO

6.1 Introduction

6.2 Downlink MIMO Enhancements Overview

6.3 Protocol Impact from Downlink MIMO Enhancements

6.4 Physical Layer Impact from Downlink MIMO

6.5 Performance

6.6 Conclusions

References

7 Uplink MIMO

7.1 Introduction

7.2 Uplink MIMO Enhancements Overview

7.3 Protocol Impacts from Uplink MIMO

7.4 Physical Layer Impacts from Uplink MIMO

7.4.1 Uplink Reference Signal Structure

7.4.2 MIMO Transmission for Uplink Data

7.4.3 MIMO Transmission for Uplink Control Signalling

7.4.4 Multi-User MIMO Transmission in the Uplink

7.5 Performance

7.6 Conclusions

References

8 Heterogeneous Networks

8.1 Introduction

8.2 Base Station Classes

8.3 Traffic Steering and Mobility Management

8.3.1 Traffic Steering and Mobility Management in Idle State

8.3.2 Traffic Steering and Mobility Management in the Connected State

8.3.3 Traffic Steering and Mobility Management with Femto Cells

8.3.4 WiFi Offloading

8.4 Interference Management

8.4.1 Static Interference Avoidance through Frequency Reuse Patterns

8.4.2 Dynamic Interference Coordination in the Frequency Domain

8.4.3 Dynamic Interference Coordination in the Time Domain

8.4.4 Dynamic Interference Coordination in the Power Domain

8.5 Performance Results

8.5.1 Macro and Outdoor Pico Scenarios

8.5.2 Macro and Femto Scenarios

8.6 Local IP Access (LIPA)

8.7 Summary

References

9 Relays

9.1 Introduction

9.2 General Overview

9.3 Physical Layer

9.3.1 Inband and Outband Relays

9.3.2 Sub-frames

9.3.3 Retransmissions

9.3.4 Relays Compared to Repeaters

9.3.5 Relays in TD-LTE

9.4 Architecture and Protocols

9.4.1 Sub-frame Configuration with Relay Nodes

9.4.2 Bearer Usage with Relay Nodes

9.4.3 Packet Header Structure in the Relay Interface

9.4.4 Attach Procedure

9.4.5 Handovers

9.4.6 Autonomous Neighbour Relations

9.5 Radio Resource Management

9.6 Coverage and Capacity

9.6.1 Coverage Gain

9.6.2 User Throughput Gains

9.6.3 Cost Analysis

9.7 Relay Enhancements

9.8 Summary

References

10 Self-Organizing Networks (SON)

10.1 Introduction

10.2 SON Roadmap in 3GPP Releases

10.3 Self-Optimization

10.3.1 Mobility Robustness Optimization

10.3.2 Mobility Load Balancing

10.3.3 Minimization of Drive Tests

10.3.4 MDT Management and Reporting

10.3.5 Energy Savings

10.3.6 eNodeB Overlay

10.3.7 Capacity-Limited Network

10.3.8 Capacity and Coverage Optimization

10.4 Self-Healing

10.4.1 Cell Outage Compensation

10.5 SON Features in 3GPP Release 11

10.6 Summary

References

11 Performance Evaluation

11.1 Introduction

11.2 LTE-Advanced Targets

11.2.1 ITU Evaluation Environments

11.3 LTE-Advanced Performance Evaluation

11.3.1 Peak Data Rates

11.3.2 UE Categories

11.3.3 ITU Efficiency Evaluation

11.3.4 3GPP Efficiency Evaluation

11.4 Network Capacity and Coverage

11.5 Summary

References

12 Release 11 and Outlook Towards Release 12

12.1 Introduction

12.2 Release 11 LTE-Advanced Content

12.3 Advanced LTE UE Receiver

12.3.1 Overview of MMSE-MRC and MMSE-IRC Methods

12.3.2 Performance of UE Receiver using IRC and its Comparison to MRC Receiver for Various DL Transmit Modes

12.4 Machine Type Communications

12.5 Carrier Aggregation Enhancements

12.6 Enhanced Downlink Control Channel

12.7 Release 12 LTE-Advanced Outlook

12.8 Conclusions

References

13 Coordinated Multipoint Transmission and Reception

13.1 Introduction

13.2 CoMP Concept

13.3 Radio Network Architecture Options

13.4 Downlink CoMP Transmission

13.4.1 Enablers for Downlink CoMP in 3GPP

13.4.2 Signal Processing and RRM for CoMP

13.4.3 Other Implementation Aspects

13.5 Uplink CoMP Reception

13.6 Downlink CoMP Gains

13.7 Uplink CoMP Gains

13.8 CoMP Field Trials

13.9 Summary

References

14 HSPA Evolution

14.1 Introduction

14.2 Multicarrier Evolution

14.3 Multiantenna Evolution

14.4 Multiflow Transmission

14.5 Small Packet Efficiency

14.6 Voice Evolution

14.6.1 Adaptive Multirate Wideband (AMR-WB) Voice Codec

14.6.2 Voice Over IP (VoIP)

14.6.3 CS Voice Over HSPA (CSoHSPA)

14.6.4 Single Radio Voice Call Continuity (SR-VCC)

14.7 Advanced Receivers

14.7.1 Advanced UE Receivers

14.7.2 Advanced NodeB Receivers

14.8 Flat Architecture

14.9 LTE Interworking

14.10 Summary

References