Content

1. Foreword

2. Vision Statement

3. Relevant Requirements for VoLTE-oriented TD-LTE

3.1 General Overview

3.2 Wireless Network Aspects

3.2.1 Multi-Band Network

3.2.2 Continuous and Deep Coverage

3.2.3 Construction of Base Stations

3.2.4 Network Performance

3.2.5 Requirements for Radio Network to Support Voice and Data Service

3.2.6 TDD-FDD Converged Network

3.3 Core Network Aspects

3.3.1 Converged EPC Core Network

3.3.2 HSS

3.3.3 IMS Supporting VoLTE/eSRVCC

3.3.4 DRA

3.3.5 Circuit Switch Network

3.3.6 LTE Backhaul

3.3.7 LTE Traffic Service

3.4 Terminal Aspects

3.4.1 Multi-Mode and Multi-band

3.4.2 General Requirements for VoLTE Terminal

3.4.3 Interoperation Requirements for Terminal

3.4.4 International Roaming Requirements for Terminal

3.4.5 Support LTE-A Partial Function Step by Step

3.4.6 USIM

3.5 International Roaming Aspects

3.6 Operation Aspects

3.6.1 Alarm Management

3.6.2 Security Management

3.6.3 System Upgrade

3.6.4 Key Functionalities of NEs’ O&M

3.6.5 Self-Organizing Networks

3.6.6 Solution for Network Management Northbound Interface

3.6.7 OMC Key Function

3.6.8 MR Data

3.6.9 Signaling Information Software Built in Collection

4. Conclusion

Annex 1: Summary of Technical Requirements

Annex 2: Abbreviations

China Mobile VoLTE White Paper