China Mobile VoLTE White Paper (V2)

Content

1. Foreword

2. Vision Statement

3. Relevant Requirements for VoLTE-oriented TD-LTE

3.1General 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 Interoperation with Legacy Network

3.2.6 TDD-FDD Converged Network

3.3 Core Network Aspects

3.3.1 IMS Supporting VoLTE/Voice Handover

3.3.2 Converged EPC Core Network

3.3.3 HSS

3.3.4 Diameter Signaling Network

3.3.5 Circuit Switch Network

3.3.6 Emergency Service

3.3.7 Supporting Network Disaster-Tolerance Capability

3.3.8 LTE Backhaul

3.3.9 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 Interworking and International Roaming Aspects

3.5.1 Interworking Requirements

3.5.2 International Roaming Requirements

3.6 Operation Aspects

3.6.1 Provisioning Requirements

3.6.2 Charging Requirements

3.6.3 Network Management Requirements

3.6.3.1 Alarm Management

3.6.3.2 Security Management

3.6.3.3 System Upgrade

3.6.3.4 Key Functionalities of NEs’ O&M

3.6.3.5 Self-Organizing Networks

3.6.3.6 Solution for Network Management Northbound Interface

3.6.3.7 OMC Key Function

3.6.3.8 MR Data

3.6.3.9 Signaling Information Software Built in Collection

3.7 Security Aspects

3.7.1 General Requirement

3.7.2 Network Security

3.7.3 Terminal security

3.7.4 Operation Management Security

4 Conclusion

Annex 1: Summary of Technical Requirements

Annex 2: Abbreviations