Rec. ITU-T G.1028.1 (02/2019) - End-to-end quality of service for video telephony over 4G mobile networks
Summary
History
FOREWORD
Table of Contents
Introduction
1 Scope
2 References
3 Definitions
     3.1 Terms defined elsewhere
     3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Brief introduction on video-telephony over LTE and assumptions
7 ViLTE network architecture
8 QoS requirements for ViLTE – Segmented approach
     8.1 Overview of QoS issues experienced by end-users
     8.2 User equipment (codec design and implementation)
     8.3 E-UTRAN (Radio resource management)
     8.4 Evolved packet core (QCI allocation and mobility management procedures)
     8.5 IMS and IP transit core (call control and signalling)
9 Budget estimation and QoS parameterization
     9.1 Relevant indicators
     9.2 Impact assessment of relevant operating conditions on QoS parameters
     9.3 Quality targets
10 Diagnostic strategy for QoS degradations
     10.1 QoS problem source-linked to availability of service
     10.2 QoS problem source-linked to network performance
     10.3 Tools and models for measurement and prediction of video quality
Bibliography