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2020-08-15, 03:21 AM
1 Introduction .............................................................................................................................. 5
2 Vo5G Has Been Standardized Together with 5G ............................................................. 5
2.1 What Is Vo5G? ...................................................................................................................... 5
2.2 Vo5G Standard Development .......................................................................................... 7
2.3 Voice and Video Codec Standard Development ....................................................... 7
2.4 Introduction to the Vo5G Voice/Video Communication Solution ............................ 8
2.4.1 VoNR .................................................................................................................................................... 8
2.4.2 EPS FB.................................................................................................................................................... 9
2.4.3 VoeLTE ................................................................................................................................................. 11
2.4.4 RAT FB .................................................................................................................................................. 11
2.5 Introduction to the Vo5G SMS and USSD Solutions ..................................................... 13
2.6 Vo5G Solution on Different 5G Networks ...................................................................... 13
2.6.1 Introducing 5G by EPC NSA ............................................................................................................13
2.6.2 Introducing 5G by 5GC ...................................................................................................................15
3 Vo5G Is an Important Technology for Accelerating 5G Development .................... 19
4 Road to Vo5G: IMS Readiness Is the Prerequisite ........................................................... 20
5 Road to Vo5G: Accelerating VoLTE Commercialization Is the Basis.......................... 21
5.1 Voice Solution Selected at the Initial Stage of 5G Commercialization .................. 21
5.2 Evolution to VoNR ............................................................................................................... 22
5.2.2 Path1: VoLTE->EPS FB->VoNR ..........................................................................................................23
5.2.3 Path2: VoLTE-> VoNR ........................................................................................................................23
5.2.4 Path3:VoLTE-> VoeLTE->RAT FB->VoNR ......................................................................................23
5.3 Accelerating VoLTE as the Fundamental Network of Vo5G .................................... 24
6 After Vo5G: Industry-oriented Real-Time Voice and Video Communication
Evolves Continuously ............................................................................................................... 25
6.1 5G Will Bring New Changes to Carriers' Real-Time Voice and Video
Communication ....................................................................................................................... 25
6.2 3GPP Release 16 Has Initiated a Research on the Next-Generation Real-Time
Communications Networks.................................................................................................... 25
7 Conclusion .............................................................................................................................. 26
8 Glossary ................................................................................................................................... 27


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