VoNR and Vo5G are two different technologies in the field of mobile communications.
Techincal differences of VoNR and Vo5G
VoNR stands for Voice over New Radio and refers to the transmission of voice over the new 5G mobile standard, which is based on the New Radio (NR) technology.
Vo5G, on the other hand, refers to the transmission of voice over the 5G network in general, regardless of whether it uses NR technology or not.
VoNR is specifically optimized for voice transmission and offers advantages over older technologies such as VoLTE (Voice over LTE). These include better voice quality, faster connection setup time, and lower latency, significant for real-time communication, such as phone calls.
Vo5G, on the other hand, is a general term that refers to using 5G networks for various applications, including voice transmission. It can refer to the use of 5G for the transmission of data, voice, or both.
Overall, both VoNR and Vo5G are important technologies for the future of mobile communications and will contribute to further improving the performance and efficiency of mobile networks.
Details on the technologies and their core network components:
VoNR
- Core network: 5G core network (5GC)
- Uses IP Multimedia Subsystem (IMS) for call control and session management
- Supports voice calls using the Enhanced Voice Services (EVS) codec, which provides better quality and wider frequency range than older codecs like AMR-WB
- Uses Dual Connectivity (DC) to provide seamless mobility between 5G NR and LTE networks, allowing voice calls to continue uninterrupted even as the user moves between coverage areas
- Supports both Non-Standalone (NSA) and Standalone (SA) deployment modes
Vo5G
- Core network: 5GC or LTE Evolved Packet Core (EPC)
- Uses IMS for call control and session management in 5GC, and Circuit Switched FallBack (CSFB) for EPC
- Supports various voice codecs, including AMR-WB, EVS, and VoLTE (in EPC)
- Uses mobility management techniques like handover and cell reselection to maintain call continuity as the user moves between coverage areas
- Supports both NSA and SA deployment modes
Mobility
In terms of call handling in mobility, both VoNR and Vo5G use similar techniques to maintain call continuity as the user moves between coverage areas.
These techniques include
- handover (where the call is transferred from one base station to another),
- cell reselection (where the user's device switches to a different cell within the same base station), and
- fast retransmission (where lost packets are quickly retransmitted to minimize call quality degradation).
These techniques are designed to ensure that voice calls remain connected and of high quality, even as the user moves around in their environment.
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