SRVCC (Single Radio Voice Call Continuity) in 5G refers to the ability to maintain an ongoing voice call as a user moves between 5G and legacy networks like 4G LTE, 3G, or 2G. While 5G primarily supports data services and not native voice calls, SRVCC ensures that voice calls initiated on a 5G network can continue seamlessly when transitioning to or from 4G or earlier network generations.
What is the function of SRVCC?
The function of SRVCC (Single Radio Voice Call Continuity) is to provide seamless voice call continuity as users transition between different network types, such as from LTE to 3G or 2G networks. SRVCC ensures that an ongoing voice call does not drop when a device moves between networks with different radio access technologies, thus maintaining call quality and connection throughout the transition.
The difference between SRVCC (Single Radio Voice Call Continuity) and VoLTE (Voice over LTE) lies in their roles and functionalities. SRVCC is a mechanism for maintaining ongoing voice calls as a user switches between LTE and legacy networks like 2G or 3G. VoLTE, on the other hand, is a technology that enables high-quality voice calls over the LTE network itself. While SRVCC ensures call continuity across network transitions, VoLTE provides the capability to make voice calls directly over LTE.
The difference between SRVCC (Single Radio Voice Call Continuity) and eSRVCC (Enhanced Single Radio Voice Call Continuity) is that eSRVCC provides improved capabilities for maintaining voice calls as users move between LTE and legacy networks. eSRVCC enhances the standard SRVCC by offering better call quality, reduced handover times, and more efficient call continuity. It improves upon SRVCC by addressing some of its limitations, particularly in terms of seamless transitions and overall voice service performance.
iRAT (Inter-RAT) and SRVCC (Single Radio Voice Call Continuity) both address issues related to network transitions, but they differ in scope and application. iRAT refers to the broader concept of handovers between different Radio Access Technologies (RATs), which includes transitioning between different network generations (e.g., from 4G to 3G). SRVCC specifically focuses on maintaining voice call continuity during these transitions. While iRAT encompasses various types of transitions and services, SRVCC is a specific mechanism aimed at ensuring uninterrupted voice calls.
