Data Centric UE
"Data centric" UE does not disable the E-UTRAN (4G) capability if voice services cannot be obtained.
Therefore, even if the CSFB and IMS voice service are not enabled in E-UTRAN (4G), the UE may remain camping on E-UTRAN (4G). And the UE will not obligate itself to move to UTRAN (3G) or GERAN (2G) to obtain the voice service.
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VoLTE (Voice over LTE) Introduction
While the UE attached to LTE network, the UE can initiate, or receive a voice or a video call. The UE achieves this, by connecting to an external network, which is the 'IMS' network. We can call this, Voice over LTE (VoLTE). This is exactly like when you would like to create a call, while…
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LTE (4G) Network Architecture
LTE (4G) Network Nodes LTE refers to 'Long Term Evolution', and the architecture of the LTE (4G) network is as following, eNodeB The eNodeB is the 4G site that the UE connects to. It provides the radio interface to the UE. MME MME refers to 'Mobility Management Entity'. The MME is responsible for authenticating the…
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