LTE to 3G circuit switched fallback — CSFB

Ever wondered why your phone falls back from LTE to 3G when making a voice call. This…

LTE RRC connection setup

Establishing an RRC connection in LTE typically involves the following steps:

SCTP connection setup, reconfiguration and release

LTE S1 handover between eNodeBs

LTE networks prefer using the X2 interface for performing inter eNodeB handovers. An S1 handover is a…

LTE X2 Handover between eNodeBs served by the same MME

LTE security: encryption and integrity protection presentation and call flow

LTE Identifiers: GUTI, GUMMEI, IMSI, RNTI, TAI and more

Voice over LTE (VoLTE) originating call

Voice over LTE (VoLTE) is the standard for voice call setup in LTE networks. When VoLTE is…