Multi-SIM Support in 5G Evolution: Challenges and Opportunities

Devices with multiple SIM cards are expected to prevail over the conventional devices with only one SIM. Despite the growing demand for such devices, only proprietary solutions are available so far. To fill this gap, the Third Generation Partnership Project (3GPP) is aiming at the development of a unified cross-platform solution for multi-SIM device coordination. This article extends the technical discussion and investigation of the 3GPP solutions for improving mobile terminated (MT) service delivery to multi-SIM devices. Implementation trade-offs, impact on quality of service, and possible future directions in 3GPP are outlined.