An Analysis of Secure Interoperation of EPC and Mobile Equipments
4G architecture is the latest 3GPP development when it comes to mobile networks design and optimization. Designed initially for data, but having a flexible architecture, 4G is capable of integrating IMS, this way bringing in voice and services. 3GPP wanted to facilitate the migration from 3G and non-3GPP solutions to the 4G design, therefore the core network components of 4G are capable of interacting with 3G core network devices, provided these ones have an interoperability feature. This way, even 3G or non-3GPP devices are capable of using the 4G services. Nevertheless, one of the biggest issues when inter-operating these solutions and devices is the security aspect.