US Patent 11228621 Services-based architecture for IMS

In a system and a method for providing communication within IP Multimedia Subsystem (IMS) using a connectionless communication protocol, an IMS access layer, an IMS service layer, a common service utilities layer, a unified data repository layer, and an IMS network repository function (NRF) are provided. The IMS access layer terminates incoming communication that uses connection-oriented communication protocol. The IMS service layer is operatively connected to the IMS access layer and includes at least one micro-service implementing IMS service. The common service utilities layer is operatively connected to the IMS service layer and includes at least one utility accessible to the at least one micro-service. The unified data repository layer is operatively connected to, and accessible by, the common service utilities layer, the IMS service layer and the IMS access layer. The IMS NRF enables a network function (NF) or the micro-service to discover another NF or micro-service.