Design of a Network Management System for 5G Open RAN

Design of a Network Management System for 5G Open RAN

연구 분야: Networking

학회: 2021 22nd Asia-Pacific Network Operations and Management Symposium (APNOMS)

The advent of fifth generation (5G) mobile communication system brings a new vision of the future for a diverse range of vertical industries. Both the number of connected devices and the amount of mobile data traffic will increase significantly. However, the deployment and operation of 5G networks also cost higher than previous generations of mobile networks. Especially, approximately 70% of total network costs are spent in building the radio access network (RAN). Open RAN is potential solution to deploy RANs in a lower cost. An Open RAN can be constructed via components of different vendors. This brings challenges for effective management of an Open RAN. In this paper, we will propose an architectural design of a network management system (NMS) for 5G Open RAN. The proposed NMS is compliant with the O-RAN architecture defined by the O-RAN Alliance. A set of management functions are provided in the NMS to facilitate the operations, administration, and maintenance (OAM) of an Open RAN. The interactions of the Open RAN NMS with current Telecom OSSs are also addressed.