Network Slicing – 3GPP defines “Network slicing” as a concept for running multiple logical customized networks on a shared common infrastructure inside the same PLMN ID, complying with agreed SLAs for different vertical industry customers and requested functionalities. To achieve this goal, network slicing needs E2E Network Slicing Architecture to be designed from an E2E perspective, spanning over different technical domains (e.g., device, access network, core network, transport network and network management system) and multiple vendors.
Network Slicing and Network Sharing are both 5G techniques used to partition network resources, the main difference is; Network Sharing allows multiple MNOs to share the same RAN network via different “PLMN ID” whereas Network Slicing allows an MNO to partition its network inside a single PLMN ID into multiple network slices via “NSSAI”