UE Mobility Context Creation at RIC/ORAN in 4G and 5G Systems

A method of providing UE mobility context creation at RIC/ORAN in 4G and 5G systems, comprising:

• determining a User Equipment (UE) UE is moving seamlessly from across CUs in connected mode using S 1/X2/N2/Xn Handovers;
• downloading, by a non RT RIC, a policy to connected CUs that whenever a UE latches with initial UE message, CU sends an Identity Request to get the UEs SUPI;
• determining whenever the UE attaches to the CU/DU with the initial UE message, the SUPI is learnt and sent back to the Non RT RIC, along with the SUPI CU/DU and sends CRNTI, STMSI, cell information as per the use cases.
• allocating, by the Non RT RIC, a fresh UE ID and creating a context with parameters including Current Location, UE ID allotted by RIC, Current CRNTI, and cell information;
• sending, by the Non RT RIC, the fresh UE ID to the CU that the CU maintains as part of the UE context information;
• determining whenever the UE moves within the CU served DUs, and updating the RIC about UEs mobility using RIC_UEID as the key;
• determining whenever the UE moves from this CU to another CU through handover, and transferring the RIC_UEID to the target CU as part of the handover context information exchanged;
• sending, by the target CU once the UE is successfully transferred to target CU, the update to RIC with RIC_UEID;
• and
• updating, by the RIC, the UE context with the provided details.