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

    公开(公告)号:US20230413126A1

    公开(公告)日:2023-12-21

    申请号:US18338342

    申请日:2023-06-20

    CPC classification number: H04W36/0033 H04W36/32 H04W36/18

    Abstract: The present invention provides UE mobility context creation at RIC/ORAN in 4G and 5G systems. It does this by determining a User Equipment (UE) UE is moving seamlessly from across CUs in connected mode using S1/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.

    Paging Optimization Using RIC/ORAN in 5G and 4G Systems

    公开(公告)号:US20230413233A1

    公开(公告)日:2023-12-21

    申请号:US18353800

    申请日:2023-07-17

    CPC classification number: H04W68/02 H04W28/0226 H04W68/005

    Abstract: In one embodiment, a method is disclosed for providing paging optimization using RIC/ORAN in 5G and 4G Systems, the method comprising: creating, by the RIC, mobility context and updating the mobility context based on UEs mobility information received from the CUs and eNBs; pushing, by the RIC, the policy to connected O-CUs/O-eNBs to forward paging whenever received from AMF/MME; buffering, by the O-CU/O-eNB buffers, the paging message, starting a timer and forwarding the paging message to RIC; performing, by the RIC, an STMSI lookup and if the RIC finds the UE context, identifying a target O-CU/target O-eNB and sending the corresponding DU/sectors where paging needs to be sent based on a calculated UE location; sending, by the targeted O-CU/O-CUs/O-eNBs, stage 1 paging to the DU/sectors; intimating, by the O-CU/O-eNB, the RIC about successful paging and deleting the buffered paging; notifying, by the RIC, other O-CUs/O-eNBs for paging cancellation so that other O-CUs/O-eNBs discard the buffered paging message; and continuing, by the O-CU/O-eNB, with normal paging when no paging cancellation is received from the RIC.

    Public Warning Based on UE Trajectory Calculations at RIC-ORAN in 4G & 5G Systems

    公开(公告)号:US20250008405A1

    公开(公告)日:2025-01-02

    申请号:US18341758

    申请日:2023-06-27

    Abstract: A method is disclosed of providing UE mobility context creation at RIC/ORAN in 4G and 5G systems, comprising: downloading, by a non RT RIC, a policy to connected centralized units (CUs) that whenever a User Equipment (UE) attaches to a CU and the UE's location changes, the Non-RT RIC be updated about UE's mobility; 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 Non-RT RIC about UEs mobility using RIC_UEID as the key; sending, by the target CU once the UE may be successfully transferred to target CU, the update to RIC with RIC_UEID; updating, by the RIC, the UE context with the provided details; using the UE context updated on every UE movement to calculate the UE's trajectory; determining the UE may be moving to an impacted region; and triggering a corresponding O-RAN Central Unit (O-CU)/O-RAN eNodeB (O-eNB) to alert the UE using a public warning system (PWS) message.

    Public Warning Messages for Emergency Services on Xn/X2 Interface

    公开(公告)号:US20230319538A1

    公开(公告)日:2023-10-05

    申请号:US18295262

    申请日:2023-04-03

    CPC classification number: H04W4/90 H04W4/12

    Abstract: This invention provides warning messages for emergency services in a wireless network. In one embodiment, a method of providing public messages for emergency services includes sending, by a Core Access and Mobility Management Function (AMF), a warning message to a first node over a first interface; broadcasting, by the first node, the warning message to all User Equipments (UEs) in the area; sending, by the first node, a warning response message to the AMF; sending, by the first node, the warning message to at least one other node connected over a second interface to the first node; and broadcasting, by the at least one other node, the warning message to all UEs in their respective area and sending a warning message response back to the first node over the second interface.

Patent Agency Ranking