US20250374146
2025-12-04
Electricity
H04W36/14
The patent application discusses a method for managing user equipment (UE) mobility across different radio access technologies, specifically between 4G LTE and 5G networks. It involves detecting when a UE crosses into a new coverage area and facilitating the handover of services between networks. This process includes transferring metadata to an access mobility function (AMF) in the new network to ensure seamless service continuation. This technology is vital for enhancing user experience as mobile devices frequently switch between different network types.
The innovation is relevant to the evolving landscape of wireless communications, particularly with the advent of 5G technology. As 5G networks build upon existing 4G infrastructures, the need for efficient interworking between these technologies becomes crucial. This method supports a seamless transition between networks, making it a key component in the broader context of global connectivity enhancements driven by 5G.
The application details the interworking between 5G and 4G networks, focusing on the movement of user equipment between these technologies. It describes how UEs can operate in different modes, such as unicast or multicast, while transitioning between network types. The system utilizes a service-based interface for controller elements to simplify these transitions. This innovation is designed to support future wireless technologies beyond 5G, ensuring forward compatibility and enhanced mobility services.
The system comprises various elements like processing systems, machine-readable mediums, and network components such as base stations and access points. These components work together to detect when a UE is leaving a network's coverage area and facilitate the necessary handover processes. This includes discovering and interacting with network functions like the AMF in 5G networks or the MME in LTE networks to manage the transition effectively.
The described system architecture involves multiple networks, including LTE and 5G access networks. Each network contains specific components like base stations, gateways, and control functions that manage data and service delivery. For instance, the LTE network includes entities like the Mobile Management Entity (MME) and Serving Gateway (SGW), while the 5G network features the Access Mobility Management Function (AMF) and Network Repository Function (NRF). These elements work in tandem to ensure seamless UE mobility and service continuity across different network technologies.