Handovers (HOs) are crucial in cellular networks for ensuring connectivity to mobile users, but traditional HOs face challenges in complex networks with diverse users and smaller cells.
To address these challenges, 3GPP introduced conditional handovers (CHOs) which prepare multiple cells for a single user, aiming to increase HO success rates and reduce delays.
However, CHOs bring new challenges like efficient resource allocation and managing signaling overhead, which require optimization.
A new framework utilizing meta-learning for CHO optimization within the O-RAN paradigm has shown significant performance improvements, outperforming 3GPP benchmarks by at least 180% in dynamic signal conditions.