CONFIGURATION OF APPROVED RRM PARAMETERS FOR AN EU WITH HIGH DIFFERENCE

摘要

Embodiments of the present application disclose an access network device, including: a processing module, configured to generate requirement indication information, where the requirement indication information is used to indicate that user equipment UE needs to satisfy a radio resource management RRM requirement that is suitable for a high-speed mobile communication environment; and a sending module, configured to send the requirement indication information to the UE within coverage of a cell. The present application further discloses user equipment, a communications system, and a communication method, so as to resolve a prior-art technical problem that UE passes through a target but fails to well complete RRM because the UE moves at a quite high speed. The UE can adjust an RRM policy according to a preset RRM parameter suitable for a high-speed mobile communication environment, to shorten an intra-frequency cell reselection time, shorten a target cell identification time, shorten an in-synchronization/out-of-synchronization evaluation time, or shorten a measurement period, so as to satisfy the RRM requirement in the high-speed mobile communication environment, and ensure and improve network performance.