THE ACTIVE SET MANAGEMENT METHOD OF MOBILE TERMINAL ON OFDMA-TDMA BASED HIGH-SPEED PORTABLE INTERNET SYSTEM

摘要

A method for managing an active set in an OFDMA(Orthogonal Frequency Division Multiple Access)-TDMA(Time Division Multiple Access) based mobile Internet system is provided to prevent a waste of resources and thus enhance performance of the overall system by constructing an active set with base stations of high mobility, managing base stations of low mobility as a semi-active set, and omitting information about the reservation of resources among pre-handover contents. An active set and a semi-active set are discriminately operated by using statistical data about movement habit of a terminal in addition to signal conditions. The terminal is operated based on the past experience values with respect to probability of movement from the current location to neighbor base stations, and if the probability of movement of the terminal to a base station among target base stations within the active set is smaller than any threshold value operated by a system, the terminal is admitted to a semi-active set.