A SYSTEM TO COORDINATE THE CHANGING OF HANDOVER/CELL RESELECTION PARAMETERS BETWEEN E-UTRAN AND NON E-UTRAN RATS TO REDUCE REPEATED HANDOVER /CELL RESELECTION

摘要

An E-UTRAN communications system comprises: changing handover and/or cell reselection parameters of the E-UTRAN cell; generating a message for a neighbour cell of a different radio access technology (RAT) which comprises information for determining new handover and/or cell reselection parameters for the neighbour cell for reducing the repeated handover and/or cell reselection between the E-UTRAN and the other RAT; transmission in a non E-UTRAN cell of said parameters for use by a mobile device to control signal measurements performed as part of a handover and/or cell reselection process. The message may comprise data identifying changes made to the parameters of the E-UTRAN or new parameters for the non E-UTRAN cell. The data may comprise threshold values, which may define a low signal quality or when to consider other cells.