Patent ID: 8320918

Claim:
A method for selecting a cell by a mobile terminal in a mobile communication system comprised of a plurality of cells, the method comprising: determining that the mobile terminal is in a high mobility state; upon determining that the mobile terminal is in the high mobility state, determining that a predetermined event has occurred or that a timer has expired; and upon determining that the predetermined event has occurred or that the timer has expired, performing a cell re-selection process, the cell re-selection process including performing a first measurement at a first time period to identify a first set of cells having signal strengths over a predetermined threshold; performing a second measurement at a second time period to identify a second set of cells having signal strengths over the predetermined threshold; determining a variation between the first and second measurements, the determined variation being equal to a number of cells that are present in one but not both of the first and second sets divided by a total number of cells in both of the first and second sets; using the determined variation to determine that the mobile terminal has transitioned from the high mobility state to a substantially stationary state within the first and second sets of cells; if the mobile terminal is determined to have transitioned from the high mobility state to the substantially stationary state within the first and second sets of cells, determining a final cell re-selection time restriction by applying a first predetermined scale factor to a cell re-selection time restriction previously provided to the mobile terminal by a base station; and delaying an initiation of a subsequent cell re-selection process based on the final cell re-selection time restriction.