Patent ID: 8472407
Filing Date: 2013-06-25
Classification: H04W

Abstract:
1. A handover control method by which a radio base station performs a handover control on a mobile station on a basis of a measurement report transmitted from the mobile station, the method comprising the steps of: measuring radio qualities in a plurality of different frequency cells by the mobile station in a predetermined measurement period; when the mobile station determines that a radio quality in a specific frequency cell satisfies a reporting criterion, activating a timer by the mobile station, the timer being configured to measure a period during which the radio quality in the specific frequency cell continues to satisfy the reporting criterion; and when the timer expires, transmitting the measurement report to the radio base station by the mobile station, the measurement report including the radio quality in the specific frequency cell, wherein when the mobile station determines that a radio quality in a first frequency cell having a higher priority than a second frequency cell satisfies the reporting criterion after determining that a radio quality in the second frequency cell satisfies the reporting criterion and activating a second timer, the mobile station stops the second timer and actives a first timer.