Patent ID: 8000300

Claim:
A mobile station, comprising: a radio channel condition evaluation unit evaluating radio channel conditions of one or more cells; a radio channel condition averaging unit averaging the evaluated radio channel condition over a predefined time period; a radio channel condition threshold storage unit storing thresholds of the radio channel conditions and message types in association with the cells, the thresholds and the message types being specified by a radio access network apparatus; a radio channel condition comparison unit comparing the averaged radio channel conditions for the cells with the thresholds associated with the cells; a radio channel condition reporting unit, if the averaged radio channel condition of any of the cells is greater than or equal to the threshold associated with the cell, generating a message of the message type associated with the cell, the message including a cell identifier and the radio channel condition of the cell and transmitting the generated message to the radio access network apparatus; the message types include a RRC (Radio Resource Control) message type and a MAC (Media Access Control) message type; and the RRC message type of messages and the MAC message type of messages are processed by a RRC entity and a MAC entity, respectively, in the mobile station.