A communication method performed by a base station , comprising: measuring a first reception quality of an uplink reference signal broadcasted by a terminal device ; generating and transmitting (S301) an initial message for instructing a neighbor base station to measure a second reception quality of the uplink reference signal, when the first measured reception quality is lower than a preset first threshold; receiving (S303) a response message from the neighbor base station in response to the initial message, wherein said response message includes a measured second reception quality which is higher than a preset second threshold; said method being characterized by : decreasing (S304) the first threshold; measuring (S305) the first reception quality of the uplink reference signal after decreasing the first threshold; generating (S306) a notification message indicating the measured first reception quality and transmitting the notification message to the neighbor base station, when the measured first reception quality is lower than the decreased first threshold; and determining (S311) whether to instruct the terminal device to handover to the neighbor base station based on a response message (S309) from the neighbor base station in response to the notification message, wherein the response message indicates the second reception quality measured by the neighbor base station, wherein said second reception quality is higher than an increased second threshold. measuring a first reception quality of an uplink reference signal broadcasted by a terminal device ; generating and transmitting (S301) an initial message for instructing a neighbor base station to measure a second reception quality of the uplink reference signal, when the first measured reception quality is lower than a preset first threshold; receiving (S303) a response message from the neighbor base station in response to the initial message, wherein said response message includes a measured second reception quality which is higher than a preset second threshold; said method being characterized by : decreasing (S304) the first threshold; measuring (S305) the first reception quality of the uplink reference signal after decreasing the first threshold; generating (S306) a notification message indicating the measured first reception quality and transmitting the notification message to the neighbor base station, when the measured first reception quality is lower than the decreased first threshold; and determining (S311) whether to instruct the terminal device to handover to the neighbor base station based on a response message (S309) from the neighbor base station in response to the notification message, wherein the response message indicates the second reception quality measured by the neighbor base station, wherein said second reception quality is higher than an increased second threshold. decreasing (S304) the first threshold; measuring (S305) the first reception quality of the uplink reference signal after decreasing the first threshold; generating (S306) a notification message indicating the measured first reception quality and transmitting the notification message to the neighbor base station, when the measured first reception quality is lower than the decreased first threshold; and determining (S311) whether to instruct the terminal device to handover to the neighbor base station based on a response message (S309) from the neighbor base station in response to the notification message, wherein the response message indicates the second reception quality measured by the neighbor base station, wherein said second reception quality is higher than an increased second threshold. <EOS>