With reference to FIG. 1, near the second area E, before S103 in which the UE receives the active set update signaling sent by the RNC, the method further includes that the UE measures common pilot channel quality of each cell; and when the UE is in a non-soft handover area, that is, when the UE moves from an area close to the micro base station to area E, and when the UE measures that the common pilot channel quality of the macro base station is greater than the preset third threshold value and less than the second condition threshold value for addition to the second active set, the UE sends a third measurement report to the RNC, so that the RNC sends the active set update signaling to the UE according to the third measurement report, which is that the UE sends the third measurement report to the micro base station, and then the micro base station forwards the third measurement report to the RNC; or when the UE is in a soft handover area corresponding to the second active set, that is, when the UE moves from area D to area E, and when the UE measures that the common pilot channel quality of the macro base station is less than a fourth condition threshold value for removal of the macro base station from the second active set and greater than a preset fourth threshold value, the UE sends a third measurement report to the RNC, which is that the UE sends the third measurement report to the macro base station or the micro base station, and then the macro base station or the micro base station forwards the third measurement report to the RNC, so that the RNC sends the active set update signaling to the UE according to the third measurement report.
Here, it should be noted that the third threshold value and the fourth threshold value may be equal.
