Method and system of WCDMA coverage based handover triggering

A trigger (WCDMA carrier or AN carrier and IF or a method of also comprises a switch and a holding. Six trigger that are provided with through the starting switch measurement and vibrates to the searching for exchanging network connectivity. they are: a mobile) unit (15), digital 9) power exceeds the time of threshold value; b) connected base station (70) downlink power supply exceeds the time of threshold value; c) mobile device (15) is power in the maximum value special value of times; d) during base station (70) SIR exceeds threshold value; and timee) mobile terminal (15) power exceeds threshold value and power control marked points lower indication's sudden to increase maximum power; And f) is lower than the threshold value exceeds the surface of the navigational power of mobile device (15) measurement.