Patent ID: 8406164

Claim:
A method for implementing hard handovers between access networks, comprising: the access network on a target side obtaining a loop round trip delay of a pilot of the access network on the target side; and the access network on the target side setting a center of a searching window of the pilot of the access network on the target side according to the obtained loop round trip delay of the pilot of the access network on the target side, so as to implement the hard handovers between the access network on a source side and the access network on the target side, wherein, the access network on the target side obtaining the loop round trip delay of the pilot of the access network on the target side comprises: the access network on the target side receives the loop round trip delay of the pilot of the access network on the target side from the access network on the source side; or the access network on the target side receives the loop round trip delay of the pilot of the access network on the source side from the access network on the source side, and calculates the loop round trip delay of the pilot of the access network on the target side according to the loop round trip delay of the pilot of the access network on the source side.