Patent ID: 9538437
Date: 2017-01-03
CPC Classifications: H04W

Claim:
1. A communication method for a first base station (BS) in a wireless communication system, the method comprising: establishing a radio link for communicating with a mobile station (MS); receiving BS information from at least one second BS that cooperates with the first BS to communicate with the MS in a cell, the cell including the first BS and the at least one second BS, the cell being controlled by the first BS; selecting an alternative BS from among the at least one second BS for switching the first BS to the alternative BS, based on the BS information; transmitting information about the alternative BS to the at least one second BS and the MS; and allocating a resource to be used for synchronization with the alternative BS to the MS; and receiving, from the alternative BS, second information representing a switch of the first BS, if the alternative BS transmitting the second information to the first BS after receiving first information requesting the switch of the first BS from the MS, wherein the first information is transmitted to the alternative BS by making the MS use the allocated resource, based on a state of the radio link between the first BS and the MS.