Patent ID: 9642082
Date: 2017-05-02
CPC Classifications: H04W,Y02D

Claim:
1. A method of transmitting, by a first base station, a coverage compensation request message, to determine switching to an idle state in a wireless communication system, the method comprising: transmitting, by the first base station, an idle state switching request message for requesting switching to the idle state to a second base station in a compensation group to which the first base station belongs, transmitting, by the first base station, a first coverage compensation request message to a first compensation base station pre-linked to the first base station in the compensation group, wherein the second base station transmits a second coverage compensation request message to a second compensation base station pre-linked to the second base station within the compensation group based on the idle state switching request message, receiving, by the first base station, a first coverage compensation response message from the first compensation base station, receiving, by the first base station, an idle state switching response message from the second base station, wherein the idle state switching response message includes information of coverage compensation in a second coverage compensation response message received by the second base station from the second compensation base station as a response to the second coverage compensation request message, and determining whether the first base station and the second base station in the compensation group are to switch to the idle state based on the first coverage compensation response message and the idle state switching response message, wherein an idle state switching indication message indicating switching to the idle state is transmitted to the second base station by the first base station based on the determination on whether or not to switch to the idle state.