Patent ID: 9661516
Date: 2017-05-23
CPC Classifications: H04J,H04W

Claim:
1. A method for performing radio link monitoring by a user equipment (UE) in a wireless communication system, the method comprising: receiving predetermined power ratio information of a neighbor cell from a serving cell, wherein the predetermined power ratio information includes a ratio of a transmission power of a physical downlink control channel (PDCCH) of the neighbor cell to a transmission power of a cell-specific reference signal (CRS) of the neighbor cell; measuring a CRS of the serving cell; performing cancellation of the CRS of the neighbor cell from the CRS of the serving cell; calculating a signal-to-interference plus noise ratio (SINR) of the serving cell using the predetermined power ratio information and the CRS of the serving cell; and determining whether to declare a radio link failure (RLF) for the serving cell based on the SINR of the serving cell.