Patent ID: 8644865

Claim:
A method for supporting an interference measurement related to neighboring cells, the method performed by a base station and comprising: allocating one or more reference signals to one or more first resource elements in a subframe; allocating one or more null signals to one or more second resource elements in the subframe; transmitting the one or more reference signals using the one or more first resource elements; and transmitting the one or more null signals using the one or more second resource elements, wherein an interference of the neighboring cells is measured using the one or more second resource elements, wherein the one or more second resource elements correspond to resource elements to which reference signals of at least one of the neighboring cells are allocated, wherein the one or more null signals are only allocated to a region of the subframe other than a control channel region, and wherein the control channel region is configured up to three OFDM (Orthogonal Frequency Division Multiplexing) symbols from a first OFDM symbol of the subframe.