Patent ID: 8743980

Claim:
A method of designing a reference signal pattern for a network in a wireless communication system, the method comprising: transmitting a plurality of cell-specific reference signal (CRSs) in a subframe, the subframe comprising a plurality of resource elements that are divided in time across a plurality of subcarriers to form a plurality of orthogonal frequency division multiplexed (OFDM) symbols, each of the plurality of resource element occupying a predetermined amount of time on a respective one of the plurality of subcarriers; and transmitting a plurality of demodulation reference signal (DMRSs) in the subframe; wherein, a first set of the plurality of CRSs is allocated to a first set of the plurality resource elements on a first symbol and a second symbol over a third subcarrier, a sixth subcarrier, a ninth subcarrier and a twelfth subcarrier, and a first set of the plurality of DMRSs is allocated to a third set of the plurality resource elements on a sixth symbol and a seventh symbol over a first subcarrier, a second subcarrier, the sixth subcarrier, a seventh subcarrier, an eleventh subcarrier and the twelfth subcarrier.