Patent ID: 8401094

Claim:
A wireless communication method of detecting data in resource blocks (RBs), the method comprising: receiving a plurality of RBs, each RB comprising a plurality of resource elements (REs), wherein the plurality of resource elements comprise at least one common reference signal (CRS) for a plurality of wireless transmit/receive units (WTRUs), at least one dedicated reference signal (DRS) specific to a single WTRU, and at least one data symbol; determining which of the REs include the at least one CRS; determining which of the REs include the at least one DRS based on a DRS mode indicator signaled by way of at least one control-type data symbol, wherein the DRS mode indicator indicates any of first and second DRS modes, wherein the first DRS mode indicates the at least one DRS comprises a respective at least one single beamformed or precoded pilot, and wherein the second DRS mode indicates the at least one DRS comprises a respective at least one composite beamformed or precoded pilot; estimating an effective channel response; and detecting data in the at least one data symbol based on the effective channel estimate response.