Methods of Discovery and Measurements for Small Cells in OFDM/OFDMA Systems

A User Equipment (UE), comprising:

• a receiver that receives configuration information of discovery reference signals (DRS) that include at least one of a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a primary synchronization signal (PSS) and a secondary synchronization signal (SSS), wherein the configuration information indicates a transmission periodicity and a transmission time length of the DRS over a set of resource elements (REs) in multiple time-domain OFDM symbols, wherein the configuration information also indicates whether RE muting is applied in a first set of OFDM symbols within the transmission time length and RE muting is not applied in a second set of OFDM symbols within the transmission time length when the DRS includes the CSI-RS;
• and
• a measurement module that performs measurement of a first metric using the second set of OFDM symbols within the transmission time length based on the configuration information.