WTRU-Centric Transmission is disclosed. A WTRU may communicate using a set of WTRU-specific cell IDs (WCIDs). A WTRU may be configured with a WCID and/or set of WCIDs, for example, by a serving cell and/or eNB and/or by autonomous selection. A WTRU may be configured with and/or may use one or more WCIDs, for example, based on a resource, channel, subband, time, subframe, signal type, transmission type, function (e.g. sequence generation), service type, etc. A WTRU may indicate its presence by transmitting a WTRU presence indicator, e.g., to enable a network to send appropriate transmissions using one or more WTRU WCIDs. Resources for measurements and/or reporting, e.g., for channel state information (CSI) processes, may be dynamically controlled. A WTRU may be dynamically reconfigured (e.g. without radio resource control (RRC) transmissions) to adapt WTRU-centric communication to changing sets of cooperating transmission points.