Uplink power control for distributed wireless communication

A wireless transmit receive unit (WTRU), the WTRU comprising:

• a processor operatively coupled to a transceiver, the processor and transceiver configured to receive a control message, the control message including a transmit power command (TPC) and an indication of a first multi-antenna configuration of a plurality of multi-antenna configurations for sending an uplink channel transmission;
• the processor and transceiver configured to determine a first power control loop, of a plurality of power control loops, for each of a plurality of multi-antenna configurations;
• and
• the processor and transceiver configured to send the uplink channel transmission at an uplink transmission power level of the first power control loop wherein timing information is associated with the uplink transmission power level, and
• wherein the uplink transmission power level is further derived from a pathloss estimate determined for the uplink channel transmission using the first multi-antenna configuration.