Method and apparatus for transmit power control for multiple antenna transmissions in the uplink

A method comprising:

• receiving, by a wireless transmit/receive unit (WTRU), configuration information from a cellular network;
• deriving, by the WTRU, a first HARQ offset value for single codeword transmission and a second hybrid automatic repeat request (HARQ) offset value for multiple codeword transmission from the received configuration information;
• receiving, by the WTRU, a signal from the cellular network;
• wherein the signal indicates whether the WTRU is to transmit a single codeword or multiple codewords;
• and
• in response to the signal and on a condition that HARQ information is to be sent, processing, by the WTRU, bits of a single codeword based on the first HARQ offset value or process bits of multiple codewords based on the second HARQ offset value.

A wireless network node comprising:

• circuitry configured to transmit configuration information to a wireless transmit/receive unit (WTRU);
• wherein based on the configuration information, the WTRU can derive a first hybrid automatic repeat request (HARQ) offset value for single codeword transmission and a second HARQ offset value for multiple codeword transmission;
• the circuitry is further configured to transmit a signal to the WTRU;
• wherein the signal indicates whether the WTRU is to transmit a single codeword or multiple codewords;
• and
• the circuitry is further configured in response to the signal and on a condition that HARQ information is received, to receive a signal from the WTRU having bits processed for a single codeword based on the first HARQ offset value or bits processed for multiple codewords based on the second HARQ offset value.