Method and apparatus for dynamically allocating harq processes in the uplink

A method for use in a wireless transmit/receive unit (WTRU) comprising:

• the WTRU receiving signaling;
• the WTRU transmitting uplink data sequentially using a first integer number of hybrid automatic repeat request (HARQ) processes during normal HARQ operation;
• and
• the WTRU transmitting uplink data using a second integer number of HARQ processes that is less than the first number of HARQ processes in response to receiving the signaling.

A base station comprising:

• a transmit unit configured to transmit signaling;
• and
• a receive unit configured to:
• receive uplink data sequentially using a first integer number of hybrid automatic repeat request (HARQ) processes during normal HARQ operation, and
• receive uplink data using a second integer number of HARQ processes that is less than the first number of HARQ processes in response to the signaling.

A method for use in a base station, the method comprising:

• the base station transmitting signaling;
• the base station receiving uplink data sequentially using a first integer number of hybrid automatic repeat request (HARQ) processes during normal HARQ operation;
• and
• the base station receiving uplink data using a second integer number of HARQ processes that is less than the first number of HARQ processes in response to the signaling.