Method and apparatus for dynamically adjusting data transmission parameters and controlling H-ARQ processes

A method of dynamically adjusting data transmission parameters for transmission of enhanced dedicated channel (E-DCH) data, the method comprising:

• queuing E-DCH data in a buffer;
• selecting E-DCH data from the buffer available for transmission;
• determining whether or not the selected E-DCH data was previously transmitted;
• if it is determined that the selected E-DCH data was not previously transmitted selecting a transport block set (TBS) size within an allowed limit;
• assigning a hybrid automatic repeat request (H-ARQ) process;
• generating at least one enhanced uplink medium access control (MAC-e) protocol data unit (PDU);
• and
• initiating an enhanced uplink transmission which identifies the H-ARQ process and the TBS size.

A method of dynamically adjusting data transmission parameters for transmission of enhanced dedicated channel (E-DCH) data, the method comprising:

• queuing E-DCH data in a buffer;
• selecting E-DCH data for transmission;
• determining whether or not the selected E-DCH data is new data;
• and
• if the data is new data,
• selecting a data transmission parameter within an allowed limit;
• assigning a hybrid automatic repeat request (H-ARQ) process for transmission of the data;
• transmitting the data identifying the data transmission parameter;
• and
• initializing a transmission count.

A wireless transmit/receive unit (WTRU) for dynamically adjusting data transmission parameters for transmission of enhanced dedicated channel (E-DCH) data, the WTRU comprising:

• a buffer for queuing E-DCH data;
• a retransmission counter for tracking number of transmissions of same data block;
• a transmitter and a receiver for transmitting and receiving the E-DCH data;
• and
• a controller for selecting data and transmission parameters for transmission of the E-DCH data and assigning a hybrid automatic repeat request (H-ARQ) process for transmission of the data,
• whereby if the data is new data the controller selects a data transmission parameter within an allowed limit and initializes a retransmission count.