via the e dch 108 during a current tti step 202 in step 204 the wtru 102 waits for feedback from the node b 104 if the wtru 102 receives an ack message from the node b 104 the wtru 102 then sets the transmission status to u201c successful transmission u201d releases the h arq process and reinitiates the retransmission counter 116 step 208 for subsequent data transmissions if at step 206 the wtru 102 receives a nack message or did not receive any response the wtru 102 determines whether the retransmission count indicated by the retransmission counter 116 is less than or equal to the maximum number of allowed retransmissions step 212 if the retransmission count as determined at step 212 is less than the maximum number of allowed retransmissions the wtru 102 sets or maintains the transmission status to u201c retransmission u201d and increments the retransmission counter 116 step 214 the retransmission counter 116 is incremented each time the same data is retransmitted by the wtru 102 if the retransmission count as determined at step 212 is equal to or greater than the maximum number of allowed retransmissions the h arq process transmission is terminated and reset for supporting subsequent data transmissions step 213 optionally the wtru 102 may set the transmission status to u201c restarted transmission u201d and reinitiates the retransmission counter step 216 after setting the transmission status to u201c restarted transmission u201d the wtru 102 reinitiates the h arq transmission process as a u201c new transmission u201d or the.