Patent ID: 8743710

Claim:
A wireless transmit/receive unit (WTRU) comprising: at least one circuit configured to receive radio resource control (RRC) configuration information from a wireless network, wherein the RRC configuration information indicates for each medium access control for dedicated channel (MAC-d) flow, a limit of a number of hybrid automatic repeat request (HARQ) retransmissions for each MAC-d flow; wherein the at least one circuit is further configured to generate a medium access control for enhanced dedicated channel (MAC-e) protocol data unit (PDU), wherein the at least one circuit is further configured to transmit the MAC-e PDU using at least one of a plurality of synchronous HARQ processes, wherein each of the plurality of synchronous HARQ processes is configured to retransmit a MAC-e PDU that is not positively acknowledged on a condition that the limit of the number of HARQ retransmissions for a MAC-d flow of the MAC-e PDU is not reached, wherein the HARQ process that was used to previously transmit the MAC-e PDU is used to retransmit the MAC-e PDU; and wherein the at least one circuit is further configured to transmit with the MAC-e PDU an indication of a transport block size associated with the MAC-e PDU.