Method and apparatus for forwarding non-consecutive data blocks in enhanced uplink transmissions

摘要

A method and apparatus for forwarding non-consecutive data blocks in enhanced uplink (EU) transmissions. A wireless transmit/receive unit (WTRU) and one or more Node-Bs include one or more automatic repeat request (ARQ)/hybrid-ARQ (H-ARQ) processes for supporting an enhanced dedicated channel (E-DCH). Data blocks transmitted by the WTRU are re-ordered in a re-ordering entity located in the Node-B(s) or a radio network controller (RNC). Once a missing data block is identified, a data forwarding timer in the Node-B(s) or RNC is initiated and subsequent WTRU transmissions are monitored to determine whether the missing data block has been discarded by the WTRU. Upon recognition of the discard of the missing data block, the non-consecutive data blocks are forwarded to higher layers.

主权项

1. An apparatus comprising:
a receiver configured to receive enhanced uplink (EU) data signals from a wireless transmit/receive unit (WTRU) and to recover EU data blocks therefrom using at least one uplink hybrid automatic repeat request (H-ARQ) entity; a transmitter configured to send positive acknowledgements or negative acknowledgements from the uplink H-ARQ entity over a downlink signaling channel to the WTRU in response to the recovered EU data blocks; and an EU data re-ordering entity configured to:
store the recovered EU data blocks in at least one EU data re-ordering buffer;start a timer in response to identifying that an EU data block is missing based on at least one sequence number of the stored EU data blocks; anddeliver at least one EU data block to a higher layer upon a condition that the timer has expired and the missing EU data block has not been recovered from the received EU data signals.