METHOD AND APPARATUS FOR FORWARDING NON-CONSECUTIVE DATA BLOCKS IN ENHANCED UPLINK TRANSMISSIONS

摘要

PROBLEM TO BE SOLVED: To solve the problem of the conventional wireless communication systems in which the timer mechanism results in increased and potentially unacceptable latency in performing RLC retransmission procedures since transmission errors are unavoidable.SOLUTION: There is disclosed a method and apparatus for forwarding non-consecutive data blocks in enhanced uplink transmissions. A wireless transmit/receive unit and one or more Node-Bs include one or more automatic repeat request/hybrid-ARQ processes for supporting an 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. Once a missing data block is identified, a data forwarding timer in the Node-B(s) or RNC is initiated. 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.