Wireless communication method and apparatus for transferring buffered enhanced uplink data from a mobile station to a Node-B

A method for transferring enhanced uplink (EU) data implemented by a wireless transmit/receive unit (WTRU), comprising:nstoring EU data in a buffer of the WTRU, wherein the EU data is associated with a plurality of data flows, wherein the plurality of data flows are associated with a plurality of priority classes;transmitting an EU data transmission request message over an EU channel including an indication of an amount of EU data stored in the buffer and an indication of an amount of EU data stored in the buffer associated with one of the plurality of data flows;receiving an EU data scheduling message;determining, based on the EU data scheduling message, whether granted resources allow for the amount of EU data stored in the buffer to be transmitted;on a condition that the granted resources do not allow for the amount of EU data stored in the buffer to be transmitted, transmitting a portion of the EU data stored in the buffer and on a condition that the granted resources allow for the amount of EU data stored in the buffer to be transmitted, transmitting the EU data stored in the buffer; andtransmitting an indication indicating whether the granted resources allow the amount of EU data stored in the buffer to be transmitted.

A wireless transmit/receive unit (WTRU) comprising:na buffer configured to store enhanced uplink (EU) data, wherein the EU data is associated with a plurality of data flows, wherein the plurality of data flows are associated with a plurality of priority classes;a transmitter configured to transmit an EU data transmission request message over an EU channel including an indication of an amount of EU data stored in the buffer and an indication of an amount of EU data stored in the buffer associated with one of the plurality of data flows;a receiver configured to receive an EU data scheduling message;a processor configured to determine, based on the EU data scheduling message, whether granted resources allow for the amount of EU data stored in the buffer to be transmitted;the transmitter configured to transmit a portion of the EU data stored in the buffer on a condition that the granted resources do not allow for the amount of EU data stored in the buffer to be transmitted, and the transmitter configured to transmit the EU data stored in the buffer on a condition that the granted resources allow for the amount of EU data stored in the buffer to be transmitted; andthe transmitter configured to transmit an indication indicating whether the granted resources allow the amount of EU data stored in the buffer to be transmitted.