METHOD AND APPARATUS FOR SETTING HAPPY BIT ON E-DCH DEDICATED PHYSICAL CONTROL CHANNEL

摘要

PROBLEM TO BE SOLVED: To provide a method and a wireless transmit/receive unit (WTRU) for setting a happy bit on an E-DPCCH.SOLUTION: There is provided a step for setting a happy bit to "unhappy" on a condition that a predetermined criteria are met. When MAC-i/is is configured, the criteria includes the step of determining whether a WTRU has enough power available to transmit at a higher data rate. The determination as to whether a WTRU has enough power available to transmit at a higher data rate includes identifying an E-TFC that has a transport block size x bits larger than a transport block size of a currently selected E-TFC for transmission in a same transmission time interval (TTI) as the happy bit, and determining whether the identified E-TFC is supported on the basis of a same power offset as the currently selected E-TFC.