Patent ID: 8400934

Claim:
A method to determine a measurement action associated with a CELL_FACH state by a wireless transmit/receive unit (WTRU), the method comprising: determining whether DRX operation is configured or not configured; determining whether an E-DCH resource is used or unused; determining whether DRX is enabled or disabled; performing at least one of an inter-frequency measurement and an inter-RAT measurement in a DRX period when it is determined that DRX operation is configured and DRX is enabled; performing at least one of the inter-frequency measurement and the inter-RAT measurement during a FACH measurement occasion when it is determined that DRX operation is not configured and the E-DCH resource is unused; and disregarding the FACH measurement occasion when it is determined that DRX operation is not configured and the E-DCH resource is used.