HANDLING CELL RESELECTION AND STATE TRANSITIONS FOR HIGH-SPEED DOWNLINK PACKET ACCESS

摘要

PROBLEM TO BE SOLVED: To provide a method for handling cell reselection and state transitions for high-speed downlink packet access.SOLUTION: A WTRU is configured to clear HSDPA resources when conditions to perform high speed downlink shared channel reception are not met. When in cell transition or state transition, the WTRU checks whether there is an ongoing HS-DSCH reception, and if the new cell or state cannot support HS-DSCH, then the HSDPA resources being used for the ongoing HS-DSCH reception are released. The WTRU uses radio resource control (RRC) processing to monitor various events and conditions, such as an RRC variable HS_DSCH_RECEPTION_GENERAL, and tracks HS-DSCH reception for all states to make the determination whether to release HSDPA resources.