Supporting enhanced uplink transmission during soft handover

摘要

An enhanced uplink user equipment is in soft handover. A radio network controller selects a primary Node-B out of a plurality of Node-Bs supporting the soft handover. The radio network controller receiving successfully received enhanced uplink data packets from the plurality of Node-Bs. The radio network controller reordered the successfully received enhanced uplink data packets for in-sequence deliver. The primary Node-B sends specified scheduling information to the user equipment that the other Node-Bs does not transmit. At least the primary Node-B transmits acknowledgements and negative acknowledgements to the user equipment.

主权项

1. A method for communicating by a wireless transmit/receive unit (WTRU) during a handover, the method comprising:
transmitting, via a primary cell and at least one non-primary cell, enhanced uplink (EU) data from the WTRU to a Node-B; receiving scheduling information from the Node-B via the primary cell only; and receiving hybrid automatic repeat request (HARQ) acknowledgements (ACKs) from the Node-B via at least the primary cell and negative acknowledgements (NACKs) from the Node-B via the primary cell only.