Method of Managing Timing Alignment Functionality for Multiple Component Carriers and Related Communication Device

摘要

A method of managing TA functionality for a communication device of a wireless communication system which supports carrier aggregation that multiple component carriers are aggregated to support wider transmission bandwidth is disclosed. The method comprises receiving a RRC message indicating a usage of a timing advance command for each of a plurality of component carriers configured to the communication device, from a cell in a network of the wireless communication system, when the timing advance command has been received from the cell for each of the plurality of component carriers, applying the timing advance functionality corresponding to each of the plurality of component carriers, for updating a timing advance value for each of the plurality of component carriers, and when updating the timing advance value for each of the plurality of component carriers, starting or restarting a time alignment timer for each of the plurality of component carriers.

主权项

1. A method of managing timing alignment, TA, functionality for a communication device of a wireless communication system which supports carrier aggregation that multiple component carriers are aggregated to support wider transmission bandwidth, the method comprising:
receiving a radio resource control, RRC, message indicating a usage of a timing advance command for each of a plurality of component carriers configured to the communication device, from a cell in a network of the wireless communication system; when the timing advance command has been received from the cell in the network for each of the plurality of component carriers, applying the timing advance functionality corresponding to each of the plurality of component carriers, for updating a timing advance value for each of the plurality of component carriers; and when updating the timing advance value for each of the plurality of component carriers, starting or restarting a time alignment timer for each of the plurality of component carriers.