METHOD, BASE STATION AND TERMINAL FOR SECONDARY CELL UPLINK SYNCHRONIZATION

摘要

The present invention provides a method, a base station and a terminal for secondary cell uplink synchronization, wherein the method comprises: the base station receives a random access preamble sent by the terminal according to the uplink scheduling of the primary cell on the terminal-side in a secondary cell; the base station compares the receiving time of the random access preamble with a downlink scheduling of the primary cell on the base station-side; the base station creates a scheduling adjusting indication information according to the compare result,and then sends the scheduling adjusting indication information to the terminal, wherein the scheduling adjusting indication information is used to indicate the terminal to adjust the uplink scheduling of the secondary cell on the terminal-side to synchronize with the uplink scheduling of the primary cell on the base station-side. The present invention solves the technique problem that in the prior art, the uplink scheduling synchronization could not be implemented between the primary cell and the secondary cell. The present invention guarantees the normal communication between the base station and the terminal.