Patent ID: 8976668
Filing Date: 2015-03-10
Classification: H04L,H04W

Abstract:
1. A method for optimizing a user plan operation in a user equipment of a wireless communication system based on carrier aggregation, wherein the method comprises: receiving a downlink carrier component removal signaling from a base station, wherein the downlink carrier component removal signaling is used to indicate a removed downlink carrier component; according to the downlink carrier component removal signaling, stopping pending Hybrid Automatic Repeat Request (HARQ) procedures of the removed downlink carrier component and flushing the HARQ receiving buffer related to the removed downlink carrier component and/or stopping a re-ordering procedure and/or generating a status report and sending the status report to the base station, wherein the status report is used to indicate the base station to perform retransmission and inform the base station of the data needed to be retransmitted.