Patent ID: 8934346
Filing Date: 2015-01-13
Classification: H04W

Abstract:
1. A cellular station for handling random access procedures in a multi-carrier system, comprising: a wireless module, performing wireless transceiving to and from a mobile communication device on a first SCell and a second SCell of a timing reference group; and a controller module, waiting for a predetermined period of time subsequent to an expiry of a deactivation timer for the first SCell maintained in the cellular station, and transmitting, to the mobile communication device via the wireless module, a PDCCH order for initiating a random access procedure on the second SCell or an activation command for activating the first SCell, in response to the predetermined period of time being elapsed, wherein the waiting for the predetermined period of time ensures that another deactivation timer for the first SCell maintained in the mobile communication device has expired and wherein the expiry of another deactivation timer for the first SCell maintained in the mobile communication device further ensures that the PDCCH order is not transmitted during an ongoing random access procedure on the first SCell.