Lee, Hong, Degerman, Kang & Waimey
Apparatus and method of preventing component carrier failure propagation
Disclosed is a mobile communications system employing a plentitude of component carriers and carrier aggregation between a user equipment (UE) and a base station. When failure of any downlink component carrier (DL CC) or uplink component carrier (UL CC) has been detected, the UE transmits UL control signal (e.g., UL HARQ ACK/NACK) to the base station, by re-selecting a CC for UL transmission (e.g., activation of a control channel of a UL CC relating to the DL CC). This may prevent DL CC failure from influencing on a UL CC.
LG Electronics Inc.
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Sunghoon Seungjune Sungjun Youngdae Sungduck
Jung Yi Park Lee Chun