Method and apparatus of operating multiple time alignment timers in mobile communication system supporting carrier aggregation
作者： Kyeong In Jeong , Jae Hyuk Jang
DOI:
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摘要: A method of operating multiple time alignment timers (TimeAlignmentTimer) is provided for facilitating communication between and evolved Node B (eNB) a User Equipment (UE) in Long Term Evolution (LTE) system supporting carriers. The includes starting first TAT group including the primary cell, second when Timing Advance (TA) information on not cell; determining transmission at least one Hybrid Automatic Repeat Request Acknowledgement/Negative-acknowledgement (HARQ ACK/NACK), physical uplink control channel, sounding reference signal according to start an expiration TATs.
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