发明名称 |
METHOD AND APPARATUS OF OPERATING MULTIPLE TIME ALIGNMENT TIMERS IN MOBILE COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION |
摘要 |
A method of operating multiple time alignment timers (TimeAlignmentTimer) is provided for facilitating communication between and evolved Node B (eNB) and a User Equipment (UE) in a Long Term Evolution (LTE) system supporting multiple carriers. The method includes starting a first TAT of a first group including the primary cell, starting a second TAT when Timing Advance (TA) information on a second group not including the primary cell; and determining transmission of at least one of a Hybrid Automatic Repeat Request Acknowledgement/Negative-acknowledgement (HARQ ACK/NACK), a physical uplink control channel, and a sounding reference signal according to a start and an expiration of at least one of the first and second TATs. |
申请公布号 |
US2012257570(A1) |
申请公布日期 |
2012.10.11 |
申请号 |
US201213440216 |
申请日期 |
2012.04.05 |
申请人 |
JANG JAEHYUK;JEONG KYEONG IN;SAMSUNG ELECTRONICS CO. LTD. |
发明人 |
JANG JAEHYUK;JEONG KYEONG IN |
分类号 |
H04W4/00 |
主分类号 |
H04W4/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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