发明名称 |
METHOD FOR OPERATING TERMINAL IN CARRIER AGGREGATION SYSTEM, AND APPARATUS USING SAID METHOD |
摘要 |
Provided are a method for operating a terminal in a carrier aggregation system and an apparatus using said method. Downlink control information (DCI) including a downlink assignment index (DAI) is received via an enhanced physical downlink control channel (E-PDCCH). The DCI received via the E-PDCCH includes an additional field which does not exist in the DCI received via a physical downlink control channel (PDCCH). If the DAI value is larger than 1, the additional field is used in selecting one of a plurality of PUCCH resources set by the upper layer, and the one resource is used in transmitting ACK/NACK. |
申请公布号 |
US2015280883(A1) |
申请公布日期 |
2015.10.01 |
申请号 |
US201314440057 |
申请日期 |
2013.11.14 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
Seo Dongyoun;Kim Hakseong;Ahn Joonkui;Chae Hyukjin;Seo Hanbyul |
分类号 |
H04L5/00;H04W72/04 |
主分类号 |
H04L5/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method of operating a terminal in a carrier aggregation system, the method comprising:
receiving downlink control information (DCI) including a downlink assignment index (DAI) through an enhanced physical downlink control channel (E-PDCCH) of a first subframe; receiving data scheduled by the DCI through a physical downlink shared channel (PDSCH) of the first subframe; transmitting an acknowledgement (ACK)/not-acknowledgement (NACK) for the data through a physical uplink control channel (PUCCH) in a second subframe, wherein the DCI received in the E-PDCCH includes an additional field which is not present in DCI received in a physical downlink control channel (PDCCH), and wherein if the DAI value is greater than 1, the additional field is used to select a single resource among a plurality of PUCCH resources configured by a higher layer, and the single resource is used to transmit the ACK/NACK. |
地址 |
Seoul KR |