| 发明名称 |
METHOD AND DEVICE FOR TRANSMITTING ACK/NACK IN TDD-BASED WIRELESS COMMUNICATION SYSTEM |
| 摘要 |
A method is provided for transmitting an acknowledgement/negative-acknowledgement (ACK/NACK) in a wireless communication system based on Time Division Duplex (TDD) in which M downlink subframe(s) are associated with an uplink subframe, where M is equal to or greater than one (1). A user equipment, configured with a plurality of serving cells, receives at least one downlink transport block in the M downlink subframe(s), and determines an ACK/NACK response for the at least one downlink transport block by using one of a plurality of pre-defined mapping rules. Each of the plurality of pre-defined mapping rules is set to define a mapping relation between M ACK/NACK state(s) for each of the plurality of serving cells and the ACK/NACK response based on M. The user equipment transmits the ACK/NACK response. |
| 申请公布号 |
US2016218798(A1) |
申请公布日期 |
2016.07.28 |
| 申请号 |
US201615087582 |
申请日期 |
2016.03.31 |
| 申请人 |
LG ELECTRONICS INC. |
发明人 |
YANG Suck Chel;KIM Min Gyu;AHN Joon Kui;SEO Dong Youn |
| 分类号 |
H04B7/26;H04W72/14;H04L5/00;H04W72/04;H04L1/16;H04L1/18 |
主分类号 |
H04B7/26 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A method of transmitting an acknowledgement/negative-acknowledgement (ACK/NACK) in a wireless communication system based on Time Division Duplex (TDD) in which M downlink subframe(s) are associated with an uplink subframe, where M is equal to or greater than one (1), the method comprising:
receiving, by a user equipment configured with a plurality of serving cells, at least one downlink transport block in the M downlink subframe(s); determining, by the user equipment, an ACK/NACK response for the at least one downlink transport block by using one of a plurality of pre-defined mapping rules, wherein each of the plurality of pre-defined mapping rules is set to define a mapping relation between M ACK/NACK state(s) for each of the plurality of serving cells and the ACK/NACK response based on M, wherein when an uplink grant comprising a downlink assignment index (DAI) field indicating a pre-determined index value is received by the user equipment, M is replaced by the pre-determined index value for determining the ACK/NACK response for the at least one downlink transport block; and transmitting, by the user equipment, the ACK/NACK response. |
| 地址 |
Seoul KR |
