| 发明名称 |
METHOD AND DEVICE FOR SIGNALING CONTROL INFORMATION IN CARRIER AGGREGATION SYSTEM |
| 摘要 |
The present invention relates to a wireless communication system. More specially, the present invention relates to a method of maintaining uplink synchronization at a user equipment in a wireless communication system supporting carrier aggregation; configuring plural uplink component carriers, wherein each of the plural uplink component carriers has a respective uplink synchronization timing; receiving a downlink control information (DCI) through a physical downlink control channel of a specific downlink component carrier, wherein the DCI indicates an initiation of random access procedure and includes a carrier indicator field indicating one of the plurality of uplink component carriers; and transmitting a random access preamble through a uplink component carrier indicated by the carrier indicator field among the plural uplink component carriers. |
| 申请公布号 |
US2015071232(A1) |
申请公布日期 |
2015.03.12 |
| 申请号 |
US201414543525 |
申请日期 |
2014.11.17 |
| 申请人 |
LG ELECTRONICS INC. |
发明人 |
YANG Suck Chel;KIM Min Gyu;AHN Joon Kui;SEO Dong Youn |
| 分类号 |
H04W56/00;H04W72/04;H04W72/08 |
主分类号 |
H04W56/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of maintaining uplink synchronization at a user equipment in a wireless communication system supporting carrier aggregation, the method comprising:
configuring plural uplink component carriers, wherein each of the plural uplink component carriers has a respective uplink synchronization timing; receiving a downlink control information (DCI) through a physical downlink control channel of a specific downlink component carrier, wherein the DCI indicates an initiation of random access procedure and includes a carrier indicator field indicating one of the plurality of uplink component carriers; and transmitting a random access preamble through a uplink component carrier indicated by the carrier indicator field among the plural uplink component carriers. |
| 地址 |
Seoul KR |
