| 发明名称 |
METHOD AND DEVICE FOR SIGNALING CONTROL INFORMATION IN CARRIER AGGREGATION SYSTEM |
| 摘要 |
A method, a user equipment, and a base station for maintaining uplink synchronization in a wireless communication system supporting carrier aggregation are discussed. The method of maintaining uplink synchronization at a user equipment according to an embodiment includes receiving a physical downlink control channel (PDCCH) order. The PDCCH order indicates an initiation of a random access procedure and includes a carrier indicator field and a predefined set of values of a 1-bit flag indicating a localized/distributed resource block assignment, and a resource block assignment field. The method further includes transmitting a random access preamble through an uplink component carrier corresponding to a value of the carrier indicator field among a plurality of uplink component carriers. |
| 申请公布号 |
US2017064677(A1) |
申请公布日期 |
2017.03.02 |
| 申请号 |
US201615347367 |
申请日期 |
2016.11.09 |
| 申请人 |
LG ELECTRONICS INC. |
发明人 |
YANG Suck Chel;KIM Min Gyu;AHN Joon Kui;SEO Dong Youn |
| 分类号 |
H04W72/04;H04W56/00;H04W74/08 |
主分类号 |
H04W72/04 |
| 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:
receiving a physical downlink control channel (PDCCH) order, wherein the PDCCH order indicates an initiation of a random access procedure and includes a carrier indicator field and a predefined set of values of:
a 1-bit flag indicating a localized/distributed resource block assignment, anda resource block assignment field; and transmitting a random access preamble through an uplink component carrier corresponding to a value of the carrier indicator field among a plurality of uplink component carriers. |
| 地址 |
Seoul KR |
