METHOD AND DEVICE FOR CONTROLLING UPLINK TRANSMIT POWER IN WIRELESS ACCESS SYSTEM

摘要

The present invention discloses a method and device for controlling uplink transmit power of a terminal in a wireless access system that supports carrier aggregation/multiple cells. In particular, the method may include receiving a first TA value and a second TA value for a first timing advance group (TAG) including one or more component carriers and a second TAG including one or more component carriers, adjusting uplink transmission timing of the first TAG and the second TAG by using the first TA value and the second TA value, resetting a transient period between a first group of component carriers and a second group of component carriers exceeds a power control requirement, and controlling uplink transmit power according to the reset transient period.

主权项

1. A method of controlling uplink transmit power of a user equipment in a wireless access system supporting carrier aggregation, the method comprising:
receiving a first TA value and a second TA value for a first TAG (timing advance group) containing one or more component carriers and a second TAG containing one or more component carriers, respectively; adjusting uplink transmission timing of the first TAG and uplink transmission timing of the second TAG using the first TA value and the second TA value; if maximum transmit power of the user equipment exceeds a power control requirement in a region in which subframes different from each other are overlapped except a transient period of a first component carrier group and a second component carrier group, reconfiguring the transient period; and controlling the uplink transmit power according to the reconfigured transient period.