Method for transmitting an SRS-triggering-based SRS in a wireless communication system

摘要

The present invention relates to a method and terminal apparatus which involve transmitting a sounding reference signal (SRS)-triggering-based SRS in a wireless communication system. The terminal apparatus of the present invention comprises a receiver which receives, from a base station, an SRS-triggering indicator for triggering an SRS transmission; and a transmitter which transmits the SRS via a preconfigured uplink subframe in accordance with the SRS-triggering indicator.

主权项

1. A method for transmitting an aperiodic Sounding Reference Signal (SRS) by a user equipment in a wireless communication system, the method comprising:
receiving, from a base station, a downlink control information (DCI) format through a first component carrier of a plurality of component carriers configured for the user equipment, the DCI format including:
an indicator indicating an index of an activated component carrier of the plurality of component carriers for an aperiodic SRS transmission, the index of the activated component carrier being different from an index of the first component carrier, anda multi-bits SRS request including:
an indicator for triggering the aperiodic SRS transmission, andaperiodic SRS configuration information to be used for the aperiodic SRS transmission on the activated component carrier, and transmitting, to the base station, the aperiodic SRS through the activated component carrier based on:
the indicator indicating the index of the activated component carrier, andthe multi-bits SRS request.