Patent ID: 9226280
Filing Date: 2015-12-29
Classification: H04L,H04W

Abstract:
1. A method for transmitting, by a user equipment (UE), an aperiodic sounding reference signal (SRS) in a wireless communication system, the method comprising: receiving, via a physical downlink control channel (PDCCH), downlink control information (DCI) including an SRS request for triggering transmission of an aperiodic SRS; detecting the SRS request; if a carrier indicator field (CIF) is configured, transmitting the aperiodic SRS on a uplink (UL) component carrier (CC), among a plurality of UL CCs, corresponding to the CIF; and if a CIF is not configured, transmitting the aperiodic SRS on a UL CC, among the plurality of UL CCs, in which a physical uplink shared channel (PUSCH) is scheduled by the DCI.