Patent ID: 9622226
Date: 2017-04-11
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method for transmitting, by a user equipment (UE), uplink data in a wireless communication system, the method comprising: mapping uplink data to resource elements corresponding to a physical uplink shared channel (PUSCH) in a UE-specific aperiodic sounding reference signal (SRS) subframe, wherein the UE-specific aperiodic SRS subframe includes a single carrier frequency division multiple access (SC-FDMA) symbol reserved for an aperiodic SRS, wherein the aperiodic SRS is selectively transmitted in the reserved SC-FDMA symbol, and the aperiodic SRS is transmitted in the reserved SC-FDMA symbol when triggered by a base station, and wherein the uplink data is mapped to SC-FDMA symbols other than the SC-FDMA symbol reserved for the aperiodic SRS in the UE-specific aperiodic SRS subframe in a case when the aperiodic SRS is not transmitted in the reserved SC-FDMA symbol; and transmitting the mapped uplink data to the base station via the UE-specific aperiodic SRS subframe.