Patent ID: 9204431
Filing Date: 2015-12-01
Classification: H04B,H04L,H04W

Abstract:
1. A method for performing an uplink transmission of a communication apparatus in a wireless communication system, the method comprising: receiving control information from a base station by high layer signaling; generating a sounding reference signal (SRS) for the uplink transmission; and transmitting the SRS using a subframe #n, wherein the SRS is transmitted on a symbol located last on a time axis in the subframe #n, wherein if the subframe #n and a subframe #(n+1) are subframes for different links, respectively, the SRS is not transmitted in a last symbol of the subframe #n, wherein if the subframe #n and the subframe #(n+1) are subframes for a same link, the SRS is transmitted using the last symbol of the subframe #n when the subframe #n is a subframe configured as a relay node (RN)-specific SRS subframe, wherein if the subframe #n and the subframe #(n+1) are subframes for the same link, the SRS is not transmitted in a last symbol of the subframe #n when the subframe #n is a subframe configured as a cell-specific SRS subframe, and wherein the control information includes information on whether the last symbol of the subframe #n is used for transmission of the signal.