A method and user equipment configured for discontinuous transmission, DTX, of sounding reference signals, SRSs, the user equipment served by a base station in a wireless network are disclosed. In some embodiments, a method includes, when operating in a first mode of operation, the method includes comparing a change in channel conditions to a channel condition threshold and transmitting an SRS only if the change in channel conditions exceeds the channel condition threshold. When operating in a second mode of operation, the method includes determining a content of an uplink data buffer and transmitting an SRS only if the uplink data buffer is not empty.