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1. (WO2018203201) DISCONTINUED TRANSMISSION OF UPLINK SOUNDING REFERENCE SIGNALS

Pub. No.:    WO/2018/203201    International Application No.:    PCT/IB2018/052950
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sat Apr 28 01:59:59 CEST 2018
IPC: H04L 25/02
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: REN, Hong
GAO, Shiwei
Title: DISCONTINUED TRANSMISSION OF UPLINK SOUNDING REFERENCE SIGNALS
Abstract:
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.