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1. (WO2018127157) TRANSMITTING METHOD AND RECEIVING METHOD FOR UPLINK SIGNAL, TERMINAL, AND BASE STATION

Pub. No.:    WO/2018/127157    International Application No.:    PCT/CN2018/071657
Publication Date: Fri Jul 13 01:59:59 CEST 2018 International Filing Date: Sat Jan 06 00:59:59 CET 2018
IPC: H04L 27/26
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: ZHAO, Zhao
赵兆
QIN, Long
秦龙
JI, Liuliu
纪刘榴
Title: TRANSMITTING METHOD AND RECEIVING METHOD FOR UPLINK SIGNAL, TERMINAL, AND BASE STATION
Abstract:
Disclosed are a transmitting method and a receiving method for an uplink signal, a terminal, and a base station, comprising: a terminal receives a downlink signal issued by a base station, a waveform used by the terminal is determined on the basis of the downlink signal, the terminal determines, on the basis of correlations between waveforms and power differences, a power difference corresponding to a target time-frequency resource, then determines, on the basis of the determined power difference, the uplink transmission power of an uplink signal mapped on the target time-frequency resource, and transmits the uplink signal at the power, where the target time-frequency resource refers to either an OFDM symbol multiplexed by an RS and a channel or an RE of a mapping channel in the OFDM symbol multiplex by the RS and the channel. The embodiment, by reducing the transmission power of the uplink signal on the target time-frequency resource, achieves a reduced OFDM symbol multiplexed by the RS and the channel, thus allowing a power-limited terminal to transmit data normally, and optimizing transmission power utilization of the power-limited terminal.