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Title:
LOW PEAK-TO-AVERAGE POWER RATIO PRECODED REFERENCE SIGNAL DESIGN FOR MULTIPLE-INPUT, MULTIPLE-OUTPUT TRANSMISSIONS
Document Type and Number:
WIPO Patent Application WO/2018/141282
Kind Code:
A1
Abstract:
Methods, systems, and devices for wireless communication are described that support a low peak-to-average power ratio (PAPR) precoded reference signal design for multiple-input, multiple-output (MIMO) transmissions. A user equipment (UE) may identify multiple sets of symbols associated with different reference signal waveforms, where each reference signal waveform may be associated with a low PAPR. In some cases, different single-carrier reference signal waveforms may be mapped to subsets of frequency resources through frequency division multiplexing (FDM) for a transmission on a single antenna. However, the addition of single-carrier waveforms through FDM for a transmission via an antenna may result in an uplink transmission having a high PAPR (e.g., as compared to single-carrier waveforms). The UE may reduce the PAPR of the uplink transmission by multiplexing the reference signal waveforms in the time domain (e.g., using time division multiplexing (TDM)).

Inventors:
PARK SE YONG (US)
ZENG WEI (US)
MANOLAKOS ALEXANDROS (US)
AKKARAKARAN SONY (US)
HUANG YI (US)
WANG RENQIU (US)
XU HAO (US)
ZHANG YU (US)
SORIAGA JOSEPH BINAMIRA (US)
JI TINGFANG (US)
GAAL PETER (US)
Application Number:
PCT/CN2018/075242
Publication Date:
August 09, 2018
Filing Date:
February 05, 2018
Export Citation:
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Assignee:
QUALCOMM INC (US)
PARK SE YONG (US)
ZENG WEI (US)
MANOLAKOS ALEXANDROS (US)
AKKARAKARAN SONY (US)
HUANG YI (US)
WANG RENQIU (US)
XU HAO (CN)
ZHANG YU (CN)
SORIAGA JOSEPH BINAMIRA (US)
JI TINGFANG (US)
GAAL PETER (US)
International Classes:
H04W72/04
Domestic Patent References:
WO2010131229A12010-11-18
WO2013023674A12013-02-21
Foreign References:
US20100232311A12010-09-16
Other References:
See also references of EP 3577980A4
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LIMITED (CN)
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