ELECTRONIC DEVICE FOR PERFORMING PRECODING AND METHOD FOR OPERATING THE SAME

WIPO Patent Application WO/2020/262809

A1

An electronic device is provided. The electronic device includes a RFIC to convert data transmitted from the a communication processor into a RF signal and output the RF signal, and an antenna configured to receive the RF signal and radiate an electromagnetic field, the communication processor is configured to receive, from a BS, a reference signal for identifying a state of a downlink channel between the electronic device and the BS through the antenna and the RFIC, based on the reference signal and association information between the downlink channel and an uplink channel and between the electronic device and the BS, identify the uplink channel, based on the identified uplink channel, identify a precoder for the uplink channel, based on the identified precoder, precode uplink data and a DMRS, and transmit a signal based on the precoded data to the BS using at least some of the RFIC and the antenna.

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HAN YONGGUE (KR)
WANG HE (CN)
KIM TAEYOON (KR)
LIM CHAIMAN (KR)
YAN LIANG (CN)
LI RI (CN)

PCT/KR2020/004565

December 30, 2020

April 03, 2020

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SAMSUNG ELECTRONICS CO LTD (KR)

H04B7/0456; H04B7/0413; H04B17/309; H04L5/00; H04W72/12

US20120121031A1	2012-05-17
US20150063485A1	2015-03-05
US20180167183A1	2018-06-14

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NOKIA, NOKIA SHANGHAI BELL: "Non-codebook based UL-MIMO transmission", 3GPP DRAFT; R1-1716491, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Nagoya, Japan; 20170918 - 20170921, R1-1716491, 11 September 2017 (2017-09-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051329203
ZTE: "Maintenance for Multi-antenna scheme", 3GPP DRAFT; R1-1810212 MAINTENANCE FOR MULTI-ANTENNA SCHEME, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chengdu, China; 20181008 - 20181012, R1-1810212 Maintenance for Multi-antenna scheme, 29 September 2018 (2018-09-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051517628
SAMSUNG: "PRB bundling and precoding granularity in UL DMRS", 3GPP DRAFT
NOKIA ET AL.: "Uplink MIMO Transmission in NR", 3GPP DRAFT R1-1701079
CATT: "Discussion on non-codebook based transmission for UL", 3GPP DRAFT
See also references of EP 3956995A4

LEE, Keon-Joo et al. (KR)

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