ＤＬ及びＵＬ基準信号を用いたチャンネル状態情報（ＣＳＩ）獲得方法及び装置

Title:

ＤＬ及びＵＬ基準信号を用いたチャンネル状態情報（ＣＳＩ）獲得方法及び装置

Document Type and Number:

Japanese Patent JP7118089

Kind Code:

B2

Abstract:

A user equipment, UE (116), in a wireless communication system, comprises a transceiver (310) and a processor (340) configured to receive, from the base station (101, 102, 103), configuration information on a non-zero power channel state information reference signal, CSI-RS, resource corresponding to a sounding reference signal, SRS, receive, from the base station (101, 102, 103), downlink control information including aperiodic SRS trigger information in case that the SRS corresponds to an aperiodic SRS, receive, from the base station, a non-zero power CSI-RS corresponding to the non-zero power CSI-RS resource, wherein the non-zero power CSI-RS resource is identified based on the aperiodic SRS trigger information, identify an uplink precoder for the SRS based on the received non-zero power CSI-RS, and transmit, to the base station, the SRS. In case that the non-zero power CSI-RS is an aperiodic CSI-RS, the downlink control information and CSI-RS are in a same slot.

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Inventors:

Eco Onggo Sanus

Application Number:

JP2019553900A

Publication Date:

August 15, 2022

Filing Date:

March 23, 2018

Export Citation:

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Assignee:

Samsung Electronics Company Limited

International Classes:

H04B7/06; H04B7/0456; H04L27/26; H04W16/28; H04W24/10; H04W72/04

Domestic Patent References:

JP2016515350A

Foreign References:

WO2017026762A1
WO2016031683A1
CN103873124A

Other References:

LG Electronics,Discussion on non-codebook based transmission for UL[online],3GPP TSG RAN WG1 Meeting#88bis R1-1704874,Internet,2017年03月25日
Samsung,CSI acquisition for reciprocity-based operation[online],3GPP TSG RAN WG1 88 R1-1702951,Internet,2017年02月06日
NTT DOCOMO, INC.,Views on contents of group-common PDCCH[online],3GPP TSG RAN WG1 Meeting #88bis R1-1705734,Internet,2017年03月25日
ZTE, ZTE Microelectronics,UL beam management[online],3GPP TSG RAN WG1 Meeting #88bis R1-1704399,Internet,2017年03月25日

Attorney, Agent or Firm:

Tatsuhiko Abe
Shinya Mihiro
Choe Yun
Keiji Kiuchi

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