BASE STATION DEVICE, TERMINAL DEVICE, AND COMMUNICATION METHOD

WIPO Patent Application WO/2020/138003

A1

Provided are a base station device, a terminal device, and a communication method that make efficient communication possible while suppressing increases in channel state information (CSI) when communicating using multiple antennas. The terminal device, which communicates with the base station device, comprises: a reception unit which receives a CSI report configuration and a CSI reference signal (CSI-RS); a CSI measurement unit which uses the CSI-RS to obtain CSI; and a transmission unit which transmits said CSI to the base station device. The CSI report configuration includes a codebook configuration that configures a type-1 codebook or a type-2 codebook, and when a type-2 codebook is configured by the codebook configuration, the CSI includes one among a type-1 CSI based on the type-1 codebook and a type-2 CSI based on the type-2 codebook.

YAMADA RYOTA
HAMAGUCHI YASUHIRO

PCT/JP2019/050423

July 02, 2020

December 23, 2019

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SHARP KK (JP)
FG INNOVATION CO LTD (CN)

H04W24/10; H04B7/0417; H04B7/0456; H04W16/28

"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 15", 3GPP TS 38.214 V15.3.0 (2018-09, 1 October 2018 (2018-10-01), Retrieved from the Internet [retrieved on 20200310]
LG ELECTRONICS: "Discussions on overhead reduction for Type II codebook [ online", 3GPP TSG RAN WG1 #95 R1-1813916, 13 November 2018 (2018-11-13), XP051480122, Retrieved from the Internet [retrieved on 20200310]

SBPJ PATENT FIRM (JP)

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