Invention Application
- Patent Title: METHOD OF CHANNEL STATE INFORMATION (CSI) FEEDBACK, METHOD OF IDENTIFYING SPACE DOMAIN (SD) AND FREQUENCY DOMAIN (FD) BASIS SUBSETS, AND USER EQUIPMENT
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Application No.: PCT/US2020/021733Application Date: 2020-03-09
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Publication No.: WO2020181284A1Publication Date: 2020-09-10
- Inventor: RUPASINGHE, Nadisanka , NAGATA, Satoshi , MATSUMURA, Yuki
- Applicant: NTT DOCOMO, INC. , DOCOMO INNOVATIONS, INC.
- Applicant Address: 11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo, 100-6150 JP
- Assignee: NTT DOCOMO, INC.,DOCOMO INNOVATIONS, INC.
- Current Assignee: NTT DOCOMO, INC.,DOCOMO INNOVATIONS, INC.
- Current Assignee Address: 11-1, Nagatacho 2-chome, Chiyoda-ku Tokyo, 100-6150 JP
- Agency: SCHERER, Thomas, K. et al.
- Priority: US62/815,212 20190307
- Main IPC: H04B7/0456
- IPC: H04B7/0456 ; H04L5/00 ; H04L1/00
Abstract:
A method of Channel State Information (CSI) feedback in a wireless communication system includes: obtaining, with a user equipment, a first value that is a beam number value; obtaining, with the user equipment, a second value that is a scaling factor value for a vector pattern of a size M; and assigning, with the user equipment, the first value and the second value across a plurality of layers. The plurality of layers are layers with a rank indicator (RI) of a value being greater than (2). The method further includes assigning, with the user equipment, the first value and the second value to layers in a given rank out of the plurality of layers. The first value and the second value are common for the layers in the given rank.
Information query
