Invention Grant
- Patent Title: Hierarchical channel state information (CSI) feedback with partial reciprocity in a network
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Application No.: US17442429Application Date: 2020-08-07
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Publication No.: US12003300B2Publication Date: 2024-06-04
- Inventor: Weidong Yang , Chunhai Yao , Chunxuan Ye , Dawei Zhang , Haitong Sun , Hong He , Ismael Gutierrez Gonzalez , Jie Cui , Oghenekome Oteri , Sigen Ye , Wei Zeng , Yang Tang , Yushu Zhang
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Eschweiler & Potashnik, LLC
- International Application: PCT/CN2020/107926 2020.08.07
- International Announcement: WO2022/027631A 2022.02.10
- Date entered country: 2021-09-23
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04B7/0456 ; H04L5/00

Abstract:
A base station or other network component (next generation NodeB (gNB)) can operate to transmit a channel state information reference signal (CSI-RS) for channel state information (CSI) feedback. The CSI feedback can be received as corresponding to one or more frequency parts at hierarchical precoding levels of a frequency band based on a hierarchical precoding scheme in response to providing the CSI-RS.
Public/Granted literature
- US20230208488A1 HIERARCHICAL CHANNEL STATE INFORMATION (CSI) FEEDBACK WITH PARTIAL RECIPROCITY IN A NETWORK Public/Granted day:2023-06-29
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