Invention Grant
- Patent Title: PMI-based data beam nulling with a CSI report
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Application No.: US17806068Application Date: 2022-06-08
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Publication No.: US11777568B2Publication Date: 2023-10-03
- Inventor: Shiyang Leng , Hao Chen , Ahmed Atef Ibrahim Ibrahim , Namjeong Lee , Sooyoung Hur
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Main IPC: H04B7/0456
- IPC: H04B7/0456 ; H04L1/00

Abstract:
Apparatuses and methods for precoding matrix indicator (PMI)-based data beam nulling with a channel state information (CSI) report. An apparatus includes a transceiver configured to communicate via a wired or wireless communication medium and a processor coupled to the transceiver. The processor is configured to identify restricted PMI beams in a nulling direction for supported ranks; receive, via the transceiver from a user equipment (UE), a CSI report including a rank, a PMI, and channel quality indicator (CQI) feedback; and determine whether the reported PMI is restricted. The processor is further configured to select an alternative PMI among a number of unrestricted PMIs for the reported rank; boost a reported CQI if a reduced transmit power is configured; and select a modulation coding scheme (MCS) and generate a precoder for a data beam based on at least one of: the CSI report, the alternative PMI, and the boosted CQI.
Public/Granted literature
- US20230033259A1 PMI-BASED DATA BEAM NULLING WITH A CSI REPORT Public/Granted day:2023-02-02
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