Invention Application
- Patent Title: CHANNEL STATE INFORMATION REFERENCE SIGNAL FOR WIDEBAND OPERATION
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Application No.: US17662665Application Date: 2022-05-10
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Publication No.: US20220337299A1Publication Date: 2022-10-20
- Inventor: Jing SUN , Ananta Narayanan THYAGARAJAN , Kapil BHATTAD , Xiaoxia ZHANG
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Priority: IN201941028335 20190715
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04W74/08 ; H04L1/00 ; H04L5/00

Abstract:
This disclosure provides systems, methods, and apparatuses for determining whether a channel state information reference signal (CSI-RS) is to be transmitted, and a configuration for transmission of the CSI-RS on a wideband based on an outcome of a listen-before-talk (LBT) operation in multiple sub-bands of the wideband. In one aspect, a base station may transmit sub-band usage information indicating sub-band availability before the CSI-RS, thereby allowing a user equipment (UE) to determine whether the CSI-RS will be transmitted and, if so, on which sub-bands the CSI-RS will be transmitted. Furthermore, rate matching configurations are provided based on whether sub-band usage has been received, based on which sub-bands are available. Still further, power configurations and resource element selection criteria are provided for wideband CSI-RS and CSI feedback.
Public/Granted literature
- US11742920B2 Channel state information reference signal for wideband operation Public/Granted day:2023-08-29
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