Invention Grant
- Patent Title: Channel state information (CSI) measurements and CSI reporting in licensed assisted access (LAA)
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Application No.: US16994965Application Date: 2020-08-17
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Publication No.: US11337098B2Publication Date: 2022-05-17
- Inventor: Abhijeet Bhorkar , Hwan-Joon Kwon , Jeongho Jeon , Qiaoyang Ye
- 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
- Main IPC: H04W24/10
- IPC: H04W24/10 ; H04L5/00 ; H04B7/0456 ; H04B7/06 ; H04L1/00 ; H04L27/00

Abstract:
Techniques for channel state information (CSI) reporting are discussed. One example apparatus at a user equipment can derive, for one or more subframes of a license assisted access (LAA) secondary cell (SCell), one or more channel measurements based on reference signals (e.g., cell-specific reference signals (CRS) or CSI reference signals (CSI-RS)), in those subframes; generate CSI that comprises a channel quality indicator (CQI) based on an average of the one or more channel measurements from multiple subframes comprising a first subframe and a later second subframe, wherein each orthogonal frequency division multiplexing (OFDM) symbol of a second slot of the first subframe is occupied, wherein each of a first three OFDM symbols of the second subframe are occupied, and wherein each OFDM symbol between the first subframe and the second subframe is occupied; and generate a CSI report that indicates the set of CSI parameters.
Public/Granted literature
- US20210067996A1 CHANNEL STATE INFORMATION (CSI) MEASUREMENTS AND CSI REPORTING IN LICENSED ASSISTED ACCESS (LAA) Public/Granted day:2021-03-04
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