US Patent Application 18340957. CHANNEL STATE INFORMATION (CSI) MEASUREMENTS AND CSI REPORTING IN LICENSED ASSISTED ACCESS (LAA) simplified abstract

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CHANNEL STATE INFORMATION (CSI) MEASUREMENTS AND CSI REPORTING IN LICENSED ASSISTED ACCESS (LAA)

Organization Name

Apple Inc.


Inventor(s)

Abhijeet Bhorkar of Fremont CA (US)

Hwan-Joon Kwon of Santa Clara CA (US)

Jeongho Jeon of San Jose CA (US)

Qiaoyang Ye of Fremont CA (US)

CHANNEL STATE INFORMATION (CSI) MEASUREMENTS AND CSI REPORTING IN LICENSED ASSISTED ACCESS (LAA) - A simplified explanation of the abstract

This abstract first appeared for US patent application 18340957 titled 'CHANNEL STATE INFORMATION (CSI) MEASUREMENTS AND CSI REPORTING IN LICENSED ASSISTED ACCESS (LAA)

Simplified Explanation

- The patent application discusses techniques for reporting channel state information (CSI). - The techniques are specifically applicable to license assisted access (LAA) secondary cells (SCells). - The user equipment (UE) apparatus described in the patent application can derive channel measurements based on reference signals in the subframes of the LAA SCell. - The UE apparatus generates CSI that includes a channel quality indicator (CQI) based on the average of the channel measurements from multiple subframes. - The CSI report generated by the UE apparatus indicates the set of CSI parameters. - The patent application focuses on the specific occupancy of OFDM symbols in the first and second subframes, as well as the OFDM symbols between them.


Original Abstract Submitted

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.