# US 12,225,569 B2 · User equipments, base stations and methods for time domain correlation information reporting

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- Number: US 12,225,569 B2
- Document ID: US12225569B2
- Status: Granted
- Kind: B2
- Application number: 17/589,628
- Filed: 2022-01-31
- Published: 2023-08-03
- Granted: 2025-02-11
- Earliest claimed: 2022-01-31
- Assignees: Sharp Kabushiki Kaisha
- Applicants: Sharp Kabushiki Kaisha
- Inventors: Kazunari Yokomakura; Zhanping Yin; Kai Ying
- Web page: https://patentgrep.com/patent/US12225569B2

## CPC

- H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)}
- H04W 72/542: using measured or perceived quality
- H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Examples of user equipments (UEs) are described. A UE includes receiving circuitry configured to receive first information to configure one or more channel state information-reference signals (CSI-RS) for tracking and second information to configure time domain correlation related information. The UE also includes transmitting circuitry configured to transmit a channel state information (CSI) report including the time domain correlation related information. A first parameter trs-Info is included in the first information. A second parameter reportQuantity is not set to ‘none’. The time domain correlation related information is measured by the one or more CSI-RS for tracking.

## Claims

### Claim 1

A user equipment (UE) comprising:
receiving circuitry configured to receive first information to configure one or more non-zero power channel state information reference signal (CSI-RS) resources and second information to configure CSI reporting,
measurement circuitry configured to measure time domain correlation related information based on the second information, and
transmitting circuitry configured to transmit a channel state information (CSI) report including the time domain correlation related information based on the second information,
wherein:
the second information is associated with the first information,
the first information includes a first parameter trs-Info, the first parameter trs-Info indicates the one or more CSI-RS resources for tracking in the time and frequency domain,
the second information includes a second parameter reportQuantity indicating a kind of CSI is set to ‘TDCI’, and
the ‘TDCI’ indicates time domain correlation related information.

### Claim 2

A base station comprising:
transmitting circuitry configured to transmit first information to configure one or more non-zero power channel state information reference signal (CSI-RS) resources and second information to configure CSI reporting, and
receiving circuitry configured to receive a channel state information (CSI) report including the time domain correlation related information based on the second information,
wherein:
the second information is associated with the first information,
the first information includes a first parameter trs-Info, the first parameter trs-Info indicates the one or more CSI-RS resources for tracking in the time and frequency domain,
the second information includes a second parameter reportQuantity indicating a kind of CSI is set to ‘TDCI’, and
the ‘TDCI’ indicates time domain correlation related information.

### Claim 3

A communication method of a user equipment (UE) comprising:
receiving first information to configure one or more non-zero power channel state information reference signal (CSI-RS) resources and second information to configure CSI reporting,
measuring time domain correlation related information based on the second information, and
transmitting a channel state information (CSI) report including the time domain correlation related information based on the second information,
wherein:
the second information is associated with the first information,
the first information includes a first parameter trs-Info, the first parameter trs-Info indicates the one or more CSI-RS resources for tracking in the time and frequency domain,
the second information includes a second parameter reportQuantity indicating a kind of CSI is set to ‘TDCI’, and
the ‘TDCI’ indicates time domain correlation related information.