# US 2022/0286175 A1 · User terminal and radio communication method

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2022/0286175 A1
- Document ID: US20220286175A1
- Status: Published application
- Kind: A1
- Application number: 17/608,108
- Filed: 2019-05-02
- Published: 2022-09-08
- Earliest claimed: 2019-05-02
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Yuki Matsumura; Satoshi Nagata; Jing Wang; Xiaolin Hou
- Web page: https://patentgrep.com/patent/US20220286175A1

## CPC

- H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]}
- H04B 7/0632: {Channel quality parameters, e.g. channel quality indicator [CQI]}
- H04B 7/0617: {for beam forming}
- H04B 7/0888: {with selection}
- H04B 17/336: Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
- H04W 56/001: {Synchronization between nodes}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04B: TRANSMISSION
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A user terminal includes a control section that measures a Signal to Interference plus Noise Ratio (SINR), based on a channel measurement resource at a given order in a channel measurement resource set and an interference measurement resource at the given order in an interference measurement resource set, and a transmitting section that reports the SINR and an indicator related to the given order. According to an aspect of the present disclosure, it is possible to perform appropriate beam reporting.

## Claims

### Claim at position 1

-6. (canceled)

### Claim 7

A terminal comprising:
a receiver that receives Channel State Information (CSI) report configuration information having report quantity information that indicates a CSI parameter to report; and
a processor that, when the report quantity information indicates an index k of a Channel Measurement Resource (CMR) and a Signal to Interference plus Noise Ratio (SINR), one CMR set includes a plurality of CMRs and one Interference Measurement Resource (IMR) set includes a plurality of IMRs, derives a SINR corresponding to the index,
wherein the index k of the CMR is an integer equal to or greater than 0 and the index k of the CMR corresponds to k+1-th CMR in the CMR set and to k+1-th IMR in the IMR set.

### Claim 8 (depends on 7)

The terminal according to claim 7, wherein the index k of the CMR is CSI-RS Resource Indicator (CRI) or a Synchronization Signal Block Resource Indicator (SSBRI).

### Claim 9 (depends on 7)

The terminal according to claim 7, wherein the CMR is a non-zero power CSI-RS resource or a synchronization signal resource, and the IMR is a CSI interference measurement resource.

### Claim 10 (depends on 7)

The terminal according to claim 7, wherein when reporting a plurality of SINRs, the control section controls to report one SINR and one or more differential SINRs from the one SINR.

### Claim 11 (depends on 7)

The terminal according to claim 7, wherein the processor controls to report capability information regarding the SINR and the capability information includes a maximum number of CMRs to report.

### Claim 12

A radio communication method for a terminal, comprising:
receiving Channel State Information (CSI) report configuration information having report quantity information that indicates a CSI parameter to report; and
when the report quantity information indicates an index k of a Channel Measurement Resource (CMR) and a Signal to Interference plus Noise Ratio (SINR), one CMR set includes a plurality of CMRs and one Interference Measurement Resource (IMR) set includes a plurality of IMRs, deriving a SINR corresponding to the index,
wherein the index k of the CMR is an integer equal to or greater than 0 and the index k of the CMR corresponds to k+1-th CMR in the CMR set and to k+1-th IMR in the IMR set.

### Claim 13

A system comprising a base station and a terminal, wherein
the base station comprises:
a transmitter that transmits Channel State Information (CSI) report configuration information having report quantity information that indicates a CSI parameter to report, and
the terminal comprises:
a receiver that receives the CSI report configuration information; and
a processor that, when the report quantity information indicates an index k of a Channel Measurement Resource (CMR) and a Signal to Interference plus Noise Ratio (SINR), one CMR set includes a plurality of CMRs and one Interference Measurement Resource (IMR) set includes a plurality of IMRs, derives a SINR corresponding to the index,
wherein the index k of the CMR is an integer equal to or greater than 0 and the index k of the CMR corresponds to k+1-th CMR in the CMR set and to k+1-th IMR in the IMR set.