# US 2021/0242923 A1 · User terminal and radio base station

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

- Number: US 2021/0242923 A1
- Document ID: US20210242923A1
- Status: Published application
- Kind: A1
- Application number: 17/053,982
- Filed: 2018-05-10
- Published: 2021-08-05
- Earliest claimed: 2018-05-10
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Kazuki Takeda; Satoshi Nagata; Lihui Wang; Xiaolin Hou
- Web page: https://patentgrep.com/patent/US20210242923A1

## CPC

- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04B 7/088: {using beam selection}
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W 72/046: {the resource being in the space domain, e.g. beams}
- H04W 76/19: Connection re-establishment
- H04W 16/28: using beam steering
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

A user terminal has a receiving section that receives a downlink signal, and a control section that compares at least one threshold set, among a number of threshold sets, with a value that is based on receipt of the downlink signal, and the threshold sets are associated with a number of communication requirements, respectively, and the threshold sets each include a number of thresholds for at least one of radio link monitoring and beam failure detection.

## Claims

### Claim 1

A user terminal comprising:
a receiving section that receives a downlink signal; and
a control section that compares at least one threshold set, among a plurality of threshold sets, with a value that is based on receipt of the downlink signal, wherein:
the plurality of threshold sets are associated with a plurality of communication requirements, respectively; and
the plurality of threshold sets each include a plurality of thresholds for at least one of radio link monitoring and beam failure detection.

### Claim 2 (depends on 1)

The user terminal according to claim 1, wherein the control section uses one threshold set for the comparison, among the plurality of threshold sets, based on whether or not the user terminal supports a given communication requirement or based on whether or not the user terminal is configured with the given communication requirement.

### Claim 3 (depends on 1)

The user terminal according to claim 1, wherein:
the receiving section receives information indicating one threshold set, among the plurality of threshold sets; and
the control section uses the threshold set; indicated by the information, for the comparison.

### Claim 4 (depends on 1)

The user terminal according to claim 1 wherein the control section compares each of the plurality of threshold sets with a value that is based on the downlink signal, and controls reporting of a plurality of comparison results that are based respectively on the plurality of threshold sets.

### Claim 5 (depends on 1)

The user terminal according to claim 1, wherein:
the plurality of threshold sets each include two thresholds for beam failure detection; and
the control section uses at least one threshold set, among the plurality of threshold sets, per serving cell, for the comparison.

### Claim 6

A radio base station comprising:
a transmission section that transmits a downlink signal; and
a control section that controls receipt of a comparison result between at least one threshold set among a plurality of threshold sets, with a value that is based on receipt of the downlink signal, wherein:
the plurality of threshold sets are associated with a plurality of communication requirements, respectively; and
the plurality of threshold sets each include a plurality of thresholds for at least one of radio link monitoring and beam failure detection.

### Claim 7 (depends on 2)

The user terminal according to claim 2, wherein:
the plurality of threshold sets each include two thresholds for beam failure detection; and
the control section uses at least one threshold set, among the plurality of threshold sets, per serving cell, for the comparison.

### Claim 8 (depends on 3)

The user terminal according to claim 3, wherein:
the plurality of threshold sets each include two thresholds for beam failure detection; and
the control section uses at least one threshold set, among the plurality of threshold sets, per serving cell, for the comparison.

### Claim 9 (depends on 4)

The user terminal according to claim 4, wherein:
the plurality of threshold sets each include two thresholds for beam failure detection; and
the control section uses at least one threshold set, among the plurality of threshold sets, per serving cell, for the comparison.