# US 12,010,680 B2 · User terminal and radio communication method

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- Number: US 12,010,680 B2
- Document ID: US12010680B2
- Status: Granted
- Kind: B2
- Application number: 17/598,614
- Filed: 2019-03-28
- Published: 2022-06-09
- Granted: 2024-06-11
- Earliest claimed: 2019-03-28
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Yuki Matsumura; Shohei Yoshioka; Daisuke Murayama; Satoshi Nagata
- Web page: https://patentgrep.com/patent/US12010680B2

## CPC

- H04W 72/1268: of uplink data flows
- H04W 74/08: Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02)
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/20: Control channels or signalling for resource management
- H04W 72/569: {of the traffic information}
- H04W 74/0875: {with assigned priorities based access}
- 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 transmitting section that performs first signal transmission during a first period within a periodic time interval, and a control section that determines, based on priority of the first signal transmission, whether to perform second signal transmission during a second period after the first period within the time interval. According to an aspect of the present disclosure, resource utilization efficiency can be increased.

## Claims

### Claim 1

A terminal comprising:
a processor that determines a first resource for a first transmission, according to a first priority based on first sidelink control information, according to a measurement result of received power of received second sidelink control information, and according to a second priority based on the received second sidelink control information; and
a transmitter that transmits the first sidelink control information indicating the first resource for the first transmission,
wherein the processor, when received third sidelink control information indicates a second resource for a second transmission and the second resource is at least a part of the first resource, determines whether or not to perform the first transmission using the first resource, according to the first priority based on the first sidelink control information, according to a measurement result of received power of the received third sidelink control information, and according to a third priority based on the received third sidelink control information.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein when it is determined not to perform the first transmission using the first resource, the processor determines a third resource for the first transmission, from one or more resources which are not indicated by received sidelink control information.

### Claim 3

A radio communication method for a terminal, comprising:
determining a first resource for a first transmission, according to a first priority based on first sidelink control information, according to a measurement result of received power of received second sidelink control information, and according to a second priority based on the received second sidelink control information; and
transmitting the first sidelink control information indicating the first resource for the first transmission; and
determining, when received third sidelink control information indicates a second resource for a second transmission and the second resource is at least a part of the first resource, whether or not to perform the first transmission using the first resource, according to the first priority based on the first sidelink control information, according to a measurement result of received power of the received third sidelink control information, and according to a third priority based on the received third sidelink control information.

### Claim 4

A system comprising a first terminal, a second terminal, and a third terminal, wherein
the first terminal comprises:
a transmitter that transmits first sidelink control information indicating a first resource for a first transmission; and
a processor that determines the first resource, according to a first priority based on the first sidelink control information, according to a measurement result of received power of received second sidelink control information, and according to a second priority based on the second sidelink control information,
wherein the processor, when received third sidelink control information indicates a second resource for a second transmission and the second resource is at least a part of the first resource, determines whether or not to perform the first transmission using the first resource, according to the first priority based on the first sidelink control information, according to a measurement result of received power of the received third sidelink control information, and according to a third priority based on the received third sidelink control information;
the second terminal transmits the received second sidelink control information, and
the third terminal transmits the received third sidelink control information.