# US 2021/0345298 A1 · User equipment and signal transmission method

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- Number: US 2021/0345298 A1
- Document ID: US20210345298A1
- Status: Published application
- Kind: A1
- Application number: 17/372,922
- Filed: 2021-07-12
- Published: 2021-11-04
- Earliest claimed: 2016-08-10
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Shinpei Yasukawa; Satoshi Nagata; Qun Zhao; Jing Wang; Huan Wang; Liu Liu; Anxin Li; Huiling Jiang
- Web page: https://patentgrep.com/patent/US20210345298A1

## CPC

- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W 74/0816: with collision avoidance
- H04W 92/18: between terminal devices
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 24/08: Testing, {supervising or monitoring} using real traffic
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A terminal is disclosed including a selection unit that selects first resource candidates for sidelink transmission based on monitoring in a sensing window, and specifies second resource candidates by excluding specific periodic resources that are reserved by another terminal from the first resource candidates; and a transmission unit that performs sidelink transmission using a resource selected from the second resource candidates. In another aspect, a transmission method executed by a terminal is also disclosed.

## Claims

### Claim 1

A terminal comprising:
a selection unit that selects first resource candidates for sidelink transmission based on monitoring in a sensing window, and specifies second resource candidates by excluding specific periodic resources that are reserved by another terminal from the first resource candidates; and
a transmission unit that performs sidelink transmission using a resource selected from the second resource candidates.

### Claim 2 (depends on 1)

The terminal as claimed in claim 1, wherein the specific resources are resources which overlap with resources of a transmission period configured in the terminal.

### Claim 3

A transmission method executed by a terminal comprising:
selecting first resource candidates for sidelink transmission based on monitoring in a sensing window;
specifying second resource candidates by excluding specific periodic resources that are reserved by another terminal from the first resource candidates; and
performing sidelink transmission using a resource selected from the second resource candidates.