# US 12,120,683 B2 · User equipment and feedback information transmission method

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- Number: US 12,120,683 B2
- Document ID: US12120683B2
- Status: Granted
- Kind: B2
- Application number: 17/420,912
- Filed: 2019-01-09
- Published: 2022-03-03
- Granted: 2024-10-15
- Earliest claimed: 2019-01-09
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Shohei Yoshioka; Satoshi Nagata; Huan Wang; Xiaolin Hou
- Web page: https://patentgrep.com/patent/US12120683B2

## CPC

- H04L 1/1854: {Scheduling and prioritising arrangements}
- H04W 72/20: Control channels or signalling for resource management
- H04L 1/1671: {the supervisory signal being transmitted together with control information}
- H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)}
- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
- H04W 4/46: for vehicle-to-vehicle communication [V2V]
- 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

A user equipment including: a reception unit configured to receive sidelink data from a transmission side user equipment; and a transmission unit configured to transmit feedback information for the sidelink data, wherein the transmission unit transmits the feedback information using a resource determined based on a transmission ID that is an ID on the transmission side user equipment, or a reception ID that is an ID on the user equipment, or both of the transmission ID and the reception ID.

## Claims

### Claim 1

A terminal comprising:
a receiver configured to receive data and control information by sidelink;
a processor configured to determine a resource for transmitting feedback information for the data based on a transmission source ID included in the control information; and
a transmitter configured to transmit the feedback information by the resource,
wherein the processor is configured to determine the resource by using a function that inputs the transmission source ID and outputs information indicating the resource.

### Claim 2 (depends on 1)

The terminal as claimed in claim 1, wherein the resource for transmitting the feedback information is associated with a transmission resource of the data.

### Claim 3

A terminal comprising:
a transmitter configured to transmit data and control information by sidelink; and
a receiver configured to receive feedback information for the data, wherein the feedback information is transmitted by a resource that is determined based on a transmission source ID included in the control information,
wherein the receiver receives the feedback information by the resource that is determined by using a function that inputs the transmission source ID and outputs information indicating the resource.

### Claim 4

A communication method executed by a terminal, the communication method comprising:
receiving data and control information by sidelink;
determining a resource for transmitting feedback information for the data based on a transmission source ID included in the control information;
transmitting the feedback information by the resource; and
determining the resource by using a function that inputs the transmission source ID and outputs information indicating the resource.