# US 12,114,206 B2 · Terminal and wireless communication method for controlling uplink

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- Number: US 12,114,206 B2
- Document ID: US12114206B2
- Status: Granted
- Kind: B2
- Application number: 17/442,383
- Filed: 2019-03-27
- Published: 2022-06-02
- Granted: 2024-10-08
- Earliest claimed: 2019-03-27
- Assignees: Ntt Docomo, Inc.
- Applicants: Ntt Docomo, Inc.
- Inventors: Hiroki Harada; Satoshi Nagata
- Web page: https://patentgrep.com/patent/US12114206B2

## CPC

- H04W 28/06: Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)}
- H04W 72/1268: of uplink data flows
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 88/04: adapted for relaying to or from another terminal or user
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

This terminal is provided with: a reception unit for receiving control information concerning uplink transmission, which is common to a terminal group; and a control unit for controlling at least one of the uplink transmission and reception from another terminal which performs the uplink transmission, on the basis of the control information.

## Claims

### Claim 1

A terminal, comprising:
a reception section that receives group-common Downlink Control Information (DCI) related to uplink transmission, the group-common DCI being common to a terminal group; and
a control section that controls, based on the group-common DCI, at least one of the uplink transmission and sidelink reception from another terminal performing the uplink transmission,
wherein the control section recognizes a representative of the terminal group based on the group-common DCI,
wherein if the terminal is the representative, the control section controls the uplink transmission and sidelink transmission to other terminals belonging to the terminal group based on the group-common DCI, and
wherein if the terminal is not the representative, the control section controls the sidelink reception from other representative terminals based on the group-common DCI and the uplink transmission based on specific DCI which is different from the group-common DCI.

### Claim 2 (depends on 1)

The terminal according to claim 1, wherein the control section controls reception of the group-common DCI by using identification information common to the terminal group.

### Claim 3 (depends on 1)

The terminal according to claim 1, wherein the reception section receives group-common DCI for another terminal belonging to the terminal group, and the control section controls transfer of the group-common DCI for the other terminal belonging to the terminal group to the other terminal.

### Claim 4

A radio communication method, comprising:
receiving, by a terminal, group-common Downlink Control Information (DCI) related to uplink transmission, the group-common DCI being common to a terminal group; and
controlling, by the terminal, based on the group-common DCI, at least one of the uplink transmission and sidelink reception from another terminal performing the uplink transmission,
wherein recognizing, by a terminal, a representative of the terminal group based on the group-common DCI,
wherein if the terminal is the representative, controlling, by a terminal, the uplink transmission and sidelink transmission to other terminals belonging to the terminal group based on the group-common DCI, and
wherein if the terminal is not the representative, controlling, by a terminal, the sidelink reception from other representative terminals based on the group-common DCI and the uplink transmission based on specific DCI which is different from the group-common DCI.