# US 2026/0101339 A1 · Communication device and communication method

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- Number: US 2026/0101339 A1
- Document ID: US20260101339A1
- Status: Published application
- Kind: A1
- Application number: 18/998,024
- Filed: 2023-03-15
- Published: 2026-04-09
- Earliest claimed: 2022-07-28
- Assignees: Panasonic Intellectual Property Corporation of America
- Applicants: Panasonic Intellectual Property Corporation of America
- Inventors: Yutaka MURAKAMI
- Web page: https://patentgrep.com/patent/US20260101339A1

## CPC

- H04L 5/0005: {Time-frequency}
- H04W 72/20: Control channels or signalling for resource management
- H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT}
- H04W 52/10: Open loop power control
- H04W 52/143: {Downlink power control}
- H04W 52/243: {taking into account interferences}
- H04W 72/0473: {the resource being transmission power}
- 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 communication device according to the present invention comprises: a communication unit that transmits a first signal and receives the first signal in a state in which there is at least one communication device that uses the same frequency and the same time period to perform processing for transmission and reception, and in which in a first time period in a frequency band in which the processing can be carried out, no signal is transmitted from another communication device or a plurality of communication devices; and a control unit that determines a transmission power based on the received first signal, wherein in a second time period in the frequency band, the communication unit uses the transmission power to transmit a second signal to said one communication device or a communication device among the plurality of communication devices.

## Claims

### Claim at position 1

1-6. (canceled)

### Claim 7

A communication apparatus, comprising:
a receiver, which, in operation, receives a downlink signal from a first Transmission and Reception Point (TRP); and
a transmitter, which, in operation, transmits a first uplink signal to the first TRP and a second uplink signal to a second TRP.

### Claim 8 (depends on 7)

The communication apparatus of claim 7, wherein the communication apparatus is operated with a single TRP of the first TRP in a downlink reception, and is operated with two TRPs of the first TRP and the second TRP in an uplink transmission.

### Claim 9 (depends on 7)

The communication apparatus of claim 7, wherein the first uplink signal and the second uplink signal are transmitted at a same time.

### Claim 10 (depends on 7)

The communication apparatus of claim 7, wherein the receiver, in operation, receives control information from the first TRP, the control information including transmit power information related to the second TRP.

### Claim 11 (depends on 10)

The communication apparatus of claim 10, wherein the second uplink signal is transmitted to the second TRP at a transmit power, the transmit power being determined based on the transmit power information transmitted from the first TRP.

### Claim 12 (depends on 11)

The communication apparatus of claim 11, wherein the transmit power is adjusted by a closed loop transmission power control.

### Claim 13

A communication method, comprising:
receiving a downlink signal from a first Transmission and Reception Point (TRP); and
transmitting a first uplink signal to the first TRP and a second uplink signal to a second TRP.

### Claim 14 (depends on 13)

The communication method of claim 13, which is executed with a single TRP of the first TRP in a downlink reception, and is executed with two TRPs of the first TRP and the second TRP in an uplink transmission.

### Claim 15 (depends on 13)

The communication method of claim 13, wherein the first uplink signal and the second uplink signal are transmitted at a same time.

### Claim 16 (depends on 13)

The communication method of claim 13, comprising:
receiving control information from the first TRP, the control information including transmit power information related to the second TRP.

### Claim 17 (depends on 16)

The communication method of claim 16, wherein the second uplink signal is transmitted to the second TRP at a transmit power, the transmit power being determined based on the transmit power information transmitted from the first TRP.

### Claim 18 (depends on 17)

The communication method of claim 17, wherein the transmit power is adjusted by a closed loop transmission power control.

### Claim 19

An integrated circuit, comprising:
reception circuitry, which, in operation, controls receiving a downlink signal from a first Transmission and Reception Point (TRP); and
transmission circuitry, which, in operation, controls transmitting a first uplink signal to the first TRP and a second uplink signal to a second TRP.