# US 12,225,533 B2 · Communication apparatus and communication method for control signaling

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,225,533 B2
- Document ID: US12225533B2
- Status: Granted
- Kind: B2
- Application number: 17/770,593
- Filed: 2020-09-10
- Published: 2022-09-15
- Granted: 2025-02-11
- Earliest claimed: 2019-11-07
- Assignees: Panasonic Intellectual Property Corporation of America
- Applicants: Panasonic Intellectual Property Corporation of America
- Inventors: Lei Huang; Yoshio Urabe; Rojan Chitrakar
- Web page: https://patentgrep.com/patent/US12225533B2

## CPC

- H04W 72/20: Control channels or signalling for resource management
- H04W 74/006: {in the downlink, i.e. towards the terminal}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present disclosure provides communication apparatus and communication method for control signaling. A communication apparatus comprises circuitry which, in operation, generates a transmission signal comprising a plurality of user fields and a data field, the data field comprising a plurality of resource units (RUs); a transmitter, which, in operation, transmits the generated transmission signal; wherein a single transmission scheme is applied to one or more RUs of the plurality of RUs, which are assigned to another communication apparatus; and wherein one or more user fields of the plurality of user fields are addressed to the another communication apparatus and a number of the one or more user fields addressed to the another communication apparatus is equal to a number of the one or more RUs assigned to the another communication apparatus; and the one or more user fields addressed to the another communication apparatus correspond to the one or more RUs assigned to the another communication apparatus respectively.

## Claims

### Claim 1

A communication apparatus, comprising:
a transmitter, which, in operation, transmits a trigger frame comprising a user field that contains an association identifier 12 (AID12) subfield and a signaling indicating multiple resource units (RUs); and
a receiver, which, in operation, receives, from a station identified by the AID12 subfield, a trigger based (TB) physical layer protocol data unit (PPDU) transmitted using the multiple RUs,
wherein if first multiple contiguous RUs are as large as a single RU and fit into the single RU in a frequency domain, the first multiple contiguous RUs are not allocated to a station.

### Claim 2 (depends on 1)

The communication apparatus according to claim 1,
wherein the multiple RUs have a same RU size.

### Claim 3 (depends on 1)

The communication apparatus according to claim 1,
wherein the multiple RUs have different RU sizes.

### Claim 4 (depends on 1)

The communication apparatus according to claim 1,
wherein the multiple RUs are multiple contiguous RUs.

### Claim 5 (depends on 1)

The communication apparatus according to claim 1,
wherein the multiple RUs are multiple non-contiguous RUs.

### Claim 6 (depends on 1)

The communication apparatus according to claim 1,
wherein the multiple RUs are indicated by a set of two subfields in the user field.

### Claim 7 (depends on 1)

The communication apparatus according to claim 1,
wherein the trigger frame comprises a first type user field and a second type user field, and the second type user field does not carry a portion of user specific information, wherein said portion is carried in the first type user field.

### Claim 8

A communication method, comprising:
transmitting a trigger frame comprising a user field that contains an association identifier 12 (AID12) subfield and a signaling indicating multiple resource units (RUs); and
receiving, from a station identified by the AID12 subfield, a trigger based (TB) physical layer protocol data unit (PPDU) transmitted using the multiple RUS,
wherein if first multiple contiguous RUs are as large as a single RU and fit into the single RU in a frequency domain, the first multiple contiguous RUs are not allocated to a station.