# US 12,114,205 B2 · Wireless communication method, apparatus and system for transmitting sidelink signals using an exceptional resource pool

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

- Number: US 12,114,205 B2
- Document ID: US12114205B2
- Status: Granted
- Kind: B2
- Application number: 17/725,379
- Filed: 2022-04-20
- Published: 2022-08-04
- Granted: 2024-10-08
- Earliest claimed: 2022-04-20
- Assignees: Panasonic Intellectual Property Corporation of America
- Applicants: Panasonic Intellectual Property Corporation of America
- Inventors: Lilei Wang; Joachim Loehr; Prateek Basu Mallick
- Web page: https://patentgrep.com/patent/US12114205B2

## CPC

- H04W 28/0284: {detecting congestion or overload during communication (monitoring arrangements H04L43/00)}
- H04B 17/328: {Reference signal received power [RSRP]; Reference signal received quality [RSRQ]}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 76/23: Manipulation of direct-mode connections
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION

## Abstract

There are provided an apparatus, a method and a system, at a first node, and the apparatus comprises: a transmitter operative to transmit sidelink signals to a second node; and a controller operative to determine whether to use an exceptional resource pool based on at least one of a first condition and a second condition, for the transmitter to transmit sidelink signals, wherein the first condition includes that a first channel busy ratio measured during a first congestion control operation regarding a current resource pool is higher than a first threshold, and the second condition includes that at least one packet is determined to be dropped during the first congestion control operation.

## Claims

### Claim 1

An apparatus comprising:
a transmitter, which, in operation, transmits a sidelink signal; and
a controller, which, responsive to a ratio of a number of available resources to a number of total resources being less than a determined value, determines to use an exceptional resource pool other than a normal resource pool to transmit the sidelink signal.

### Claim 2 (depends on 1)

The apparatus according to claim 1, wherein the controller, in operation, determines whether to use the exceptional resource pool in a step of determining a subset of resources to be excluded during Physical Sidelink Shared Channel (PSSCH) resource selection.

### Claim 3 (depends on 1)

The apparatus according to claim 1, wherein the exceptional resource pool is configured by commTxPoolExceptional message.

### Claim 4

A method comprising:
transmitting a sidelink signal; and
responsive to a ratio of a number of available resources to a number of total resources being less than a determined value, determining to use an exceptional resource pool other than a normal resource pool to transmit the sidelink signal.

### Claim 5 (depends on 4)

The method according to claim 4, wherein the determining includes determining whether to use the exceptional resource pool in a step of determining a subset of resources to be excluded during Physical Sidelink Shared Channel (PSSCH) resource selection.

### Claim 6 (depends on 4)

The method according to claim 4, wherein the exceptional resource pool is configured by commTxPoolExceptional message.