# US 12,225,441 B2 · Server, method and device for V2X service

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- Number: US 12,225,441 B2
- Document ID: US12225441B2
- Status: Granted
- Kind: B2
- Application number: 17/911,060
- Filed: 2020-07-01
- Published: 2023-04-06
- Granted: 2025-02-11
- Earliest claimed: 2020-07-01
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Min Song; Jiyoon Oh; Hakseong Kim
- Web page: https://patentgrep.com/patent/US12225441B2

## CPC

- H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W 4/021: Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
- H04W 4/025: {using location based information parameters}
- H04W 4/08: User group management
- H04W 72/12: Wireless traffic scheduling
- H04W 88/18: Service support devices; Network management devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A server for a vehicle-to-everything (V2X) service sets a device area comprising a plurality of V2X devices, and classifies the plurality of V2X devices within the device area into a plurality of device groups. The plurality of device groups have mutually different transmission periods.

## Claims

### Claim 1

A server for vehicle-to-everything (V2X) service, the server comprising:
a processor; and
a memory operatively coupled with the processor and configured to store instructions that, when executed by the processor, cause the server to perform functions comprising:
configuring a device area comprising a plurality of V2X devices, wherein each V2X device periodically transmits a V2X message to the server according a transmission period, the V2X message comprising a V2X ID identifying a corresponding V2X device and driving information of the corresponding V2X device; and
classifying the plurality of V2X devices within the device area into a plurality of device groups,
wherein the plurality of device groups have different transmission periods.

### Claim 2 (depends on 1)

The server of claim 1, wherein the device area is classified so that a first device group including one or more V2X devices with the highest risk is placed at the border of the device area.

### Claim 3 (depends on 2)

The server of claim 2, wherein the device area is classified so that a second device group including one or more V2X devices having a lower risk than the first device group is disposed inside the device area.

### Claim 4 (depends on 3)

The server of claim 3, wherein the first device group has a shorter transmission period than the second device group.

### Claim 5 (depends on 1)

The server of claim 1, wherein the functions further comprise:
transmitting a control message for controlling the transmission period to each V2X device in the plurality of device groups.

### Claim 6 (depends on 5)

The server of claim 5, wherein the control message includes at least one of an evaluated risk of a corresponding V2X device, the device area, a location of the corresponding V2X device in the device area, a device group to which the corresponding V2X device belongs, and the transmission period.

### Claim 7

A method for vehicle-to-everything (V2X) service, the method performed by a server and comprising:
configuring a device area comprising a plurality of V2X devices, wherein each V2X device periodically transmits a V2X message to the server according a transmission period, the V2X message comprising a V2X ID identifying a corresponding V2X device and driving information of the corresponding V2X device; and
classifying the plurality of V2X devices within the device area into a plurality of device groups,
wherein the plurality of device groups have different transmission periods.

### Claim 8 (depends on 7)

The method of claim 7, wherein the device area is classified so that a first device group including one or more V2X devices with the highest risk is placed at the border of the device area.

### Claim 9 (depends on 8)

The method of claim 8, wherein the device area is classified so that a second device group including one or more V2X devices having a lower risk than the first device group is disposed inside the device area.

### Claim 10 (depends on 9)

The method of claim 9, wherein the first device group has a shorter transmission period than the second device group.

### Claim 11

A device for vehicle-to-everything (V2X) service, the device comprising:
a processor; and
a memory operatively coupled with the processor and configured to store instructions that, when executed by the processor, cause the server to perform functions comprising:
transmitting periodically a V2X message to a V2X server according a transmission period, the V2X message comprising a V2X ID identifying the device and driving information of the device;
receiving a control message for modifying the transmission period from the V2X server device; and
determining whether the transmission period is modified based on the control message.

### Claim 12 (depends on 11)

The device of claim 11, wherein the control message includes at least one of an evaluated risk of the device, a device group to which the device belongs, and a transmission period proposed by the V2X server.

### Claim 13 (depends on 11)

The device of claim 11, wherein the functions further comprise:
when the transmission period is modified, transmitting a message including information on the modified transmission period to the V2X server.