	US 12,238,606 B2
	Method for V2X service, and server using same
Min Song, Seoul (KR); Kwangsik Kong, Seoul (KR); Seongwoo Jeong, Seoul (KR); and Hakseong Kim, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/776,887
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed May 19, 2020, PCT No. PCT/KR2020/006535 § 371(c)(1), (2) Date May 13, 2022, PCT Pub. No. WO2021/235567, PCT Pub. Date Nov. 25, 2021.
Prior Publication US 2022/0408214 A1, Dec. 22, 2022
Int. Cl. H04W 4/021 (2018.01); H04W 4/12 (2009.01); H04W 4/40 (2018.01)

CPC H04W 4/021 (2013.01) [H04W 4/12 (2013.01); H04W 4/40 (2018.02)]

8 Claims

1. 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 device to perform functions comprising:

determining a size of a subscription area for the V2X service based on a speed of the device and an amount of time during which the device is expected to stay in one tile, the subscription area including at least one tile, each the at least one tile including a geographic quadrant obtained based on a quadtree;

transmitting, to a V2X server, a subscription request for requesting a subscription of the V2X service, the subscription request including area configuration information about configuration or modification of the subscription area;

receiving, from the V2X server, a subscription response for granting the subscription in response to the subscription request; and

receiving, from the V2X server, at least one V2X message that is received by the V2X server from at least one provider V2X device, wherein the subscription area of the device overlaps with all or a part of a subscription area of each of the at least one provider V2X device.