US 12,273,715 B2
Method of efficiently providing pathhistory in C-V2X
Yan Li, Beijing (CN); Shuping Chen, Beijing (CN); and Yue Yin, Beijing (CN)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Appl. No. 17/759,140
Filed by QUALCOMM Incorporated, San Diego, CA (US)
PCT Filed Jun. 16, 2020, PCT No. PCT/CN2020/096356
§ 371(c)(1), (2) Date Jul. 20, 2022,
PCT Pub. No. WO2021/184562, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. PCT/CN2020/079432 (WO), filed on Mar. 16, 2020.
Prior Publication US 2023/0045323 A1, Feb. 9, 2023
Int. Cl. H04W 12/069 (2021.01); H04W 4/029 (2018.01); H04W 12/02 (2009.01); G08G 1/16 (2006.01); H04W 4/40 (2018.01)
CPC H04W 12/069 (2021.01) [H04W 4/029 (2018.02); H04W 12/02 (2013.01); G08G 1/163 (2013.01); H04W 4/40 (2018.02)] 27 Claims
OG exemplary drawing
 
1. A method performed in a processor of a vehicle for providing PathHistory information when broadcasting PathHistory information is not required in Broadcast Safety Messages (BSMs), comprising:
determining whether a pseudonym certificate for the vehicle changed; and
broadcasting BSMs including PathHistory information during a period of time from a time the pseudonym certificate change occurred in response to determining that the pseudonym certificate for the vehicle changed, wherein the period of time is less than the time between pseudonym certificate changes;
wherein prior to broadcasting BSMs including PathHistory information during the period of time from the time the pseudonym certificate change occurred in response to determining that the pseudonym certificate for the vehicle changed, the method further comprising:
determining whether sufficient path history points are available for PathHistory information generation in response to determining that the pseudonym certificate for the vehicle changed;
accumulating path history points in response to determining that sufficient path history points are not available for PathHistory information generation; and
generating PathHistory information in response to determining that sufficient path history points are available for PathHistory information generation.