公开(公告)号：US20220284615A1

公开(公告)日：2022-09-08

申请号：US17746706

申请日：2022-05-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangnan WAN ,  Jianguo WANG ,  Jingxiong GUO

IPC: G06T7/60 ,  G06T7/246 ,  G06V20/56

Abstract: This application discloses a road constraint determining method and apparatus, applied to the intelligent driving field, and in particular, to a sensor in an advanced driver assistance system ADAS or an autonomous driving system, for example, radar and/or a photographing apparatus. In this method, a moving state of a target is determined based on detection information of the target; at least one road geometry of a road on which the target is located is determined based on the detection information of the target; and a road constraint of the target is determined based on the at least one road geometry and the moving state of the target. The road constraint includes at least one of a road direction constraint and a road width constraint. According to the solutions in this application, road constraint determining accuracy can be improved, and target tracking accuracy can be further improved.

公开(公告)号：US20210037490A1

公开(公告)日：2021-02-04

申请号：US17062267

申请日：2020-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guangnan WAN ,  Feng YU ,  Bo LIN ,  Guangwei YU

IPC: H04W56/00 ,  H04W68/00

Abstract: Embodiments of this application provide a communication method and a communications apparatus. The communication method includes: sending, by a terminal device, a first indication message, where the first indication message is used to indicate a first time type and/or a first time precision, or the first indication message is used to indicate an access network device to send time information to the terminal device; receiving, by the terminal device, the time information; and synchronizing, by the terminal device, a time of the terminal device based on the time information. Correspondingly, a communications apparatus is further provided. According to the embodiments of this application, the terminal device can obtain, based on requirements of different application scenarios, a time type and/or time precision preferred (prefer) by the terminal device.