The present disclosure relates to positioning methods, systems, and apparatuses. One example method includes receiving, by a server, a first message from a first terminal device, where the first message includes first location information determined by the first terminal device, determining, by the server, a first reference object based on the first location information, and sending, by the server, a second message to the first terminal device, where the second message includes identification information of the first reference object, and the identification information of the first reference object is used by the first terminal device to update the first location information.

The present disclosure relates to positioning methods, systems, and apparatuses. One example method includes receiving, by a server, a first message from a first terminal device, where the first message includes first location information determined by the first terminal device, determining, by the server, a first reference object based on the first location information, and sending, by the server, a second message to the first terminal device, where the second message includes identification information of the first reference object, and the identification information of the first reference object is used by the first terminal device to update the first location information.

A remote control system for a vehicle having an onboard vehicle controller for controlling vehicle functions and a mobile radio remote control, connected to the vehicle controller in a signal-transmitting manner, for remotely controlling the vehicle functions according to a location of the radio remote control relative to the vehicle. The vehicle controller and the radio remote control each have at least one antenna for wireless signal transmission between the vehicle controller and the radio remote control. The antenna of the radio remote control has a direction-dependent antenna characteristic. At least one spatial position of the antenna of the radio remote control can be determined automatically by a position sensor device of the radio remote control, and an automatic determination of a distance or spatial location of the radio remote control relative to the vehicle can be processed according to the determined spatial position of the antenna.

A remote control system for a vehicle having an onboard vehicle controller for controlling vehicle functions and a mobile radio remote control, connected to the vehicle controller in a signal-transmitting manner, for remotely controlling the vehicle functions according to a location of the radio remote control relative to the vehicle. The vehicle controller and the radio remote control each have at least one antenna for wireless signal transmission between the vehicle controller and the radio remote control. The antenna of the radio remote control has a direction-dependent antenna characteristic. At least one spatial position of the antenna of the radio remote control can be determined automatically by a position sensor device of the radio remote control, and an automatic determination of a distance or spatial location of the radio remote control relative to the vehicle can be processed according to the determined spatial position of the antenna.

A communication device includes: a control unit configured to control a process of transmitting a first ranging signal, receiving a second ranging signal transmitted as a response to the first ranging signal from another communication device receiving the first ranging signal, and transmitting a data signal including regulation information regarding a transmission time of the first ranging signal and a reception time of the second ranging signal, wherein the data signal is transmitted and received in conformity with a first wireless communication standard, and wherein the first and second ranging signals are transmitted and received in conformity with a second wireless communication standard more appropriate for ranging than the first wireless communication standard.

A method for dynamic group management. The method which may be performed by a vertical application layer server comprises receiving first dynamic information for a group of communication devices from a group management server. The method further comprises transmitting second dynamic information for the group of communication devices to an application specific server, based at least in part on the first dynamic information for the group of communication devices. In some instances, the application specific server may get the dynamic information about group membership effectively during dynamic group management.

A method for dynamic group management. The method which may be performed by a vertical application layer server comprises receiving first dynamic information for a group of communication devices from a group management server. The method further comprises transmitting second dynamic information for the group of communication devices to an application specific server, based at least in part on the first dynamic information for the group of communication devices. In some instances, the application specific server may get the dynamic information about group membership effectively during dynamic group management.

A method for transmitting downlink control information (DCI) includes: transmitting DCI based on modulation coding strategy (MCS) corresponding to user equipment (UE); in which the DCI includes a first-type DCI or a second-type DCI, the first-type DCI includes a first MCS field and a first repeating number indication field; and the second-type DCI includes a second MCS field and a second repeating number indication field.

Various embodiments provide methods, vehicle computing devices, storage media, and systems for briefly providing PathHistory information in Broadcast Safety Messages (BSMs) sent from a vehicle when PathHistory information is not required to be included in all BSMs. Various embodiments may include broadcasting BSMs including PathHistory information during a period of time following a change of the vehicle's pseudonym certificate and broadcasting BSMs without PathHistory information at all other times. Some embodiments may further include determining whether sufficient path history points are available for PathHistory information generation, accumulating path history points in response to determining that sufficient path history points are not available for PathHistory information generation, and broadcasting BSMs including PathHistory information during the period of time once sufficient path history points have been accumulated.

Embodiments of this application provide a Bluetooth connection method, a system, and an electronic device. In the method, when a communication connection between an electronic device and a vehicle head unit is disconnected, the electronic device starts to scan a Bluetooth advertising signal. When a user carrying the electronic device is close to the vehicle head unit, the electronic device may obtain, through scanning, a Bluetooth advertising signal sent by the vehicle head unit. When obtaining, through scanning, the Bluetooth advertising signal sent by the vehicle head unit, the electronic device may start a vehicle manufacturer application when the vehicle manufacturer application is cleared by a system. The electronic device may reconnect to the vehicle head unit through Bluetooth by using the vehicle manufacturer application and a Bluetooth chip. Embodiments of this application can improve convenience of unlocking in a scenario in which a vehicle is insensibly unlocked.