Abstract: A message transmission method and a message transmission apparatus are provided. The message transmission method includes: obtaining, by a terminal, network congestion control configuration information; processing, by the terminal according to the network congestion control configuration information, a message generated by the terminal, and obtaining the processed message; and sending, by the terminal, the processed message. According to the method, a message generated by the terminal can be processed flexibly to relieve a network congestion problem in the Internet of vehicles.

Abstract: One example method includes obtaining first configuration information, where the first configuration information includes an initial reference time or a scale parameter, determining a current time according to a global navigation satellite system (GNSS) clock, and calculating a transmission timeslot in a device-to-device (D2D) communications system according to the current time and the first configuration information.

Abstract: A power control method, including obtaining, by a UE, configuration information, where the configuration information includes a configuration parameter of at least one secondary carrier (Scell) configured by a base station for the UE; setting, by the UE, an initial power adjustment value of the Scell according to the configuration parameter of the Scell in the configuration information, and controlling, by the UE, transmit power on the Scell according to the set initial power adjustment value of the Scell.

Abstract: A software upgrade method includes a vehicle-mounted terminal device that obtains upgrade requirement information of a software package and a vehicle status corresponding to the vehicle-mounted terminal device, where the upgrade requirement information indicates a first status or a second status. When the vehicle status is associated with the first status, the vehicle-mounted terminal device starts an upgrade of the software package; or when the vehicle status is associated with the second status, the vehicle-mounted terminal device determines not to start an upgrade of the software package.

Abstract: A sensor control method includes: obtaining first indication information, where the first indication information indicates a first scenario; determining a configuration parameter of at least one sensor based on the first indication information, where the configuration parameter is corresponding to the first scenario; and sending the configuration parameter to the at least one sensor. The sensor control method may be applied to automatic driving or intelligent driving, and may be specifically applied to assisted driving or unmanned driving. The sensor can be flexibly controlled through configurable parameters of sensors such as radar or a camera.

Abstract: The present invention relates to the field of the Internet of Vehicles and discloses a data sending method and device. In one example, the method includes: receiving scheduling information sent by a first serving cell, where the scheduling information carries at least a second serving cell identifier of a second serving cell and an available device to device D2D transmission resource in the second serving cell; performing cell synchronization with the second serving cell based on the second serving cell identifier; and sending device to device D2D data on the available D2D transmission resource in the second serving cell according to the scheduling information.

Abstract: Embodiments of the present invention provide a data sending method, a resource measurement method, an apparatus, and a device. The method includes: generating, by user equipment, communication service data; obtaining competitive resource configuration information used for sending the communication service data; determining, according to the competitive resource configuration information, a competitive resource configured for the user equipment; and sending the communication service data on the competitive resource. Compared with a scenario in which all user equipments simultaneously use a same resource, in the present invention, competitive resources are respectively and flexibly configured for multiple user equipments that perform communication services.

Abstract: Embodiments of the present disclosure relate to the communications field, and disclose a method and an apparatus for device-to-device inter-cell interference coordination. The method in the present disclosure includes: receiving, by a first terminal when the first terminal becomes a detection terminal, configuration information sent by a first base station, where the configuration information includes a resource usage detection parameter, and the resource usage detection parameter is used to configure a resource usage detection manner for the first terminal; detecting, by the first terminal based on the resource usage detection parameter, resource usage information corresponding to a resource location; reporting, by the first terminal, the resource usage information to the first base station, so that the first base station adjusts, based on the resource usage information, a D2D data transmission mode for the first terminal or a second terminal using the resource location.

Abstract: This application relates to the field of wireless communications, and in particular, to a resource scheduling technology for vehicle to vehicle communication in a wireless communications system. In a resource scheduling method, a first terminal device receives a second-vehicle message sent by at least one second terminal device, where the second-vehicle message carries vehicle status information of the second terminal device. The first terminal device determines a historical resource occupation status of the at least one second terminal device, and selects, based on the vehicle status information indicating a vehicle location and a traveling status of the second terminal device, a first resource used for sending a first-vehicle message.

Abstract: A message transmission method and a message transmission apparatus are provided. The message transmission method includes: obtaining, by a terminal, network congestion control configuration information; processing, by the terminal according to the network congestion control configuration information, a message generated by the terminal, and obtaining the processed message; and sending, by the terminal, the processed message. According to the method, a message generated by the terminal can be processed flexibly to relieve a network congestion problem in the Internet of vehicles.

Abstract: The present disclosure provides a method of sending a vehicle-to-everything (V2X) service message. The method includes: determining, by a terminal device, a communication path for a V2X service, where the communication path is selected from at least two communication paths, the at least two communication paths include a first communication path and a second communication path, the first communication path is a communication path on which communication is performed using a PC5 interface, and the second communication path is a communication path on which communication is performed using a Uu interface; and sending, by the terminal device, a message of the V2X service by using the communication path. In the foregoing solution, the communication path can be selected from the at least two communication paths, to send the message of the V2X service. In this way, a communication path is flexibly selected for a V2X service.

Abstract: The present invention discloses a D2D synchronization method, user equipment, and a serving cell. The method includes: acquiring, by user equipment, synchronization control information of a serving cell; acquiring an identity of a first synchronization signal sent by a first synchronization source that is obtained through searching on a second transmission carrier frequency, and signal quality of the first synchronization source; determining, according to the identity of the first synchronization signal, the signal quality of the first synchronization source, and the synchronization control information, whether to start to send a synchronization signal; sending, by the user equipment, a second synchronization signal on a third transmission carrier frequency whose frequency is different from a frequency of a carrier frequency of the serving cell, so that a problem of synchronization between different user equipments in a multi-carrier frequency transmission scenario can be resolved.

Abstract: A scheduling request triggering method, apparatus, and system are disclosed. The method includes: obtaining, by a terminal device, an uplink semi-persistent scheduling resource allocated by a base station, where the uplink semi-persistent scheduling resource is used to transmit to-be-transmitted data on a logical channel of the terminal device; receiving, by the terminal device, scheduling request masking set by the base station for a first logical channel; and after determining that a triggering condition is satisfied, triggering, by the terminal device, a scheduling request via the first logical channel. In this way, when a status of data of the terminal device changes, an appropriate scheduling resource can be obtained, so as to ensure timely data transmission.

Abstract: An apparatus and a method for transmitting data are included in a wireless network. The apparatus for transmitting data in a wireless network receives a status data packet sent by an upper layer, where the status data packet includes status information of the transmit end in a current status; discards, when there is a cached previous-status data packet, the previous-status data packet and caches the status data packet, where the previous-status data packet includes status information of the transmit end in a previous status; and sends the status data packet to a receive end when obtaining a sending resource, where the previous-status data packet and the status data packet have a same feature. In this way, a data packet delay is reduced; and in an application scenario of the Internet of Vehicles, timely data exchange between vehicles is ensured, and vehicle driving safety is improved.

Abstract: One example method includes obtaining first configuration information, where the first configuration information includes an initial reference time or a scale parameter, determining a current time according to a global navigation satellite system (GNSS) clock, and calculating a transmission timeslot in a device-to-device (D2D) communications system according to the current time and the first configuration information.

Abstract: A terminal obtains network congestion control configuration information. The terminal processes a message generated by the terminal according to the network congestion control configuration information and obtains the processed message. Then the terminal sends the processed message. Therefore, the message generated by the terminal can be processed flexibly to relieve a network congestion problem in the Internet of vehicles.

Abstract: A synchronous communication method is provided.

Abstract: Embodiments of the present invention provide a method, a device, and a system for determining timing advance grouping, and relate to the field of communications, the method, device and system for determining timing advance grouping. The method includes adding, by a base station (eNodeB), a component carrier (CC) for a user equipment (UE); according to obtained timing advance (TA) group information or a preset rule, determining a TA group that the added CC belongs to, where the TA group is a set of CCs that can share a TA; and sending identification information that identifies the TA group to the UE. Embodiments of the present invention are used to determine TA grouping when the eNodeB adds the CC for the UE.

Abstract: Embodiments of the present invention provide a data transmission method and apparatus, and relate to the communications field. The method includes: obtaining configuration information; establishing at least one logical channel according to an identifier of each logical channel and the corresponding transmission mode indication; obtaining a transmission resource according to the transmission mode indication of a logical channel to which device-to-device (D2D) buffered data belongs; and sending the D2D buffered data by using the obtained transmission resource. A problem that a resource allocation mode used by a terminal during D2D communication is relatively single and is not flexible enough is resolved, and the terminal can use different resource allocation modes according to a logical channel granularity, so that not only consumption of signaling resources of a network device can be reduced, but also QoS requirements of some services that require relatively high QoS can be satisfied.

Abstract: A power control method, including obtaining, by a UE, configuration information, where the configuration information includes a configuration parameter of at least one secondary carrier (Scell) configured by a base station for the UE; setting, by the UE, an initial power adjustment value of the Scell according to the configuration parameter of the Scell in the configuration information, and controlling, by the UE, transmit power on the Scell according to the set initial power adjustment value of the Scell.