Huawei Technologies Co., Limited

Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Xuehuan Wang

Pengxin Bao

Chao Li

Lei Wan

Yongxia Lv

Xin Xiong

Jie Sun

Jianjun Yang

Chunhui Zhu

Xingxin Zhang

Zongming Yao

Xiujiang Ma

Phillip Barber

Jiezuo Zhu

Kaidi Huang

Qiyong Zhao

Junxian Mo

Guorui Yang

Chenggang Jiang

Philip Barber

Shunyu Wang

Jiu Yin

This disclosure discloses image transmission methods and apparatuses. In an implementation, a method performed by an apparatus includes generating a first data packet, wherein the first data packet comprises a portion of content of a frame of an image and first information indicating frame synchronization and line synchronization and sending the first data packet to a second communications apparatus.

Image transmission method and apparatus

A PCIe-based communications method includes: a root complex writes identity information of a second node into a first node and writes routing table information into a third node, where the first node is a source node of first data, the second node is a destination node of the first data, and the third node is a node through which the first data arrives at the second node.

PCIe-based communications method and apparatus

A data transmission method according to an I2C protocol and a transmission apparatus includes: a first transmission chip obtains I2C data from a first device, wherein the I2C data is data sent by the first device to a second device. The first transmission chip sends first feedback information to the first device, wherein the first feedback information is used to indicate whether the I2C data is successfully received. The first transmission chip forwards the I2C data to a second transmission chip corresponding to the second device. The first transmission chip receives second feedback information from the second transmission chip, and the second feedback information is used to indicate whether the I2C data is successfully received. The first transmission chip stores the second feedback information in a first storage space that is storage space of the first transmission chip.

Data transmission method according to inter-integrated circuit protocol and transmission apparatus

An emergency call method is applied to a vehicle-mounted communications system. The emergency call method includes a telematics box activating a host function. The host function includes controlling a first transmission node and a peripheral connected to the first transmission node. The telematics box is connected to the first transmission node, and the telematics box performs data transmission with the first transmission node using the host function. The first transmission node is in a master node mode.

Communication method and apparatus, and system

A control method includes, after determining a target device to be controlled, a host sends indication information, a control command, and an address of a register of the target device to a control device through an Inter-Integrated Circuit (I2C) interface, so that the control device encapsulates the indication information, the control command, and the address of the register of the target device, and sends the indication information, the control command, and the address of the register of the target device that are encapsulated to a slave device connected to the control device.

Control method and apparatus

This application provides an in-vehicle communications system used in a vehicle. The in-vehicle communications system includes a control device, a plurality of gateway devices, and a plurality of communication endpoints. Each gateway device is communicatively coupled to the control device, and each gateway device is communicatively coupled to at least two other gateway devices. Each gateway device is further communicatively coupled to at least one communication endpoint. A gateway device or a controller is configured to: when receiving communication data of end-to-end communication, route the communication data by using a first communication link indicated by a local routing policy, and if the first communication link is abnormal, route a part or all of the communication data by using a second communication link. The system may be used in the field of assisted driving and self-driving.

In-vehicle communications system, in-vehicle communication method, and device

Embodiments of this application disclose a data processing method, which can be applied to a clock synchronization network system. The system can correct, based on a clock frequency error or a time error, a data timestamp of a data packet collected by the system in a time period in which there is no reference clock, so that a corrected system time of the data packet is consistent with a reference time. This improves accuracy of data record.

Data processing method and apparatus

Embodiments of this application disclose a data transmission method and a communications apparatus. A method in an embodiment includes: sending, by a network device, first data to a terminal in a first subframe through a first channel, where the first channel is a channel occupied in a channel system by a service between the network device and the terminal; performing, by the network device, channel listening on a channel that is not occupied in the channel system by the service; and when there is a second channel in an idle state, sending, by the network device, second data of the service to the terminal in a second subframe through the first channel and the second channel, where the second subframe is after the first subframe. The service includes the first data and the second data, and a data frame of the service includes the first subframe and the second subframe.

Data transmission method and communications apparatus

An emergency call method applied to a vehicle-mounted communications system and the method includes a telematics box that activates a host function. The host function includes controlling a first transmission node and a peripheral connected to the first transmission node. The telematics box is coupled to the first transmission node, and the telematics box may perform data transmission with the first transmission node using the host function. The first transmission node is in a master node mode.

Emergency call method and apparatus, and system

Embodiments provide a method for accessing a wireless local area network, a station, and an access point. The method includes: receiving, by a station, a beacon or a probe response from an access point, where the beacon or the probe response carries configuration version information; and executing, by the station, a GAS query according to the configuration version information carried in the beacon or the probe response. In embodiments, the access point sends the configuration version information to the station, so that the station executes the GAS query according to the configuration version information.

Wireless local area network, station, and access point and methods for accessing thereof

Embodiments of the present invention provide a method for accessing a wireless local area network, a station, and an access point. The method includes: receiving, by a station, a beacon or a probe response from an access point, where the beacon or the probe response carries configuration version information; and executing, by the station, a GAS query according to the configuration version information carried in the beacon or the probe response. In the embodiments of the present invention, the access point sends the configuration version information to the station, so that the station executes the GAS query according to the configuration version information, thereby improving access efficiency.

Embodiments of the present invention provide a network offload method and apparatus, where the method includes: receiving, by a first network controller, network state information of a terminal, where there is at least one terminal, the network state information is state information of the terminal on at least one corresponding access network, and the first network controller is a network controller of a first access network; generating, by the first network controller, an offload policy for the terminal according to the network state information; and sending, by the first network controller, the offload policy to the terminal; and/or sending the offload policy to an access device of the at least one access network, so that a network-side device or the terminal performs offload according to the offload policy and the network side can implement control on terminal offloading.

Network offload method and apparatus

The present disclosure discloses a method, a device and a system for performing NAV control on a node and a node. The method includes: updating a local NAV value to a preset first value when it is determined that a preset first field of a monitored MAC frame carries a first identity, wherein the first value is less than a current local NAV value and the MAC frame of which the preset first field carriers the first identity is transmitted by a TXOP responder after receiving a last MAC frame transmitted by a TXOP holder. The method, device, system and node may enable a hidden station to enter a channel access competition state timely, thereby solving a problem of regional discrimination of a station.

Method, device and system for performing NAV control on node and node

The present invention provides a network access point, a network controller, a network device, and a load control method thereof. The load control method includes: setting, by a network device, an access condition for accessing a first network by a terminal; receiving, by the network device, a first signal from the terminal, and obtaining a measurement parameter of the terminal according to the first signal; and if the measurement parameter of the terminal satisfies the access condition, sending, by the network device, a second signal to the terminal, so as to allow the terminal to access the first network, wherein the measurement parameter is a signal strength of the terminal and/or a terminal distance of the terminal. By using the foregoing manner, the present invention can improve spectral efficiency of a network access point.

Network access point, network controller, network device, and load control method thereof

In embodiments, a UE notifies an AP of information about a home operator of the UE; and the AP determines whether the home operator of the UE uses a hotspot virtualization technology on the AP, and if the home operator uses the hotspot virtualization technology on the AP, sends the information about the home operator of the UE as information about the AP access service operator to the UE, so that in a case in which the home operator of the UE and the AP access service operator are different, the UE considers the AP access service operator as the home operator of the UE and therefore preferentially selects a network of the home operator to access a communications network by using the AP.

Growing community of inventors

Chengdu, China

Xuehuan Wang