An operation method of a first communication node in an Ethernet-based vehicle network includes: generating a data message including data when there is data to be transmitted to a second communication node belonging to the Ethernet-based vehicle network; and transmitting the data message to the second communication node. The data message further includes a first indicator indicating a type of the data and a second indicator indicating an encoding scheme applied to the data, such that a vehicle network even in an existing vehicle can support transmission and reception of information for the new IT service, and the performance of the vehicle network can be improved.

The technology of this application relates to the field of wireless fidelity (Wi-Fi) technologies, and provides a method for transmitting a physical layer protocol data unit, a method for transmitting a trigger frame, and an apparatus, to resolve a problem that it is difficult to ensure data transmission reliability of an extremely high throughput physical layer protocol data unit (PPDU) for multi-user transmission in a low power indoor (LPI) operation mode in the conventional technology. The method includes: An access point generates an extremely high throughput multiple user physical layer protocol data unit (EHT MU PPDU), where the EHT MU PPDU includes a resource unit allocation subfield indicating resource unit allocation of a plurality of stations, and a resource unit corresponding to at least one of the plurality of stations is used for duplicate transmission; and sends the EHT MU PPDU.

Embodiments of this application provide a packet transmission method and apparatus, and relate to the field of communication technologies. When the packet transmission method is applied, a first packet may be determined by using a first device, where packet fields of the first packet include an authentication identifier field, an authentication code field, and at least one candidate authentication field, and the authentication identifier field indicates a field that is in the at least one candidate authentication field and that corresponds to the authentication code field; and then the first packet is sent.

A data transmission controller is configured to generate one or more data transmission packets according to the modified QUIC protocol by generating one or more fields in the one or more data transmission packets to have a fixed field-size and generating a predefined number of frames of different frame-types in a predefined frame-type order in the one or more data transmission packets. The data transmission controller enables hardware Offload variant of the QUIC protocol for efficient hardware implementations of the modified QUIC protocol.

The present disclosure relates to communication methods and apparatuses, and relates to the field of communication technologies. In one example method, a first communication apparatus generates a physical layer protocol data unit (PPDU), and sends the PPDU to a second communication apparatus. The PPDU includes a first field with 26 bits, and the first field includes a one-bit unsolicited modulation and coding scheme (MCS) feedback (MFB) subfield and a one-bit first indication information. When a value of the unsolicited MFB subfield is a first value, the first indication information indicates an MCS request (MRQ). When a value of the unsolicited MFB subfield is a second value, the first indication information indicates an uplink extremely high throughput trigger-based PPDU MFB (UL EHT TB PPDU MFB).

Methods, systems, and devices for determining a subset of users from among a set of users based on a set of received information associated with a photograph, where the disposition of the information is used to first determine the subset and then perform facial recognition on the subset of photographs for each user in order to accurately identify each user or users present in the photograph.

Methods, systems, and devices for determining a subset of users from among a set of users based on a set of received information associated with a photograph, where the disposition of the information is used to first determine the subset and then perform facial recognition on the subset of photographs for each user in order to accurately identify each user or users present in the photograph.

According to a communication method, a local device and a peer device notify each other through a border gateway protocol (BGP) message whether the local device and the peer device have a control word processing capability. When the peer device also has a control word processing capability, the peer device uses a service packet to carry a control word. When the local device has no control word processing capability, no control word is carried when the peer device sends a service packet to the local device.

Provided are a data processing method and apparatus for a client. The data processing method for a client includes: acquiring protocol data from a server, where the protocol data is formed from transmission data encapsulated in a set protocol by the server; parsing the protocol data to obtain the set protocol; identifying a protocol header, a protocol body and a protocol exception-processing part of the set protocol; and processing the protocol data according to the protocol header, the protocol body and the protocol exception-processing part.

A data transmission method in an optical transport network includes: mapping first-type service data to a payload block at a specific location in a plurality of consecutive payload blocks, where the plurality of consecutive payload blocks occupy a payload area of an optical data unit (ODU) frame; mapping second-type service data to a payload block at any location in the plurality of consecutive payload blocks other than the at least one specific location; mapping the ODU frame to an optical transport unit (OTU) frame or a flexible OTN (FlexO) frame; and sending the OTU frame or the FlexO frame. In an applicable scenario, service data is transmitted in a hybrid manner.