Abstract: The present disclosure relates to operation, administration and maintenance (OAM) data transmission methods and apparatuses. One example method includes obtaining, by a first node, a first data flow of a client. The first node inserts an OAM data block in the first data flow of the client to obtain a second data flow of the client, where the OAM data block is a 64B/66B code block that carries OAM data. The first node distributes the second data flow of the client to at least one slot of a channel corresponding to the client.

Abstract: An oscillator circuit is provided. The oscillator circuit includes a first oscillator, a second oscillator, and a switch matrix. The first oscillator includes a first transconductance amplifier, a second transconductance amplifier, and a first resonator. The second oscillator includes a third transconductance amplifier, a fourth transconductance amplifier, and a second resonator. The first resonator includes a first capacitor element and a first inductor element. The second resonator includes a second capacitor element and a second inductor element. The first inductor element is coupled to the second inductor element. The switch matrix includes a first switch, a second switch, a third switch, and a fourth switch.

Abstract: Embodiments of this application provide an electronic device and a picture processing method. The electronic device includes a rear cover, a front-facing camera, a rear-facing camera, and a light reflective apparatus. The light reflective apparatus may be switched between a usage state and an idle state. The picture processing method includes: controlling the light reflective apparatus to switch from the idle state to the usage state, so that the rear-facing camera captures a picture reflected by the light reflective apparatus; separately obtaining a picture captured by the front-facing camera and a picture captured by the rear-facing camera; processing the picture captured by the rear-facing camera; and fusing the picture captured by the front-facing camera and a picture obtained by processing the picture captured by the rear-facing camera. In this application, a field of view of a picture taken by the front-facing camera can be increased with relatively low costs.

Abstract: The disclosure concerns a communication device comprising a housing with a front body and a main body. The front body comprises a display unit having a plurality of layers attached to one another. The plurality of layers comprises a suspension layer and a second layer, wherein one of the layers is a display. At two opposing edges of the suspension layer, the suspension layer extends laterally beyond at least the second layer. The suspension layer is suspended by attachment of the two opposing edges to the main body. By extending the suspension layer laterally beyond at least the second layer of the plurality of layers and by attaching the suspension layer to the main body, the entire display unit is efficiently suspended and is movable up and down in a manner efficient for the emission of sound.

Abstract: A method of point cloud coding (PCC) implemented by a decoder is provided. The method includes receiving, by a receiver of the decoder, a bitstream containing a patch rotation enabled flag and atlas information for a two dimensional (2D) patch; determining, by a processor of the decoder, that the 2D patch is capable of being rotated based on the patch rotation enabled flag; rotating, by the processor, the 2D patch; and reconstructing, by the processor, a three dimensional (3D) image using the atlas information and the 2D patch as rotated.

Abstract: A method of decoding a coded video bitstream implemented by a video decoder is disclosed. The method includes determining that a coded video sequence (CVS) of the coded video bitstream includes a video coding layer (VCL) network abstraction layer (NAL) unit having a gradual decoding refresh (GDR) network abstraction layer (NAL) unit type (GDR_NUT), the VCL NAL unit having the GDR_NUT containing a GDR picture; initiating decoding of the CVS at the GDR picture; and generating an image according to the CVS as decoded. A corresponding method of encoding is also disclosed.

Abstract: A method of establishing streams within a QUIC connection implemented by a first network device, comprising: transmitting a first open message through the QUIC connection to a second network device, the first open message identifying a protocol; receiving a second open message through the QUIC connection from the second network device in response to transmitting the first open message, the second open message identifying the protocol; and establishing a first stream between the first network device and the second network device within the QUIC connection for the protocol identified in the first open message and in the second open message.

Abstract: A device for managing subscriptions of subscribers stores subscription entries. Each subscription entry includes information indicating data of interest in a first part, and includes subscriber information related to subscribers of the data of interest in a second part. Moreover, a subscription entry of the subscription entries includes in its second part subscriber information related to at least two subscribers of the data of interest indicated by the information in the first part. The device further provides the data of interest indicated by the information in the first part of the subscription entry to the at least two subscribers associated with the subscriber information in the second part.

Abstract: A routing method, apparatus, and system, related to the field of communications technologies, to update a routing indicator in a subscription concealed identifier when a user is migrated to a new unified subscriber data management UDM network element and the routing indicator in the subscription concealed identifier changes. The method includes: sending, by an authentication server function AUSF network element, a first authentication vector obtaining request to a first unified data management UDM network element; and if the AUSF network element receives a routing indicator RI sent by the first UDM network element, sending the RI to an access and mobility management function AMF network element. The method is applied to a process in which a terminal updates the RI.

Abstract: A first terminal device obtains a first parameter related to a first air interface, and then determines, based on the first parameter, that first frequency information of a second air interface has a highest priority, where the first air interface is a radio interface between the first terminal device and a second terminal device, and the second air interface is a radio interface between the first terminal device and a network device.

Abstract: This application provides a drive and a data transmission method, to implement low-latency transmission. The drive includes a CDR circuit, an elastic buffer, a receiver circuit, and a transmitter circuit. The CDR circuit is configured to recover a receive clock from a received signal. The receiver circuit is configured to recover sent data from the received signal by using the receive clock. The elastic buffer is configured to move the sent data in by using the receive clock and move the data out by using the receive clock. The transmitter circuit is configured to send the sent data from the elastic buffer by using the receive clock.

Abstract: Embodiments of the present invention disclose a communication method and apparatus. The method includes: After receiving, from a network device, information about K uplink data channels for repeating a data packet for K times and information about a first time domain resource for transmitting first uplink control information UCI, in a case in which the first time domain resource overlaps a first uplink data channel of the K uplink data channels in time domain and the first uplink data channel is overloaded, a terminal device determines a physical resource for transmitting the first UCI, and then sends the first UCI to the network device by using the determined physical resource.

Abstract: The present disclosure provides a method of video coding implemented in a decoding device or an encoding device, the method comprising: determining a block size of a current coding block, the current coding block being coded in intra prediction mode; selecting, based on the determined block size of the current coding block, a sub-partitioning rule that determines a number of sub-partitions and a partition direction into which the current coding block is to be divided; and dividing the current coding block into sub-partitions based on the selected sub-partitioning rule.

Abstract: This application provides data transmission methods, devices, and systems. In one implementation, a method comprises: receiving, by a central device of a wireless network, at least one first data packet sent by a remote device of the wireless network, wherein each of the at least one first data packet comprises a sequence number indicating a relative location of a payload of the corresponding first data packet in a second data packet; reordering, by the central device, the at least one first data packet, based on the sequence number of each of the at least one first data packet, to obtain the second data packet; and sending, by the central device, the second data packet.

Abstract: A conference recording method includes: A multipoint control unit determines, based on feature information of a person, an audio video bitstream that needs to be recorded, from audio video bitstreams sent by site terminals. The feature information includes picture information or sound information. The multipoint control unit sends, to a recording server, the audio video bitstream that needs to be recorded, so that the recording server performs conference recording. The feature information of the person is used to implement automatic screening on the audio video bitstream that need to be recorded.

Abstract: This application provides a method, which includes: receiving, by a terminal side device, physical layer signaling sent by a network side device in a first frequency band; and determining, by the terminal side device, a sequence number of a first time transmission unit in a second frequency band, where the first time transmission unit includes a time resource indicated by the physical layer signaling, the sequence number of the first time transmission unit is greater than or equal to a sequence number of a second time transmission unit in the second frequency band, an end time of the physical layer signaling is within a time range of the second time transmission unit, and a subcarrier spacing of the first frequency band is different from a subcarrier spacing of the second frequency band.

Abstract: A method for picture or video encoding, wherein a block of residual signal is being subsampled before transform, quantization and residual coding, comprising obtaining a residual signal from an original picture and a predicted block; obtaining a subsampled block from samples of a near-boundary region of a block of residual signal, wherein the subsampled block has a smaller size than the block of residual signal; performing forward transform over the subsampled block; performing quantization over the subsampled block to obtain a subsampled quantized residual block; performing residual coding of the subsampled quantized residual block; obtaining a subsampled reconstructed residual block by inverse quantization and inverse transform of the subsampled quantized residual block; obtaining a reconstructed residual block by filling samples of the near-boundary region of the reconstructed residual block from the subsampled reconstructed residual block; and obtaining a reconstructed block from the predicted block and t

Abstract: This disclosure discloses signal configuration methods and apparatuses. In an implementation, a method comprises: generating at least two reference signals of a same type corresponding to at least two antenna ports indicated to a terminal device, wherein the at least two reference signals comprise a first reference signal and a second reference signal, wherein a first sequence of the first reference signal is obtained based on a first initialization factor determined based on an index of a first code division multiplexing (CDM) group, and wherein a second sequence of the second reference signal different from the first sequence is obtained based on a second initialization factor determined based on an index of a second CDM group; and transmitting the at least two reference signals.