Abstract: A voltage conversion circuit, a control method, a power supply device, and a storage medium are provided. The circuit may include a fourth switch module, a third switch module, a first switch module, a second switch module and a ground lead which are sequentially connected in series; a first capacitor connected to a first common terminal and a second common terminal respectively; a second capacitor connected to a power output terminal and a ground lead; a driving module configured to regulate an initial duty ratio of a driving signal for each of the first to fourth switch modules, based on a capacitor voltage of both ends of the first capacitor; and an inductor connected with a power input terminal and a third common terminal respectively, or connected with the third common terminal and the power output terminal respectively.

Abstract: Techniques are described to indicate reference signal port. An example wireless communication method includes determining, by a communication device, a demodulation reference signal (DMRS) port and at least one type of an orthogonal code; and receiving, by the communication device at the DMRS port, a DMRS based on the at least one type of the orthogonal code.

Abstract: A resource determination method and apparatus, a node and a non-transitory computer-readable storage medium are disclosed. The method may include: acquiring, by a first communication node, configuration information configured by a second communication node; and selecting, by the first communication node, a target resource among a plurality of pre-configured resources according to the configuration information, where the pre-configured resources are time and frequency domain resources configured by the second communication node.

Abstract: Disclosed are an image processing method, a cloud server, a Virtual Reality (VR) terminal device, and a storage medium. The method may include: acquiring a first rendered frame and a second rendered frame, wherein the first rendered frame is from the first FOV rendering camera, and the second rendered frame is from the second FOV rendering camera; acquiring difference data from the second rendered frame, wherein the difference data is from an area in the second rendered frame which is not repeated in the first rendered frame; and sending the first rendered frame and the difference data to the VR terminal device such that the VR terminal device restores the second rendered frame according to the first rendered frame and the difference data and obtains a display image according to the first rendered frame and the second rendered frame.

Abstract: Embodiments of the present disclosure provide a method and an apparatus for video processing, and a storage medium and an electronic apparatus. The method comprises: determining a neural network loop filtering enabled flag of a reconstructed video unit; setting, based on the neural network loop filtering enabled flag, an adaptive loop filtering enabled flag for the reconstructed video unit; and signaling at least one type of the following information: filter information related to neural network loop filter of the reconstructed video unit, and filter information related to adaptive loop filter of the reconstructed video unit.

Abstract: Methods, apparatus, and systems that relate to channel demodulation and interference estimation with respect to Demodulation Reference Signal (DMRS) for co-scheduled terminal devices are disclosed. In one example aspect, a method for wireless communication includes receiving, by a first terminal device, a signaling message from a base station scheduling a first transmission from the base station to the first terminal device. The method includes determining, by the first terminal device based on the signaling message, that at least one of the plurality of antenna ports is associated with a second transmission to a second terminal device and demodulating, by the first terminal device, the first transmission from the base station based on the signaling message and the determining.

Abstract: Provided are a frequency-domain data merging method and apparatus, a storage medium, and an electronic apparatus. The method includes: respectively performing up-conversion on baseband data of a plurality of frequency bands in a frequency domain, so as to obtain frequency-domain received data of each frequency band from among the plurality of frequency bands that has been subjected to up-conversion; and merging the frequency-domain received data of each frequency band that has been subjected to up-conversion, so as to obtain merged frequency-domain received data.

Abstract: This document generally relates to a system including wireless access nodes and user devices that communicate with each other via one or more intelligent reflecting devices. An intelligent reflecting device may have a surface covered by a least one metasurface layer configured to filter at least one of incoming signals or outgoing signals. In addition or alternatively, an intelligent reflecting device or a wireless access node may determine which user devices to include in a user group to serve based on telecom operator and/or user identification information communicated to the intelligent reflecting device.

Abstract: A method of communication includes notify, by an optical line terminal (OLT), an optical network unit (ONU) a first time period assigned to a first power saving operation and a second time period assigned to a second power saving operation, and perform, by the OLT, the second power saving operation for a receiver of the OLT during the second time period and the first power saving operation for a transmitter of the OLT during the first time period.

Abstract: A loop filtering method, a video encoding method, a video decoding method, an electronic device, and a medium are provided. The loop filtering method includes: acquiring a first reconstructed video unit processed by a loop filter; performing pixel classification on the first reconstructed video unit; determining a scale factor corresponding to each class; and performing scale adjustment on the first reconstructed video unit according to the scale factor, so as to obtain a second reconstructed video unit.

Abstract: A media information processing method and apparatus, a media information playback method and apparatus are disclosed. The media information processing method may include: acquiring media of a plurality of viewpoints, the plurality of viewpoints include at least one real viewpoint and at least one virtual viewpoint, and the media of the at least one virtual viewpoint is generated according to the media of the at least one real viewpoint; generating a media stream according to the media of the plurality of viewpoints, the media stream is a media file including media information; and performing segmentation and packing of the media stream, and generating a Media Presentation Description (MPD) text of the media, the MPD text includes a description of the real viewpoints and a description of the at least one virtual viewpoint, and the MPD text is used for acquiring media stream information of a viewpoint to be played.

Abstract: Systems, methods and apparatus for achieving a synchronization between a wireless device and a network device are described. One example method includes transmitting, by the wireless device to the network device, a first message indicating a property of a validity timer associated with a synchronization information determined by the wireless device.

Abstract: A method of wireless communication is described. The wireless communication method includes receiving, by a communication device, an antenna port indication; and determining, by the communication device, a first demodulation reference signal (DMRS) port based on the antenna port indication. The first DMRS port is mapped to two resource elements of one physical resource block on one OFDM (Orthogonal Frequency Division Multiplexing) symbol.

Abstract: The present arrangement relates to systems, methods, and non-transitory computer-readable media for receiving a sidelink positioning reference signal (SL-PRS) configuration for a SL-PRS; determining a SL-PRS transmission parameter based on a congestion control parameter; transmitting the SL-PRS using inter-UE coordination (IUC) information; and measuring the SL-PRS within a measurement period.

Abstract: A wireless communication method is disclosed. The method comprises monitoring, by a wireless communication terminal, a physical downlink control channel, PDCCH, during an active time based on at least a low power wake up signal, LP-WUS.

Abstract: Presented are systems and methods for capacity expansion of control channel. A wireless communication device (e.g., UE) may receive a first indication of a physical uplink control channel (PUCCH) resource for PUCCH transmission from a wireless communication node (e.g., BS). The wireless communication device can determine the PUCCH resource to perform the PUCCH transmission.

Abstract: This disclosure generally relates performing UE authentication and registration with the core network, and in particular, to supporting secure interactions between the UE and the target AMF when the UE is re-allocated to the target AMF. During a UE registration procedure, the initial AMF generate a 5G-GUTI for the UE and retrieves a candidate AMF list. The initial AMF sends the generated 5G-GUTI (or 5G-S-TMSI), the candidate AMF list, and a full registration request message to the (R)AN for storage and subsequent use. The initial AMF, once determines an AMF re-allocation is needed, instruct the UE to re-start the registration procedure with the core network, by using the generated 5G-GUTI. The (R)AN selects the target AMF, and forward the stored full registration request message to the target AMF to complete the registration.

Abstract: A wireless communication method includes receiving, by a User Equipment, from a Base Station, two or more downlink control resources corresponding to a same Semi-Persistent Scheduling transmission for multicast servicers. The two or more downlink control resources include a first downlink control resource corresponding to a first downlink resource. The second downlink control resource corresponds to a second downlink resource. In response to receiving two or more downlink control resources, the wireless communication device determines at least one of a first sub-codebook or a second sub-codebook. This determination is based on at least one of first feedback information corresponding to the first downlink resource or the second feedback information corresponding to the second downlink resource.

Abstract: Provided are an uplink signal transmission method and device, a communication node and a storage medium. The method includes determining a transmission mechanism of an uplink signal according to uplink configuration information and transmitting the uplink signal on a target resource according to the transmission mechanism.

Abstract: Presented are systems and methods for communication in passive/semi-passive Internet-of-Things (IoT). A wireless communication node may determine an identification related to a wireless communication device. The wireless communication node may send an authentication instruction message the wireless communication device. The authentication instruction message may comprise the identification related to the wireless communication device and an identification of the wireless communication node.