287 results about "Unicast" patented technology

Methods, apparatus, and systems for providing multicast handover are disclosed. In one example aspect, the method includes receiving, by a target radio access node (T-RAN) from a source radio access node (S-RAN) or from an access and mobility management function (AMF), a handover request including a multicast or broadcast context for a handover of a multicast and broadcast service (MBS) to the T-RAN. The method further includes binding a shared tunnel for the MBS and a flow in a unicast protocol data unit (PDU) session in a case that an MBS session identified in the multicast or broadcast context has already been established at the T-RAN, and sending, to an AMF, a message including a handover request acknowledgment or a path switch.

The present disclosure relates to a data transmission method, a UE and a network node. The method performed by a network node includes: configuring a first and / or second radio channel for a first PDU session, or configuring a first and / or second radio channel for at least one same QoS flow of a first PDU session. The first radio channel is configured to transmit first data to a UE; the second radio channel is configured to transmit second data to the UE; the first and second radio channels are one of a unicast radio channel, a broadcast or multicast radio channel; the first data represents first data of the first PDU session or first data of at least one QoS flow of the first PDU session; the second data represents second data of the first PDU session or second data of at least one Qos flow of the first PDU session.

In some examples, a vehicular battery management system (BMS) comprises a set of battery cells and a secondary network node coupled to the set of battery cells. The secondary network node is configured to wirelessly receive, in a first slot of a super frame, a unicast downlink packet from a primary network node, the unicast downlink packet addressed to the secondary network node. The secondary network node is also configured to wirelessly transmit, in a second slot of the super frame and responsive to the unicast downlink packet, an uplink packet to the primary network node.

Methods, systems, and apparatuses may assist scheduling for broadcast and groupcast on new radio Uu interface. In an example, there may be broadcast and groupcast transmission scheduling mechanism with: group based scheduling, UE specific based scheduling, or sub-group based scheduling. In another example, there may be a serving cell configuration for broadcast and groupcast transmission with dedicated cell for broadcast and groupcast, or broadcast and groupcast cell which is shared with the cell for unicast. In another example, there may be downlink control related configuration for broadcast and groupcast transmission with details of the BWP configuration, the CORESET configuration, or the search space configuration.

A system and a method in a wireless communication network are disclosed to reduce a power consumption of a Multicast and Broadcast Services (MBS) device. The device includes an interface to the wireless communication network that receives wireless communications from the wireless communication network, and a controller. The controller controls the interface to receive unicast communications in a bandwidth part (BWP) of the wireless communication network and to receive MBS communications in a common frequency resource (CFR) of the wireless communications. The controller further controls the interface by selectively receiving MBS communications in the CFR to reduce a frequency bandwidth of the interface, or a combination thereof, to reduce a power consumption of the device.

This disclosure provides details of a configuration signaling and associated behaviors for sidelink (SL) discontinuous reception (DRX) for unicast, connection-specific DRX. According to one embodiment, a first user equipment (L E) configures link-specific discontinuous reception (DRX) by processing a common DRX configuration that is preconfigured, received through a Uu interface, or received in a SIB; and signaling over a PCS interface with a second UE, a link-specific configuration for a link-specific DRX cycle, the Link-specific configuration including a link-specific on-duration parameter.

A wireless device determines to assign a same beam management identifier to a first unicast link of a first wireless device and a second unicast link of a second wireless device, based on measurements associated with the first unicast link and the second unicast link. The wireless device transmits, based on determining to assign the same beam management identifier to the first unicast link and the second unicast link, an indication of the same beam management identifier to the first wireless device and the second wireless device. The wireless device transmits, to the first wireless device and the second wireless device, a sidelink transmission including: a field value indicating the same beam management identifier, and one or more sidelink reference signals for beam management of the first unicast link and the second unicast link.

A communication method, a device, and a system are applied to a scenario in which a first terminal device moves from a source access network device to a target access network device with a multicast service delay caused by handover between access network devices. The communication method includes that the source access network device sends a first identifier to the target access network device, where the first identifier is for identifying a first multicast service. Correspondingly, the target access network device receives the first identifier, and determines a transmission mode including a unicast mode or a multicast mode for transmitting data of the first multicast service between the target access network device and the first terminal device, and sends wireless configuration information corresponding to the transmission mode to the first terminal device through the source access network device.

Apparatuses, methods, and systems are disclosed for sidelink discontinuous reception configuration. One method includes initiating, by a first user equipment, a sidelink unicast establishment procedure with a second user equipment. The method includes performing sidelink communication using a predetermined sidelink discontinuous reception configuration during the sidelink unicast establishment procedure. The method includes, in response to receiving a direct communication accept message, performing sidelink communication based on a set of sidelink discontinuous reception configurations.

An overall architecture to integrate multicast and broadcast service into a general 5G core network. The architecture may provide methods and systems to switch the delivery mode of transmitting messages to User Equipment (UE)s from a unicast mode to a multicast mode. The method includes triggering events at UE, network functions, content provider or RAN node to initiate the switch process; a procedure for UE initiated switch from unicast to multicast; a procedure for network-initiated switch from unicast mode to multicast mode; and a procedure for RAN initiated switch from unicast mode to multicast mode. The architecture may also provide methods to switch the delivery mode from multicast mode to unicast mode. These methods may include triggering events at UE, network functions, content provider or RAN node to initiate the switch process; a procedure for UE initiated switch from multicast mode to unicast mode; a procedure for network-initiated switch from multicast mode to unicast mode; and a procedure for RAN initiated switch from multicast mode to unicast mode.

The invention relates to the technical field of satellite-borne edge computing, and provides a satellite-borne distributed efficient data distribution system which comprises a computing processing module which is provided with a DDS and is used for processing satellite-borne computing tasks; the containerization module is used for packaging the application program and the DDS into a container; the dynamic unicast routing module is used for carrying out data routing among heterogeneous equipment and planning a data transmission path so as to deal with the situation that links are uncertainly connected and disconnected in a complex space environment; the ddrouter virtual multicast routing module is used for realizing forwarding of multicast routing by software and overcoming the dependence of a DDS service discovery stage on a hardware multicast routing function under a multi-hop network; the QoS configuration module is used for flexibly configuring QoS and multiple transmission modes to adapt to data stream transmission requirements under different task scenes; and the distributed consistency guarantee module is used for keeping the satellite data consistency through leader election and a log replication mechanism. The method aims to solve the problems of low data distribution efficiency, poor consistency, difficulty in heterogeneous adaptation and the like in a satellite-borne edge computing scene.

The invention provides a video data WLAN (Wireless Local Area Network) transmission monitoring method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring data buffer time of a video sending end; performing superframe difference processing on the data buffer time and preset buffer time to obtain a buffer time difference; and sending a data retransmission loss signal to the video receiving end according to the cache time difference so as to adjust a retransmission request mode of the video sending end. Generally, video data transmission adopts a broadcast mode to send data packets, when frame number loss exists, supplementary transmission is carried out according to current buffer area data, specifically supplementary transmission is carried out in a unicast mode so as to make up the packet loss condition of opposite terminal equipment during broadcasting, and when retransmission is carried out, retransmitted fragmented packets are not received within the time range of one frame, the time range of one frame is not received. And if yes, stopping retransmission and discarding the fragmented packet so as to ensure low delay and reliability during video data transmission and further ensure the video data transmission quality.

The present disclosure provides a transmission method, device and storage medium for VR live video, relating to the technical field of communication, wherein the method comprises: performing encoding processing on video data transmitted by a VR live source to generate fragmented encoding data; performing encoding processing on the fragmented encoding data to generate panoramic encoding data and main perspective encoding data; performing encapsulation processing on the panoramic encoding data, the main perspective encoding data, unicast fragmented data index information and audio to generate a multicast stream and add a PMT table; transmitting the multicast stream in a multicast group, and when receiving a unicast switching request transmitted by a terminal in the multicast group based on the PMT table, transmitting unicast fragmented data corresponding to the unicast switching request to the terminal. The method, device and medium of the present disclosure can be combined for transmission by using multicast and unicast, save network bandwidth, take advantage of operator multicast bearing, reduce CDN bearing cost, be compatible with multiple types of terminals, and improve user experience.

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. According to various embodiments of the disclosure, a method performed by a transmitting apparatus in a wireless communication system can be provided. The method can include the steps of transmitting first control information via a physical downlink control channel (PDCCH), the first control information being used for scheduling a group common-physical downlink shared channel (GC-PDSCH) via which data is multicast, the first control information including information related to a hybrid automatic repeat request (HARQ) feedback for the multicast data, and transmitting second control information via the PDCCH, the second control information being used for scheduling a physical downlink shared channel (PDSCH) via which data is unicast, the second control information including information related to a HARQ feedback for the unicast data.

The application provides a power control parameter determination method and device. The method comprises: a terminal acquiring relevant parameters of unicast and relevant parameters of multicast; and the terminal determining a power control parameter of a physical uplink control channel (PUCCH) according to the relevant parameters of unicast and the relevant parameters of multicast. According to the embodiment of the application, the terminal determines the power control parameter of the PUCCH channel used for transmitting the HARQ-ACK codebook of the broadcast multicast according to the relevant parameters of unicast and the relevant parameters of multicast, so that the terminal can better perform power control, thereby realizing power efficiency maximization, meeting the demand of PUCCH transmission power requirement, and saving power.

Aspects of the disclosure relate to sidelink (SL) discontinuous reception (DRX) techniques. A first device may determine SL DRX configuration parameters for SL communication between the first device and a second device. The SL DRX configuration parameters include a plurality of first transmission durations and a plurality of first DRX on-durations, the plurality of first transmission durations include times during which the first device is permitted to transmit via SL communication to the second device and the plurality of first DRX on-durations include times during which the first device monitors for SL communication from the second device. The first device may, at least one of, monitor for SL communication from the second device during at least one of the plurality of first transmission durations, or transmit via SL communication to the second device during at least one of the plurality of first DRX on-durations.

Methods, systems, and devices for wireless communications are described. A method may include identifying, by a first user equipment (UE), a schedule associated with the first UE and a second UE of the group of UEs in direct communications with the first UE. The schedule may include an awake period reserved for directional communications between the first UE and the second UE. The first UE may manage the awake period reserved for the directional communications based on traffic information associated with the first UE, and may communicate with the second UE in accordance with the managing. The awake period reserved for directional communications may include an awake period reserved for uni-directional communications or an awake period reserved for bi-directional communications.

This invention discloses a game display screen chassis, including a chassis shell with a display mounting port on the surface and a display component mounted thereon. A surrounding light source mounting slot is provided outside the display mounting port, and an indicator light source component is disposed inside. A control circuit component is located on the back of the display component. The control circuit component controls the indicator light source component to change lighting effects according to the game status, coordinating with the displayed screen to enhance interactivity and visual atmosphere. The display component consists of a mounting bracket, a display screen, and an explosion-proof glass plate, which provides protection. The indicator light source component consists of a light strip and a lens, with the lens softening and diffusing the light. The control circuit component has a built-in software system that builds a local area network communication network based on the UDP protocol, adopts a distributed architecture, and all nodes have peer-to-peer communication capabilities, supporting broadcast, multicast, and unicast communication. Data interaction is performed using JSON format, and a master-controlled state synchronization mechanism enables real-time collaborative display and multi-screen linkage across multiple terminals.

The application provides a communication method and device, the method comprising: receiving a first service message sent by a network side, the first service message comprising first characteristic information; determining a first interface used for forwarding the first service message according to the first characteristic information; if the first interface is not in a first network device, obtaining an interface identifier of a second interface associated with the first interface; sending the first service message to a second network device through the second interface indicated by the interface identifier and a peer-link, so that the second network device forwards the first service message to a third network device accessing the MLAG after the second network device removes the isolation of the second network device between a local peer-link port and a local MLAG member port; wherein the first service message is a layer 2 unicast message, and the second interface is a local peer-link port of the first network device.

The present disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for wireless communications. In one aspect of the present disclosure, a method of wireless communication performed by a user equipment (UE) includes receiving, from a base station, a grant message indicating a set of sidelink resources. The method further includes transmitting a plurality of unicast messages via a plurality of subgroups of the set of sidelink resources.

The application belongs to the field of blockchain underlying architecture and application cryptography technology, and specifically discloses a Byzantine consensus method and system based on authentication network coding and adaptive propagation, which comprises the following steps: dividing all network nodes into multiple clusters, and unicasting block proposals to cluster sink nodes; cutting the block proposal into multiple source fragments and generating authentication source symbols, and generating coding packets by linear combination of the authentication source symbols; the normal nodes in the cluster accumulate linearly independent packets by rank detection, recover the authentication source symbols when the decoding matrix is full rank, and perform anti-pollution batch verification, if the verification is passed, generate a local voting message and send it to the cluster sink node; the cluster sink nodes generate cluster certificates and exchange the cluster certificates among the sink nodes, and when the cumulative node weight represented by the cluster certificate meets the preset consensus threshold, the global Byzantine consensus is reached. The application solves the problems of expensive cross-agency physical bandwidth, communication message storm and algebraic pollution attack specific to the network coding environment.

A first UE transmits, on a first unicast link to a second UE, a first RS from a first TRP of the first UE. The first UE receives, based on the first RS transmitted, a first channel measurement for the first unicast link from the second UE and a first interference measurement for a second unicast link from a third UE. The first UE transmits, on the second unicast link with the third UE, a second RS from a second TRP of the first UE. The first UE receives, based on the second RS transmitted, a second channel measurement for the second unicast link from the third UE and a second interference measurement for the first unicast link from the second UE. The first UE applies SDM for the first unicast link and the second unicast link based on the received channel and interference measurements.

The invention discloses an amplified phone voice sub-control terminal and a voice intercom system, and belongs to the technical field of intercom communication systems. Comprising a display screen, a main amplified phone, a storage module and a communication module, the display screen is used for displaying information of each control box and slave amplified phones subordinate to each control box, the information comprises names of the control boxes, numbers of the amplified phones and states of the slave amplified phones, and the display screen is also used for displaying global call keys and unicast keys; the master amplified phone is used for collecting audio data and playing the audio data sent by the slave amplified phone; the storage module is used for synchronously storing the audio data and generating a sound recording file; and the communication module is used for sending the audio data to the slave amplified phone according to a preset format and receiving the audio data sent by the slave amplified phone. According to the technical scheme, equipment information and calling keys can be visually displayed, operation is convenient, global broadcast and unicast are supported, scheduling flexibility is improved, and meanwhile call data can be reserved.

A reception method and apparatus for use in a multi-cell orthogonal frequency division multiple access (OFDMA) wireless system. In a unicast receive mode during a first receive time period, a first group of orthogonal frequency division multiplexing (OFDM) symbols is received by a mobile device from multiple of a plurality of antennas at a serving base station. In a single-frequency-network (SFN) receive mode during a second receive time period, a second group of OFDM symbols is received by the mobile device from one of a plurality of antennas at the serving base station. The transition between the first receive time period and the second receive time period occurs during a cyclic prefix or a cyclic postfix between OFDM symbols, and the plurality of antennas produce a first beam pattern during the unicast receive mode and a second beam pattern during the SFN receive mode.

The present invention discloses a communication method and an apparatus. One example method includes: sending feedback information of a first data packet of a first multicast service; receiving discontinuous reception (DRX) configuration information corresponding to a first unicast service, the DRX configuration information corresponding to the first unicast service comprises duration of a second downlink hybrid automatic repeat request round trip time timer (HARQ RTT) timer and duration of a second downlink DRX retransmission timer, a data packet of the first unicast service is scrambled by cell radio network temporary identifier (C-RNTI); starting the second downlink HARQ RTT timer at a first moment after an end of sending the feedback information; and receiving based on the first unicast service scheduling information by the C-RNTI.

The application discloses a unicast sidelink communication method, device and terminal, and belongs to the technical field of communication. The unicast sidelink communication method comprises the following steps: a receiving end configured with a discontinuous reception (DRX) mode establishes a unicast sidelink with a sending end within a unicast establishment time; after the unicast sidelink is established, the receiving end receives a unicast service data packet by using target configuration information; wherein the target configuration information comprises parameter configuration information of a second DRX, and the parameter configuration information of the second DRX is indicated by quality of service (QoS) configuration of the unicast service; and the unicast establishment time comprises one of the following: a duration corresponding to a first DRX; and a duration corresponding to the first DRX and an extension time located after the duration corresponding to the first DRX.

Embodiments of the present application provide a unicast multicast conversion method and apparatus, and a processor-readable storage medium, wherein the unicast multicast conversion method comprises: receiving a Radio Resource Control (RRC) reconfiguration message sent by a first network node, when Multimedia Broadcast Multicast Service (MBMS) service data packets sent by the first network node are received through a multicast bearer and a User Equipment (UE) is in a connected state; reconstructing an MBMS Packet Data Convergence Protocol (MBMS PDCP) entity according to the RRC reconfiguration message; sending a reconfiguration completion message to the first network node so that the first network node converts the multicast bearer to a unicast bearer and sends the MBMS service data packets to the UE through the unicast bearer, the reconfiguration completion message being configured to characterize that reconstruction of the MBMS PDCP entity is accomplished by the UE; and receiving the MBMS service data packets sent by the first network node through the unicast bearer. The method realizes the conversion of the UE from receiving the MBMS service data packets through the multicast bearer to receiving the MBMS service data packets through the unicast bearer, thereby ensuring that no data packets are lost.

Systems and methods for power control in wireless communication systems using uplink (UL)-only transmission reception points (TRPs) are disclosed herein. In some embodiments, a user equipment (UE) uses downlink control information (DCI) that triggers a physical random access channel (PRACH) transmission and that indicates a pathloss offset value to the UE to be used by the UE to calculate a transmission power for the PRACH transmission. In some embodiments, a UE uses a component carrier (CC) set configuration for CCs for which DCI indicating that a use of aperiodic sounding reference signal (SRS) transmission is not triggered provides transmission power control (TPC) commands to adjust one or more power control adjustment values at the UE for transmitting SRSs on the CC set. In some embodiments, a UE uses unicast scheduling DCI having a TPC command for adjusting a power control adjustment value used by the UE for transmitting an SRS.

The application discloses a channel distribution scheduling management method and system for IPTV live broadcast service, relates to the technical field of IT and software development, and aims to solve the problem that IPTV live broadcast service application mainly includes different application scenarios such as live broadcast unicast, live broadcast time shift, live broadcast review, and the number of access channels based on different province live broadcast sources is more than 300 channels, and the number of channels is relatively large, so that higher requirements are needed for storage system capacity, read-write IO ability and program saving redundancy security strategy, technical solution points are as follows: S1: intelligent channel distribution management, live broadcast cache flow service nodes realize multi-node channel access distribution management based on an intelligent channel distribution management mechanism, S2: accurate scheduling of terminal service request, accurate scheduling redirection mechanism is combined with different node associated different channel list configuration, and it is guaranteed that terminal request supports hotspot channel service service direct response to any live broadcast cache flow service node. The effect of reducing end-to-end network data transmission and reducing transmission delay is achieved.

The utility model discloses a wireless radio station voice network transfer device without a central server, and belongs to the technical field of wireless communication. The device comprises terminal equipment (a radio station / radio station hand microphone), an audio processing unit (an audio interface unit and an audio interface control unit), a core processing unit (DSP), a network interaction unit, a power supply unit and an optional voice synthesis processing unit (TTS). The terminal equipment collects voice signals, the format of the voice signals is converted through the audio processing unit, the DSP carries out coding compression, and the voice signals are accessed to an office intranet and other networks through the network interaction unit to achieve cross-regional transmission. All the units are connected through standardized lines such as SP / MIC / Ai / Ao, a decentralized architecture is adopted, and voice unicast, broadcast and multicast transfer can be achieved without a central server. The device has the advantages of being high in reliability, flexible in networking, low in cost, efficient in processing, high in compatibility (adaptive to various radio stations) and the like, and is suitable for cross-regional communication scenes such as railway centralized operation command, emergency rescue and the like.