502 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.

A communication method implemented by an apparatus includes that a source access network element sends information of a unicast quality of service (QoS) flow of a protocol data unit (PDU) session corresponding to a multicast QoS flow of a multicast broadcast service (MBS) to a target access network element in a handover procedure. The target access network element forwards the information to a session management network element. The session management network element then indicates a user plane network element connected to the target access network element to send data of the MBS to a terminal device through the target access network element and by using a resource of the unicast QoS flow corresponding to the multicast QoS flow of the MBS.

In a method for configuring a radio bearer, a distributed unit (DU) of a distributed base station receives a request to configure radio resources for the radio bearer from a central unit (CU) of the distributed base station, and includes or refrains from including one or more configuration parameters for the radio bearer in a response based on one or more factors associated with the radio bearer. The DU also sends the response to the CU.

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.

Described herein are systems and methods for resource block determination for multicast and broadcast transmissions. According to various embodiments, a unicast physical downlink shared channel (U-PDSCH) transmission and a group common physical downlink shared channel (GC-PDSCH) transmission are received; a resource block (RB) configuration for decoding the U-PDSCH transmission and GC-PDSCH transmission is determined, wherein the RB configuration specifies a mapping of at least one of the U-PDSCH and the GC-PDSCH to one or more RB collections; and the GC-PDSCH within a Common Frequency Resource (CFR) in decoded according to the RB configuration. According to various embodiments, the determined RB configuration includes a specification of size and location for the one or more RB collections which at least one of the U-PDSCH and the GC-PDSCH is mapped to. In various embodiments, RB collection size and location may be determined relative to CRB indexes and / or a CFR.

This application provides a sidelink communication method and an apparatus, which can be applied to a U2U relay communication scenario, and reduce energy consumption of a terminal device. The method includes a first terminal device sending a first request message to a second terminal device, where the first request message is used to request to establish an end-to-end unicast connection between the first terminal device and a third terminal device. After sending the first request message, the first terminal device remains in a state that is before the sending of the first request message. Alternatively, the first terminal device remains in an active state until a first message is received, a second message is sent, or a connection establishment procedure is stopped by an upper layer.

The invention relates to a cashier system data synchronization method and system, an intelligent terminal and a storage medium, and relates to the field of intelligent terminal collaboration.The method comprises the steps that database changes are monitored in real time, incremental data are extracted, and the incremental data comprise at least one of tenant IDs, store IDs or device IDs; through an MQTT protocol, according to a hierarchical structure of a tenant ID, a store ID and a device ID, pushing the tenant ID, the store ID and the device ID to a target device in a broadcast or unicast mode; after the target equipment receives the incremental data, judging whether the target equipment has an operation behavior or not; if yes, generating an updating task according to the incremental data; adding the updating task into the queue to be processed through the target equipment; in response to the end of the operation behavior, updating tasks in the to-be-processed queue are executed in sequence, and the updating tasks are used for writing incremental data into a local database; and if not, writing the incremental data into the local database through the target equipment. The method has the effects of improving the operation efficiency of the store and guaranteeing the real-time consistency of the data.

Methods and apparatuses for processing an acknowledgement report for reception of control information. A method for a user equipment (UE) to receive physical downlink control channels (PDCCHs) includes determining a prioritization for receiving the PDCCHs and receiving the PDCCHs based on the prioritization. PDCCH receptions for a first search space set (SSS) are prioritized over PDCCH receptions for a second SSS or a third SSS. The PDCCH receptions for the second SSS are prioritized over the PDCCH receptions for the third SSS based on a configuration. The PDCCH receptions for the first SSS include a first downlink control information (DCI) format. The PDCCH receptions for the second SSS include a second DCI format that schedules a groupcast physical downlink shared channel (PDSCH) reception. The PDCCH receptions for the third SSS include a third DCI format that schedules a unicast PDSCH reception.

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.

A system including a server and a wireless RF access node connected to a communication network is provided. The server provides a first publish-subscribe broker of one or more publish-subscribe brokers forming part of a publish-subscribe broker network. The server connects to the wireless RF access node. A first entity connects via the wireless RF access node to the first publish-subscribe broker using a unicast IP address and thereafter publishes data packets. A second entity connects to the publish-subscribe broker network via any of the one or more publish-subscribe brokers. The server provides packet distribution services via the first publish-subscribe broker for the first entity, the publish-subscribe broker network routes communications from the first entity to the second entity when the second entity is subscribed; and the data packets published by the first entity are routed through the publish-subscribe broker to which the second entity is connected.

Method and WTRU enabled for service continuity using WTRU-to-WTRU relays. A relay path may be modeled as an SLRB, RLC leg of an SLRB, and / or a MAC logical channel. The WTRU adds a path for a destination based on configured / usable relays. The WTRU may associate an end-to-end L2 destination ID with one or more path L2 destination IDs or path IDs. Upper layers select one or more paths for transmission of a packet / bearer. The WTRU may send a relay announcement message containing path connectivity information. A WTRU may select a path for transmission based on properties associated with a sidelink. The WTRU may activate / deactivate an SL bearer, unicast link, L2 destination, and / or RLC Leg. The WTRU changes a bearer associated with an SLRB from an established RLC entity to another established RLC entity.

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.

The invention discloses a half-duplex satellite terminal signal time management method and device and a communication system, and relates to the field of satellite communication, and the method comprises the steps: adding forbidden time period data generated by an allocated time slot into a plurality of conflict management data sets, the plurality of conflict management data sets at least comprise a forward distribution management data set corresponding to a forward frame, a reverse distribution management data set corresponding to a reverse frame, and a terminal conflict management data set corresponding to a target terminal; and a forward unicast time slot which does not conflict with the reverse sending time on the terminal side timeline is allocated to the target terminal, an available time period of the reverse allocation management data set is searched, and a reverse dedicated access time slot which does not conflict with the forward receiving time on the terminal side timeline is allocated to the target terminal. According to the invention, the technical problem that the resource efficiency is reduced due to the fact that extra protection time needs to be set when satellite communication is realized in a half-duplex mode in the prior art is solved.

The invention relates to the technical field of wireless transmission, in particular to a Modbus wireless transmission method and system based on Zigbee. A Modbus cluster is defined in a ZCL protocol, a Modbus ID attribute corresponding to physical equipment of each slave converter is set for each slave converter, when a host converter needs to communicate with unknown equipment, blind data broadcasting is not needed any more, and the communication efficiency is improved. Instead, a matching command carrying the target Modbus ID is broadcasted firstly, only the slave converter matched with the ID in the network responds to the Zigbee network address of the slave converter in a unicast mode, the host dynamically establishes address mapping after receiving the Zigbee network address, all subsequent Modbus messages are accurately transmitted through efficient and stable unicast, the mapping relation has the self-healing capacity, and the Modbus messages can be accurately transmitted through the self-healing capacity. When the network address of the slave is changed, the network address can be automatically updated, and long-term stability of communication is ensured.

The invention discloses a multi-door-lock cooperative communication group establishment method and system, and the method comprises the steps: dividing a feature vector into an upper half segment and a lower half segment according to an authorized user face feature vector obtained by an initiator door lock, and completing multicast registration; according to a communication group request initiated by an initiator door lock, the router compares the feature vectors associated with the outbound interface in the multicast forwarding table and then performs directional forwarding; according to the multicast invitation message received by the receiver door lock, constructing a unicast response message containing an upper half segment, and sending the unicast response message to the initiator door lock; and verifying a matching result of the upper half section of the feature vector according to a unicast response message received by the initiator door lock, establishing a secure connection with the verified receiver door lock, and initiating a multi-party communication group. By utilizing the embodiment of the invention, the old can initiate the communication group without operating a mobile phone, and meanwhile, the convenience, reliability and safety of the multi-door-lock cooperative communication group are ensured.

A wireless device receives configuration parameters comprising: a first discontinuous reception (DRX) configuration, indicating a first DRX on duration timer value, associated with unicast transmissions in a cell; and a second DRX configuration, indicating a second DRX on duration timer value, associated with multicast and broadcast services (MBS) in the cell. The wireless device may receive a power saving (PS) indication indicating not to start a DRX on duration timer. The wireless device may further skip, based on receiving the PS indication, monitoring in a first DRX on duration associated with the first DRX on duration timer value, first physical downlink control channels (PDCCHs) for the unicast transmissions. The wireless device may also monitor, in a second DRX on duration associated with the second DRX on duration timer value and while skipping monitoring the first PDCCHs in the first DRX on duration, second PDCCHs for the MBS.

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 present application provides a method for a node used for wireless communication and an apparatus. The method includes: receiving first information, where the first information is used to determine whether to perform a first operation. The first operation includes at least one of initial beam pairing, sidelink unicast link establishment, or sidelink beam management, and the first information is used to determine whether to transmit a first sidelink-synchronization signal block related to the first operation, and / or the first information is used to determine a transmission parameter of the first sidelink-synchronization signal block.

An embodiment provides a method for operating a relay UE in a wireless communication system, the method comprising: establishing a PC5 unicast link with a remote UE, by the relay UE; transmitting an RRC setup request to a first base station, by the relay UE; receiving an RRC reject message including a first waitTime from the first base station, by the relay UE; and transmitting, on the basis of reception of the RRC reject message, a first notification message to the remote UE, by the relay UE, wherein the first notification message includes a second waitTime based on the first waitTime received by the relay UE from the first base station.

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.

Methods and apparatuses are disclosed that provide for the protection of the privacy of individuals using wireless local area network (WLAN) technologies and protecting the identification of WLAN users of networks implementing IEEE 802.11 standards by frustrating attempts at traffic analysis that may compromise user privacy. Methods and apparatuses disclosed include randomly modifying the length of medium access control service data units (MSDUs) such that all frames sent / received among stations (STAs) associated with a particular access point (AP) are the same length such that all traffic appears the same to an observer. Other methods disclosed may include random padding of the MSDUs, and / or fragmenting / segmenting MSDUs. Finally, embodiments of a method are disclosed in which a new element is used to signal epoch parameters to a group or a single STA, identified by their Association Identifier (AID) via groupcast or broadcast, thereby preventing collisions that would result using conventional unicast techniques.

The present application relates to a method for energy-efficient unicast and multicast transmission in a wireless communication system. A method for time-division multiplexing subframes on a serving cell to a user equipment (UE) wherein an eNodeB indicates the communication via a bitmap, wherein the bitmap indicates a set of subframes (501, 502, 503) operating with a legacy Long Term Evolution (LTE) transmission format using a first bit (bit "0") and another set of subframes (504) operating with an Evolved Transmission New Carrier Type (NCT) format using a second bit (bit "1"), including reduced density cell-specific reference signal (CRS) transmission without a physical downlink control channel (PDCCH) control region.

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.