9179results about "Broadcast service distribution" patented technology

The invention discloses an unmanned aerial vehicle cluster control and navigation method based on MAPPO. The method comprises the following steps: extracting basic characteristic data of an unmanned aerial vehicle, calculating a comprehensive capability index of the unmanned aerial vehicle through dynamic characteristic analysis and standardization processing, and constructing a cluster isomerism matrix; calculating a communication quality index according to the real-time communication data, predicting link reliability data, constructing a dynamic communication graph, and generating an optimal communication topological structure; based on the cluster isomerism matrix and the optimal communication topological structure, calculating a task allocation fitness matrix, and constructing a hierarchical strategy model and a hierarchical value function; performing multi-dimensional analysis on the communication data, generating an information importance index, calculating transmission priority data, generating a bandwidth allocation matrix, and constructing a self-adaptive routing strategy; and calculating a strategy uncertainty index, constructing a robustness constraint condition, optimizing a strategy model and realizing distributed execution. According to the invention, the cooperative control efficiency and the system reliability of the heterogeneous unmanned aerial vehicle cluster are improved.

The invention discloses a multi-door-lock cooperative processing method and system, and the method comprises the steps: generating an assistance request IGMP multicast message according to a preset triggering operation detected by a first door lock B and read RFID identification information, and transmitting the assistance request IGMP multicast message to a router; according to the assistance request IGMP multicast message, recording interface information and validity period associated with the RFID identification information in a multicast forwarding table entry, and caching the multicast message; according to the preset triggering operation detected by the second door lock A and the same read RFID identification information, an assisted request multicast message containing the RFID identification information is generated, and the assisted request multicast message is sent to the router; according to the RFID identification information and the multicast forwarding table item, after the validity period is verified to be not expired, the message is directionally forwarded to the first door lock B, the first door lock B sends an assistance confirmation message to the second door lock A, and a robot calling instruction is triggered. According to the embodiment of the invention, low-delay and high-reliability door lock cooperative control can be realized.

Various aspects of methods, systems, and use cases for multi-entity (e.g., multi-tenant) edge computing deployments are disclosed. Among other examples, various configurations and features enable the management of resources (e.g., controlling and orchestrating hardware, acceleration, network, processing resource usage), security (e.g., secure execution and communication, isolation, conflicts), and service management (e.g., orchestration, connectivity, workload coordination), in edge computing deployments, such as by a plurality of edge nodes of an edge computing environment configured for executing workloads from among multiple tenants.

The invention relates to the technical field of ship communication, in particular to a multi-link converged communication method and system for a ship. The method comprises the following steps: receiving navigation information broadcasted by other ships in a preset range, evaluating the availability of a communication frequency band, and generating sea area communication channel state data; acquiring geographic position data of each ship; space communication link potential analysis is carried out according to the geographic position data of each ship and the sea area communication channel state data, and cross-chain space communication potential data is generated; constructing a multi-link ad hoc network topological structure according to the cross-chain space communication potential data; and task adaptation communication link allocation is carried out based on a multi-link ad hoc network topological structure, and a multi-link fusion transmission strategy is constructed, so that real-time communication link safe switching management is realized. According to the invention, on the basis of communication service adaptation and a multi-link fusion transmission strategy, real-time communication safe switching and high-reliability transmission of the marine formation are realized.

Methods, apparatuses, and computer-readable storage medium for supporting mobile-originated small data transmission (MO-SDT) and mobile-terminated small data transmission (MT-SDT) or point-to-multi-point (P2M) multicast and broadcast services (MBS) are provided. An example method may include transmitting, to a base station, a capability indication representing support of MO-SDT and MT-SDT. The example method may further include receiving, from the base station, one or more configurations for the MO-SDT and the MT-SDT in a radio resource control (RRC) message, the RRC message comprising at least an RRC release message. The example method may further include transitioning to an RRC inactive state. The example method may further include transmitting, to the base station, a common control channel (CCCH) message in a MO-SDT transmission while in the RRC inactive state.

Disclosed are a method and device for transmitting and receiving signals and channels in a wireless communication system. A method performed in a wireless communication system by a UE according to an embodiment may comprise: first DCI indicating a new data indicator (NDI) value and an HARQ process number (HPN) value is received in a first cell; a group common PDSCH scheduled by the first DCI is received in the first cell; second DCI indicating the NDI value and the HPN value is received in a second cell; and a UE-dedicated PDSCH scheduled by the second DCI is received in the first cell. Here, the UE-dedicated PDSCH may be received by being determined as the retransmission of a transport block (TB) of the group common PDSCH based on a pre-configured condition.

The invention discloses an object searching method and system based on combination of a door lock and geographical relationship feedback, and the method comprises the steps: generating a local position information table containing a device ID and a position weight according to the RSSI signal strength of a Bluetooth label broadcast frame periodically received by the door lock; obtaining adjacent door lock IDs based on a topological relation pre-stored in the building information model, and obtaining a position information topological table synchronized in the whole network; according to the position information topology table, the voting weight value of each door lock is calculated by adopting a grading voting algorithm of a main vote right, a secondary vote right and a weak vote right, and a door lock voting result table is generated through vote accumulation; and in response to a Bluetooth equipment ID query request input by a loser, screening door locks with weights higher than a preset threshold value according to the voting result table, sorting the door locks according to the total number of votes, forwarding object searching instructions to a predetermined number of door locks with the highest number of votes, and triggering voice and screen display guide prompts. According to the embodiment of the invention, high-efficiency and low-delay object searching feedback can be realized, and the positioning precision and reliability are improved.

The Internet can be configured to provide communications to a large number of Internet-of-Things (IoT) devices. Devices can be designed to address the need for network layers, from central servers, through gateways, down to edge devices, to grow unhindered, to discover and make accessible connected resources, and to support the ability to hide and compartmentalize connected resources. Network protocols can be part of the fabric supporting human accessible services that operate regardless of location, time, or space. Innovations can include service delivery and associated infrastructure, such as hardware and software. Services may be provided in accordance with specified Quality of Service (QoS) terms. The use of IoT devices and networks can be included in a heterogeneous network of connectivity including wired and wireless technologies.

The Internet can be configured to provide communications to a large number of Internet-of-Things (IoT) devices. An example non-transitory, machine readable medium comprises instructions that, when executed, direct a processor to: cause a device to connect to a network of a decentralized database, discover a namespace of a node of the decentralized database, create a shared database partition in response to being accepted by the node, advertise a service to the decentralized database; and route data of a service between a private database partition and the shared database partition

A disclosure of the present specification provides a method for performing multicast-related communication by an SMF. The method may comprise the steps of: receiving, from a UE, a join request message for requesting participation in multicast communication; transmitting, to an AMF node, an allocation request message for requesting allocation of an EBI to a unicast QoS flow corresponding to a multicast QoS flow related to the multicast communication; and receiving information of the EBI allocated to the unicast QoS flow from the AMF node.

A method for sending target shared information and an electronic device, the method comprising: respectively receiving first help information sent by a first terminal and second help information sent by a second terminal through a satellite, the first help information comprising first help content, first sending time and first position information; the second help-seeking information comprises second help-seeking content, second sending time and second position information; when the time difference does not exceed the first preset time and the distance difference does not exceed the preset distance, target sharing information is generated, the target sharing information is used for indicating help information of the first terminal and help information of the second terminal, and the time difference is an absolute value of a difference value between the first sending time and the second sending time; the distance difference is an absolute value of the distance difference between the position indicated by the first position information and the position indicated by the second position information; and sending the target shared information to a target terminal, wherein the target terminal is the first terminal and / or the second terminal. The method can increase the rescue probability of the help seeker.

The invention discloses an unmanned vehicle speed centralized control method and system, and relates to the field of unmanned driving, and the method comprises the steps: obtaining the environment data of an intersection through a roadside sensing device; performing multi-sensor data fusion and calculation through a roadside calculation unit to obtain a multi-vehicle speed control scheme; broadcasting the multi-vehicle speed control scheme to the unmanned vehicle at the intersection through a road side communication RSU; and the vehicle-mounted controller of the unmanned vehicle controls the unmanned vehicle according to the multi-vehicle speed control scheme in combination with the environmental data within the preset range of the unmanned vehicle acquired by the vehicle-mounted sensing equipment. Aiming at the lack of cooperative control of unmanned vehicles at the intersection in the prior art, the road side calculation unit is used for performing multi-sensor data fusion, and a multi-vehicle speed control scheme is generated by combining a trajectory prediction and model prediction control algorithm, so that the multi-vehicle speed centralized control at the intersection is realized.

The invention provides a positioning and tracking early-warning method and system for a Bluetooth signal, and relates to the technical field of positioning and tracking, and the method comprises the steps: receiving a Bluetooth signal of a target Bluetooth device through a Bluetooth receiver, correcting a signal feature parameter through a signal attenuation compensation model, and combining the position coordinate of the Bluetooth receiver, the real-time position of the target equipment is calculated through a positioning algorithm, and the real-time position and the corrected signal characteristic parameters are stored in a track database; based on historical trajectory data, a space-time diagram convolutional neural network model is constructed and trained to predict a target trajectory, and an electronic fence is dynamically generated in combination with target activity rule parameters; and generating fence early warning information by comparing the prediction track and the electronic fence boundary, extracting a target behavior feature vector, identifying an abnormal behavior by using a behavior identification model, and generating comprehensive early warning information in combination with the fence early warning information.

Methods and systems are provided to indicate assistance information for radio access technologies to support interface selection for New Radio (NR) Vehicle-to-Everything (V2X) processes. An upper layer entity exchanges information with lower layer entity while the upper layer can continue to use the existing interface for V2X transmission until it is not able to use the current interface. The upper layer can be a V2X layer and the lower layer can be an Access Stratum (AS) layer. The upper layer can request availability information from the lower layer for other applicable interfaces. The upper layer then instructs the lower layer to provide assistance information for one or more applicable interface(s), depending on whether mapped to the ongoing service. In providing availability information, the lower layer can continuously measure criteria, such as channel conditions, to determine the availability of relevant interfaces and indicate the availability information to the upper layer.

The invention relates to the technical field of data processing systems, and discloses a command and dispatch management method and system based on artificial intelligence, and the method comprises the steps: generating a space-time occupancy statement containing an occupancy area, a time window and a task state through an edge node, and broadcasting the space-time occupancy statement to an adjacent node; and a receiver performs local conflict verification according to a state mutual exclusion rule, and triggers priority-based lightweight negotiation to adjust an occupied time window when detecting that static observation and dynamic intervention states coexist in an overlapped space-time. Postward conflict processing of traditional centralized scheduling is converted into beforehand conflict avoidance, the response speed and the operation toughness of the system are remarkably improved, and meanwhile, through physical reachability verification and a channel self-adaption mechanism, the cooperation reliability in a complex environment is guaranteed.

The invention discloses a cross-lock door opening method and system for an intelligent door lock, and the method comprises the steps: selecting a plurality of nearest neighbor intelligent locks according to the geographic position of a fault intelligent lock, generating a neighbor intelligent lock list, and determining a pre-selected replacement lock of the fault intelligent lock from the neighbor intelligent lock list; the fault intelligent lock sends an alternative unlocking authorization request to the check-in registrant, and after authorization is obtained, connection with the pre-selected alternative lock is established, so that alternative configuration of the fault intelligent lock is carried out; when a person is detected by the pre-selected alternative lock completing the alternative configuration, face recognition comparison is carried out; and after the recognition comparison of the replacement lock succeeds, the replacement lock sends an unlocking message to the faulty intelligent lock, and the faulty intelligent lock adopts a delayed unlocking mode to unlock the faulty intelligent lock according to the recognition comparison message of the replacement lock. According to the embodiment of the invention, a cross-door-lock recognition method can be established to solve the problem of face recognition comparison faults, and the problem that the intelligent lock cannot be unlocked due to the face recognition comparison faults can be effectively solved.

Embodiments of the present disclosure provide methods and apparatuses for multicast / broadcast service (MBS). A method performed by a radio access network node comprises receiving a first request from a core network node in a first network. The first request comprises a multicast / broadcast service (MBS) session identifier (ID) and at least one associated session identifier. The at least one associated session ID is used to make an association for two or more broadcast MBS sessions of two or more networks. The method further comprises when a predefined number of user planes have been established for the two or more MBS sessions, skipping establishing a user plane of a first MBS session towards the first network. The method further comprises when the predefined number of user planes have not been established for the two or more MBS sessions, establishing the user plane of the first MBS session towards the first network.

The invention discloses a door lock and card cooperative processing method and system, and the method comprises the steps: triggering a robot calling process according to preset times of doorbell button operation detected by a first door lock and read neighbor RFID card information, verifying a matching result of an RFID card and a resident registration form, and generating an authority verification passing signal; calculating a target multicast address based on the ID number of the RFID card, and converting the ID number of the RFID card into a false source IP address to obtain a communication parameter set; sending an IGMPv3 report message to the router according to the communication parameter set; according to the triggering operation of the same RFID card detected by the assisted second door lock, an assistance multicast request message is generated, the (S, G) forwarding table item is matched through the router and forwarded to the first door lock, the first door lock sends an assistance confirmation message to the second door lock, and robot calling authorization is completed. By utilizing the embodiment of the invention, efficient, safe and low-delay cross-door-lock cooperative operation can be realized.

A method and a device for transmitting / receiving a group common PDSCH in a wireless communication system are disclosed. A method for receiving a group common PDSCH, according to one embodiment of the present disclosure, may comprise the steps of: transmitting, to a base station, a first message about a procedure for switching from a non-connected mode to a connected mode while receiving a group common PDSCH from the base station in the non-connected mode; receiving, from the base station, a second message about the procedure for switching from the non-connected mode to the connected mode in response to the first message; and continuously receiving the group common PDSCH from the base station after switching to the connected mode.

An operation mode from a plurality of operation modes can be determined (310) based on at least one traffic type originated from a UE. The plurality of operation modes can include at least one group operation mode and an individual operation mode. The at least one group operation mode can support a plurality of UEs grouped into a group of UEs. The at least one group operation mode can support at least one network entity communicating associated messages with the group of UEs including the UE. The associated messages can be associated with the group of UEs. A network entity can be informed (320) of the determined operation mode.

The embodiment of the invention provides a non-terrestrial network communication method and a related device, and the method comprises the steps that first network equipment obtains first configuration information of a first cell, and the first cell is a cell in the first network equipment; and the first network device sends first configuration information to the second network device, the first configuration information comprising a first identifier and / or related information of a physical broadcast channel (PBCH) of the first cell, and the first identifier being used for identifying a system message of the first cell. The L3-free signaling switching is realized under the regeneration satellite working scene, the signaling overhead is saved, the signaling storm caused by switching is avoided, and the communication efficiency is improved.

The invention provides a motorcycle unlocking and locking method based on low-frequency radio frequency, Bluetooth and communication protocols, and the method comprises the steps: carrying out the phase compensation of a received signal through an iterative optimization equalizer coefficient until the phase distortion is effectively suppressed; a Kalman filtering algorithm is adopted to filter signals of a receiving end, and a filtered high-quality signal is obtained by establishing a state space model of the signals and updating state estimation by using observation values, so that interference of a multipath effect on a pairing process is reduced; in combination with a retransmission mode of a pairing protocol, dynamically adjusting retransmission parameters by tracking the response time and the success rate of a connection request; a Bluetooth pairing process is simulated, and connection success rates under different environment parameter settings are analyzed through a large number of simulation experiments, so that parameter selection of a pairing protocol is optimized.

The present disclosure provides a method and device for multicast transmission, wherein a method for multicast transmission performed by a first network device includes: receiving a first message for requesting handover from a second network device; transmitting a second message for responding to the first message to the second network device.

Various arrangements disclosed herein relate to managing Multicast and Broadcast Services (MBSs) in various Radio Resource Control (RRC) states, including a wireless communication device receiving from a network using first signaling specific to the wireless communication device, PTM configuration used for receiving at least one MBS when the wireless communication device is in an RRC-connected state. The wireless communication device receives from the network using second signaling specific to the wireless communication device when the wireless communication device is in the RRC-connected state, indication information indicating that the PTM configuration used for receiving the at least one MBS is obtained from broadcast signaling when the wireless communication device is in an RRC-inactive state.

The invention discloses a network communication dynamic optimization method based on multi-module collaboration, and relates to the technical field of network communication, a dual-mode communication module is deployed at each network node, and the network communication dynamic optimization method comprises the following steps: each network node broadcasts own existence information and power line channel characteristics through an HPLC (High Performance Liquid Chromatography) channel of the dual-mode communication module; each network node scans surrounding wireless networks through an HRF channel of the dual-mode communication module and reports own wireless channel quality information to the gateway; the global state sensing module collects all information and constructs a global network view containing physical topology and a channel quality map. A dual-mode cooperation mechanism, a machine learning prediction model and a dynamic decision strategy can adapt to complex dynamic environments such as power line noise fluctuation and wireless interference change, and communication parameters can be autonomously optimized without manual intervention; and meanwhile, the modular design is convenient to expand to a multi-mode communication scene, and has a wide application prospect.

Provided in an embodiment of the present disclosure is a method for determining a resource. The method is executed by a network device. The method comprises: determining a predetermined resource according to predetermined information, wherein the predetermined information indicates that a multicast and broadcast service (MBS) is to be provided or not to be provided to a first-type terminal, and the predetermined resource comprises at least one of the following: a common frequency resource (CFR), or an initial downlink bandwidth part (DL BWP) for use by the first-type terminal.

Techniques and apparatuses are described for machine-learning architectures for broadcast and multicast communications. A network entity processes broadcast or multicast communications using a deep neural network (DNN) to direct the one or more broadcast or multicast communications to a targeted group of user equipments (UEs) using the wireless communication system. The network entity receives feedback from at least one user equipment (UE) of the targeted group of UEs. The network entity determines a modification to the DNN based on the feedback. The network entity transmits an indication of the modification to the targeted group of UEs. The network entity updates the DNN with the modification to form a modified DNN. The network entity processes the broadcast or multicast communications using the modified DNN to direct the broadcast or multicast communications to the targeted group of UEs using the wireless communication system.

The invention belongs to the technical field of blockchain and Internet of Vehicles security management, and relates to an Internet of Vehicles security and credible message sharing method based on blockchain and trust management, comprising: a message providing vehicle records and broadcasts a message, and a message receiving vehicle receives the message, scores the authenticity of the message, and broadcasts the message to a consensus vehicle; the consensus vehicle performs usefulness scoring on each authenticity score s1, i, when the number of high usefulness scores is greater than a threshold value Q, the data (m, s1, i, s2, i, c, t) is uploaded to the accounting node, and s2, i, c are high usefulness scores of the consensus vehicle c on s1, i; the accounting node receives and verifies the data (m, s1, i, s2, i, c, t), packages the verified data into a block and stores the block into a block chain; the RSU calculates the trust value of the vehicle in the area and shares the trust value to an RSU cluster; the RSU cluster makes a trust decision on the vehicle according to the trust value of the vehicle; according to the method, authenticity scoring and usefulness scoring are carried out on the message, the credibility of the shared message in the Internet of Vehicles is improved, and the authenticity and integrity of the message are ensured in combination with the block chain technology.

The invention provides an intelligent gateway equipment interconnection method and system based on a Bluetooth ad hoc network protocol, and is applied to the field of communication data processing. Through adaptive node management, real-time updating of a network topology structure and optimization of a connection priority, communication stability and load balance are ensured, generation of a network bottleneck is avoided, data can be uniformly distributed among a plurality of intelligent gateways through intelligent data flow distribution, overload of a part of gateways is avoided, the overall system efficiency is improved, and the system performance is improved. And local execution of edge computing optimizes the response speed and reduces delay, and key control tasks such as equipment linkage, data distribution and abnormal response are cooperatively processed through a distributed computing architecture, so that the flexibility and the processing capability of the system are improved.

The invention discloses a method and system for cooperatively positioning a vehicle through a door lock, and the method comprises the steps: obtaining and dynamically updating a neighbor door lock list through the detected door lock of the vehicle according to the broadcast and scanning data of a Bluetooth tag on a moving vehicle; according to the periodic detection report of the door locks on the vehicle and the global analysis of the management system, the cooperative timers of the related door locks are synchronized, and timing management for preventing repeated triggering is implemented; according to the response of the obtained neighbor door lock which initiates multicast query after the collaborative timer expires, the door lock which initiates the query verifies whether all responders are in the neighbor list, so as to judge whether the vehicle is stably parked; and according to the vehicle parking information confirmed by the door lock, the management system updates the global state and sends a parking position notification to the owner. According to the embodiment of the invention, accurate and low-misjudgment judgment of the parking state of the vehicle can be realized, and the reliability and real-time performance of vehicle positioning management are improved by means of global state synchronization.