62 results about "Periodic broadcast" patented technology

The invention relates to the field of Bluetooth audio, in particular to a synchronization method for periodic broadcast in a Bluetooth device group and the Bluetooth device group, and the method comprises the following steps: establishing a connection with a main Bluetooth device; receiving periodic broadcast synchronous transmission information from the main Bluetooth equipment; and according to the periodic broadcast synchronous transmission information, synchronizing the periodic broadcast of the source device, and after the synchronization is completed, identifying the access Bluetooth device as the main Bluetooth device. According to the invention, the method does not need to obtain the address information of the source device from the main Bluetooth device and then scan and synchronize the PA, thereby reducing the power consumption of the access Bluetooth device; according to the embodiment of the invention, the access Bluetooth device directly obtains the periodic broadcast synchronization information of the source device from the main Bluetooth device, and appoints the synchronization time slot to carry out the periodic broadcast operation, and synchronization does not need to be carried out by scanning the broadcast where the periodic broadcast is located, so that the synchronization efficiency is remarkably improved, and the synchronization failure probability is reduced.

The invention discloses a master-slave control maneuvering micro-grid host autonomous allocation method and system, and the method comprises the steps: defining a power conversion unit control frame, an arbitration domain of the control frame comprises a device address of a power conversion unit, and the device address is located at a starting position of an identifier; a data field of the control frame comprises heartbeat data, and the heartbeat data changes according to a certain rule and is used for identifying normal operation of a program of the power conversion unit; when the maneuvering micro-grid supplies power in parallel, the host broadcasts a control frame to the bus according to a fixed period, the slave monitors data of the CAN bus, if the control frame of the host is not received within a certain timeout period or heartbeat data of the host received in multiple continuous periods are the same, it is judged that the host breaks down, and the control frame is sent to the CAN bus to compete for the host; if only one slave in the bus sends the control frame to the CAN bus, the slave sending the control frame is used as a new host; and if the plurality of slaves send the control frames to the bus at the same time, the CAN bus selects the slave with the small identifier as a new host. According to the invention, the power supply reliability of the maneuvering micro-grid is greatly improved.

The invention discloses a hybrid in-band telemetering system and method for a giant constellation satellite network, and the method comprises the steps: firstly determining a detection node through a central controller, and building a communication channel; secondly, the central controller issues a telemetering task, the detection node constructs a detection packet active period broadcast, the forwarding node modifies and forwards the detection packet, and finally the detection node uploads the detection packet containing telemetering data to the central controller; in the process, the forwarding node performs periodic self-inspection, and processes telemetering abnormal conditions through a self-inspection packet and election of a temporary detection node; and finally, the central controller analyzes the detection packet to obtain the state information of each link, and the telemetering task is completed.

Systems, apparatus, processes, and computer-readable media for wireless communication are disclosed. For example, a network device may transmit periodic broadcasts on a synchronization channel to a plurality of wireless communication devices. The network device may receive one or more wireless communication device initiated messages from one or more of the plurality of wireless communication devices in one or more reserved response slots on the synchronization channel.

The invention discloses a lightweight self-calibration time synchronization method for a LoRa sensor network, and belongs to the technical field of wireless communication in the Internet of Things (IoT). According to the method, a time synchronization beacon is broadcasted through a gateway TDMA time slice, and low communication overhead, low hardware complexity and high-precision synchronization are realized in combination with a channel activity detection (CAD) technology of a terminal and a dynamic calibration strategy. The method comprises the following core steps: synchronizing TDMA periodic broadcast time of a gateway, and configuring the number of lead codes; a terminal detects the active state of a channel through CAD, a progressive calibration strategy is adopted, a hardware RTC clock compensation value is dynamically adjusted, and steady-state oscillation caused by fixed calibration is avoided. The method is suitable for industrial monitoring, smart cities and other low-power-consumption scenes, and solves the problems of dependence on high-precision hardware and high communication overhead in the prior art.

The invention discloses a method and equipment for automatically configuring a branch monitoring device and a storage medium, and relates to the technical field of digital information transmission, and the method comprises the steps that the branch monitoring device sends a periodic broadcast information packet through an Ethernet interface; the control module obtains the periodic broadcast information packet through the first network switch; constructing an equipment file corresponding to the branch monitoring device on configuration software of a control module according to the periodic broadcast information packet; determining the parameter configuration corresponding to the branch monitoring device in a parameter configuration library table according to the equipment file, and unicast the parameter configuration to the branch monitoring device through the first network switch to complete the configuration of the corresponding parameter of the branch monitoring device; and after determining that the parameter configuration is successful, the branch monitoring device performs equipment self-inspection and display self-inspection according to a self-inspection instruction sent by the control module, and generates a detection report. Through combination of software and hardware, the technical problem of low configuration detection efficiency of the device is solved, and the configuration detection efficiency of the device is improved.

The present disclosure discloses a Bluetooth communication system. A first access point apparatus of a Bluetooth access point apparatus performs periodic broadcast communication. A second access point apparatus of the Bluetooth access point apparatus and the first access point apparatus together perform a connection procedure that includes generating connection information related to a to-be-communicated wireless apparatus by the first access point apparatus, receiving the connection information from the first access point apparatus by the second access point apparatus, broadcasting a connection request signal according to the connection information by a first one of the first and the second access point apparatuses to be identified and received by the to-be-communicated wireless apparatus, receiving a connection response signal from the to-be-communicated wireless apparatus by a second one of the first and the second access point apparatuses and establishing connection with the to-be-communicated wireless apparatus by the second access point apparatus.

The invention discloses a method and system for enhancing a BLE periodic broadcast rate by using Wi-Fi, and relates to the technical field of wireless communication. According to the method, based on a broadcast packet set in BLE periodic broadcast, periodic broadcast transmission related to Wi-Fi is expanded by configuring parameters of an auxiliary pointer AuxPtr domain and a synchronization information SynInfo domain in an ADVEXTIND packet and an AUXADVIND packet, and a periodic broadcast sending anchor point is still specified according to a BLE protocol; after expansion, the periodic broadcast has a Wi-Fi mode and a BLE mode, the Wi-Fi mode transmits the Wi-Fi periodic broadcast based on the configured parameters, and the BLE mode transmits the standard BLE periodic broadcast. According to the invention, the BLE Bluetooth periodic broadcast is expanded through Wi-Fi, the transmission rate of the BLE Bluetooth periodic broadcast is improved, and efficient communication is realized.

For On Demand SIB1, OD-SIB1, handling, a method of a User Equipment, UE, managing cell barring in a telecommunications network during cell selection and / or reselection is provided, comprising: receiving a Signal Synchronisation Block, SSB, from a cell (NES Cell in figure 9) in the telecommunications network (1101, figure 11), determining that the cell is in a Network Energy Saving, NES, mode (1102) (in which the cell is currently not periodically broadcasting system information block one, SIB1, to save power, i.e. reduce energy consumption, On-demand SIB1); and, modifying a behaviour of the UE for barring the cell in response to determining that the cell is in NES mode (1103). The method further comprises, receiving (from an alternative cell that is not in NES mode, e.g. Anchor Cell A) a configuration (an uplink wake-up signal, UL WUS, configuration) for sending, to the NES Cell, an indication that the UE requires periodic broadcast of a SIB1. Modifying the cell barring behaviour of the UE may comprise: unbarring the cell in response to the UE receiving the configuration; during a reselection procedure for the cell, determining that the UE has received the configuration for the cell and: unbarring the cell in response or suppressing barring of the cell in response; or barring the cell with a shorter duration than would be applied for a cell not in NES mode (e.g. reduce the barring time from 300 seconds to 60 or 120 seconds).

The invention provides an artificial cochlea in-vitro machine and an artificial cochlea system. The artificial cochlea in-vitro machine comprises a first in-vitro machine and a second in-vitro machine, the first extracorporeal machine is configured to perform LE Audio broadcast to wait for connection of a playing device; after the first external machine is connected with the playing device, the second external machine sends the broadcast information to the second external machine after receiving a command for transmitting the broadcast information from the playing device; and the first extracorporeal machine and the second extracorporeal machine synchronize to periodic broadcasts sent by the playing device based on the broadcast information, obtain corresponding broadcast isochronous streams, and synchronously play the broadcasts. According to the configuration, power consumption and delay are reduced based on LE Audio transmission. Furthermore, the first extracorporeal machine and the second extracorporeal machine can synchronously acquire the broadcast isochronous stream and synchronously play the broadcast, so that the left and right ear sides can receive the audio played by the playing device at the same time.

The invention relates to a communication method, a communication device, Bluetooth equipment, a communication system, a medium and a product. The communication method is executed by a first Bluetooth device, and comprises the following steps: in response to an operation of initiating team formation, generating a target team formation identifier which is used for forming a first communication team; in response to receiving a first extension broadcast sent by a second Bluetooth device, teaming with the second Bluetooth device, the first extension broadcast comprising the target teaming identifier and the device identifier of the second Bluetooth device; and in response to completion of team formation of the first communication team, sending a first periodic broadcast in the first communication team, the first periodic broadcast comprising communication data to be sent by the first Bluetooth device. Therefore, team formation of a plurality of Bluetooth devices is realized through the low-power-consumption Bluetooth extended broadcast, and the purposes of rapid team formation and flexible entry and exit of team formation can be achieved. In addition, periodic broadcasting is adopted for communication, the communication distance is expanded, and the communication experience is improved.

The application provides a base station data continuation method, system and storage medium for offshore communication interruption, the method comprises the following steps: acquiring ship data, performing feature analysis and classification processing on the acquired ship data, and determining the data priority; adding timestamp information to the processed data, and storing the data according to the priority; connecting the base station to determine the continuation user, recording the user connection duration, and determining the continuation data; calculating the maximum sending rate of the continuation data, and allocating the continuation rate to each user; and performing data continuation according to the continuation rate. The technical scheme of the application can realize the optimization processing of the historical data continuation of the periodic broadcast information, solves the conflict problem caused by the network bandwidth of the historical data and real-time data, and improves the timeliness of the historical data continuation without affecting the real-time data by using the method.

The invention discloses a method and system for establishing and maintaining a backbone subnet in a mobile ad hoc network, and the method comprises the steps: dividing nodes in a network into different node types according to a current state, and enabling the node types to comprise an assigned node, an isolated node, a common node and a backbone node; the backbone node periodically broadcasts the beacon, and the surrounding nodes of the backbone node perform node conversion according to the received backbone node beacon; if the isolated node receives the beacon of the backbone node, the isolated node becomes a common node; if the backbone node beacon is not received within the preset time, the isolated node is changed into a backbone node after timeout; if the common nodes receive the backbone node beacons, the common nodes become backbone nodes based on self-election according to the backbone node beacons; and the backbone node judges whether redundancy exists or not according to the received beacons of other backbone nodes, and if yes, the backbone node is changed into a common node based on self-cutting. According to the invention, the network overhead is reduced, and efficient networking and transmission are realized.

A method of controlling a base station in a telecommunications network to disable or continue periodic broadcast of a system information block one, SIB1, is provided. The method comprises broadcasting an indication that periodic broadcast of the SIB1 is scheduled to be disabled. In option a), the method further comprises: receiving, from a User Equipment, UE, an indication that the UE requires periodic broadcast of the SIB1; and controlling the base station to continue periodic broadcast of the SIB1. In option b), the method further comprises: determining that no indication that a UE requires periodic broadcast of the SIB1 has been received during a predetermined period of time; and controlling the base station to disable periodic broadcast of the SIB1.

The invention provides a tire pressure monitoring system and method. The system comprises a controller and a plurality of tire pressure sensors, the controller sends a periodic broadcast signal with response, distributes a corresponding periodic sub-broadcast signal number and a response slot number to the tire pressure sensor through a Bluetooth channel, and sends time synchronization information to the tire pressure sensor; the above process is repeated until the corresponding periodic sub broadcast signal numbers and the response slot numbers are distributed to all the tire pressure sensors, and networking between the controller and the multiple tire pressure sensors is completed; and when the next periodic broadcast signal arrives, each tire pressure sensor calculates the wake-up time and response time of the tire pressure sensor based on the time synchronization information, receives the data packet sent by the controller based on the wake-up time in sequence, and feeds back tire pressure data to the controller at the corresponding response time. Channel competition is avoided, and the communication performance of the vehicle tire pressure sensor system is effectively improved.

The invention discloses an ONU (Optical Network Unit) gateway Mesh sub-machine software version synchronization method based on spreading type upgrading, which comprises the following steps of: performing initial triggering: when a host detects that a new version is available, sending an updating instruction to at least one core sub-machine, and receiving the updating instruction by the sub-machine for updating; performing spread synchronization, namely performing spread synchronization on the new version identification information to the adjacent sub-machine by the upgraded sub-machine through periodic broadcast; checking in a grading manner; and completing confirmation and state summarization. According to the embodiment of the invention, a hierarchical verification and retransmission mechanism is adopted, so that the integrity of version synchronization is ensured, the reliability is improved, and the method and the device can be applied to fiber to room (FTTR), enterprise-level fiber to room (FTTR)-B and broadband fusion terminal products.

The present invention discloses a TDOA scheduling system and method based on ultra-wideband positioning, wherein the scheduling system includes a synchronous base station, at least four ordinary base stations, a data transfer module, a PC terminal, and a mobile tag. The synchronous base station is used to periodically broadcast synchronization messages; the ordinary base station synchronizes the local clock with the synchronous base station time; the mobile tag is set on the positioning target and broadcasts the positioning request; the ordinary base station sends the positioning request time information to the PC terminal via the data transfer module, and the PC terminal uses the TDOA positioning algorithm to calculate the position of the mobile tag according to the positioning request time information. The system realizes the dynamic scheduling of the entire indoor positioning by determining the maximum number of messages allowed to be sent by the mobile tag within the transmission time and the range of the number of positioning transmissions allowed by the synchronous base station within the synchronous message broadcast period, thereby improving the scheduling efficiency when the total capacity of the system is limited.

The invention relates to a power line carrier multi-user communication method. The method comprises the following steps: dividing each leaf node into a plurality of target groups based on a power line channel measurement result, and carrying out frequency domain resource allocation on each leaf node of each target group; and then sending a multi-user transmission request frame to each target group through periodic broadcast, and finally receiving uplink data frames sent by each leaf node of each target group in parallel in the allocated frequency domain resources. According to the embodiment of the invention, through frequency domain resource allocation, each leaf node sends data in parallel, on one hand, frame synchronization and frame waiting time are reduced, and time domain resource waste is avoided; and on the other hand, based on frequency domain distribution of channel measurement, spectrum resources can be utilized to the maximum extent, and the leaf nodes in the same target group jointly occupy the channel, so that the transmission rate is improved.

Rotating a MAC address of a target STA to avoid being tracked by a nefarious actor. An AR sends a signal with multiple schedules to the target STA, each with a different timing to rotate the MAC address. The target STA can choose to use one of the schedules, use none of the schedules, or ask the AR to provide a modified schedule for the target STA to use. The AR can send another signal to the target STA with multiple schedules including the modified schedule.

This application provides an IoT data transmission method and system for exoskeleton status monitoring, relating to the field of exoskeleton IoT transmission technology. This application acquires wearer monitoring data and identifies gait intentions through an exoskeleton detection device, simultaneously predicting the relative motion trends and signal obstruction relationships between communication nodes. Then, the control nodes periodically broadcast beacons encapsulating motion vectors and link detection results. Nodes exchange beacons to construct a local network topology graph that fuses edge weights with detection results and link stability parameters. A hierarchical clustering structure is formed through distributed consensus optimization, and a highly stable cluster head is selected. Based on this structure, a multi-hop transmission path is established with the cluster head as a relay, maintaining a path concentration value characterizing transmission quality. When forwarding collaborative control commands, the next hop is probabilistically selected based on this value to complete command distribution, enabling adaptive, highly stable multi-hop transmission of collaborative control commands in exoskeleton IoT.

The invention provides a network topology construction method based on information fusion. The method comprises the following steps: a node collects information through an acquisition module and updates a neighbor link table; when a node evaluation period arrives, the evaluation module calculates a broadcast mode according to the collected information; if the broadcast mode is a periodic mode, performing periodic broadcast; if the broadcast mode is an incremental mode, performing incremental broadcast; and the nodes perform information diffusion according to own broadcast modes and update the global topology table, and when the global topology table changes, the routing table is recalculated. The method has the beneficial effects that self-adaptive switching between a periodic broadcast mode and an incremental broadcast mode is carried out by utilizing the network dynamic degree calculated by the evaluation module, and link information is updated in real time in combination with an information fusion mode, so that the network topology is constructed more efficiently to flexibly cope with variable network scenes.

A method of controlling a base station in a telecommunications network to disable or continue periodic broadcast of a system information block one (SIB1). The method comprises broadcasting an indicati

The invention discloses a massive alarm log noise reduction and correlation analysis method based on a dynamic aggregation log codebook. According to the method, association analysis based on the Apriori algorithm is achieved for the alarm logs, an association log sequence is generated, a specific data structure-log codebook (Log Code-book) is generated through regularization processing, and codebook of the automatic association relation is achieved. In addition, noise reduction processing and multi-device association analysis of the massive alarm logs of the devices are achieved through the log codebook, and the alarm log association processing effect is remarkably improved. According to the invention, through a double-period codebook aggregation framework based on period broadcasting and timing uploading, a relatively high log association analysis effect is maintained in a dynamic network topology environment, and relatively high robustness is represented in various network environments.

The invention relates to a mesh network operation method with a power saving mechanism. A mesh network operation method with a power saving mechanism is applied to a mesh network system, and comprises the following steps: acquiring a packet temporary storage state of a node device from an access point device by a root node device; each node device is provided with a node packet temporary storage state table for indicating a packet temporary storage state, and broadcasts a beacon signal containing the node packet temporary storage state table at an independent periodic broadcast time; enabling the node device to correspondingly receive the beacon signals broadcasted by the father node device and the child node device; enabling the node device to analyze the node packet temporary storage state table of the beacon signal so as to update the node packet temporary storage state table of the node device; and when the node device enters the dormancy state and the packet temporary storage state has the temporary storage indication level, waking up according to the preset schedule to carry out the packet transfer program.

A method can include monitoring at least one non-primary advertising channel for packets; determining if any of the packets received during a same periodic advertising interval of a periodic advertising link include synchronization data; in response to acquiring a packet with synchronization data, extracting synchronization data from the packet with synchronization data; and synchronizing to the periodic advertising link with the synchronization data to determine timing for at least one download window in each periodic advertising interval. The periodic advertising interval includes a plurality of periodic sub-intervals and the at least one download window corresponds to at least one of the sub-intervals. Corresponding devices and systems are also disclosed.

Reducing power consumption and improving efficiency of 5G base station sites, by controlling a base station in a telecommunications network to broadcast synchronisation signals, and particularly to se

The application discloses an air-ground communication method and device, a terminal and an ATG base station, and relates to the technical field of communication, to solve the problem that the existing air-ground communication system has long-time same-frequency interference on air mobile services. The method comprises the following steps: a terminal determines a first candidate ATG base station group according to position information of the terminal and preset air-to-ground ATG base station list information; the terminal sends a wake-up message to the first candidate ATG base station group to wake up the first candidate ATG base station group and trigger the first candidate ATG base station group to send system messages; and the terminal establishes a communication connection with a target candidate ATG base station in the first candidate ATG base station group when the target candidate ATG base station sends a system message. In this way, the ATG base stations along the air route are changed from a periodic broadcast mode to a long-time silent mode by the terminal waking up and triggering the ATG base stations to broadcast system messages, so that the long-time same-frequency interference of the periodic wide beam of the ground ATG base station on the air mobile services is effectively avoided.

The invention discloses a UWB-based low-power-consumption ranging and positioning system. The system comprises a plurality of beacons, a plurality of tags and a gateway, two wireless communication modes of UWB and Bluetooth BLE are built in the beacon, in a discovery state, the beacon closes all peripherals to enter a dormant state, Bluetooth BLE periodic broadcast is started, a data packet is sent periodically through the UWB, and a receiving waiting response is started; in a working state, a Poll packet is regularly and actively sent in a dormancy mode, receiving is started, whether correct response packet data is received or not is judged within set time, if yes, a Final packet is sent in a delayed mode to complete a distance measurement process, and if not, whether a discovery state is re-entered or not is judged according to receiving idle count; a three-axis sensor is arranged in the tag, and in a working state, distance measurement is completed through interaction of UWB signals and nearby beacons, and the distance is uploaded to a server. According to the invention, the beacon can be powered by the battery and can operate for a long time, stay wires deployed on site are omitted, and the installation complexity of the UWB positioning system is reduced.

A method of controlling a base station in a telecommunications network to activate periodic broadcast of a system information block one, SIB1, is provided. The method comprises receiving, from a User Equipment, UE, an indication that the UE requires periodic broadcast of the SIB1. The method further comprises controlling the base station to activate periodic broadcast of the SIB1.

The invention relates to a Bluetooth communication system, a Bluetooth access point device and an operation method. A first access point device of the Bluetooth access point devices performs periodic broadcast communication with the wireless device. A second access point device of the Bluetooth access point device performs a connection procedure together with the first access point device, wherein the connection procedure comprises: generating, by the first access point device, connection information about a wireless device to be communicated; receiving, by the second access point device, connection information from the first access point device; the first one of the first access point device and the second access point device broadcasts a connection request signal according to the connection information, so that the to-be-communicated wireless device identifies and receives the connection request signal; receiving, by a second one of the first access point device and the second access point device, a connection response signal from the wireless device to be communicated; and establishing, by the second access point device, a connection to the wireless device to be communicated.