152 results about "Broadcast transmission" patented technology

Systems and methods are described for transmitting broadcasts by Peripherals, receiving the broadcasts by Centrals, and communicating with a Backend by Centrals. Specifically, a Peripheral may generate and transmit an encrypted broadcast packet to a Central, the Central may transmit the encrypted observation information to the Backend, which may decrypt the broadcast packet. Additionally, a Central may transmit a request for authorization to connect to a Peripheral to the Backend. If authorized by the Backend, the Central may connect to the Peripheral. Further, a Central may receive a plurality of broadcasts over a period of time. The Central may store information about the broadcasts and, at the conclusion of the period of time, transmit the information about the broadcasts and the last-received broadcast to the Backend.

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.

The invention relates to a file broadcast transmission method and electronic equipment. The method is applied to a host, and comprises the following steps: S1, generating a data block corresponding to a target file, and sending the data block to a plurality of slaves, so that the slaves generate response signals according to the data block; s2, in the transmission process of the data block, acquiring response information of all the slaves so as to acquire response conditions of the slaves according to the response information of the slaves; s3, reducing the transmission speed of the data block and retransmitting the data block when the response of the slave fails, and executing the step S2; and S4, when all the slaves respond successfully, increasing the transmission speed of the data block, transmitting a new data block, and executing the step S2. According to the invention, the data transmission rate can be improved as much as possible while accurate data transmission is ensured.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information indicating that network coding is enabled for initial transmissions associated with a multicast / broadcast service (MBS) and indicating that network coding is enabled for retransmissions associated with the MBS. The UE may receive, via a multicast traffic channel or a dedicated traffic channel, an initial transmission associated with the MBS, wherein the initial transmission is associated with a first set of encoded packets. The UE may transmit a radio link control (RLC) status feedback message associated with the initial transmission. The UE may receive, via the multicast traffic channel or the dedicated traffic channel, a retransmission associated with the initial transmission, wherein the retransmission is associated with a second set of encoded packets. Numerous other aspects are described.

The invention provides a special digital interphone with recording and broadcasting functions for a railway, which is characterized in that an emergency recording key is pressed down, a master control MCU controls an audio channel management module to communicate a microphone to a recording module and starts the recording module to record, a playback key is pressed down, the master control MCU controls the audio channel management module to communicate the recording module to an audio power amplifier, and the audio power amplifier is started to play the sound. The main control MCU is used for controlling the recording module to output recorded audio to the loudspeaker for playing through the audio power amplifier, and controlling the audio channel management module to communicate the recording module to the radio frequency transceiving and modulation-demodulation module by pressing the emergency broadcast key; and controlling the recording module to output the recorded audio to the radio frequency transceiving and modulation-demodulation module for modulation, and starting radio frequency periodic automatic emission, so as to realize emergency broadcast emission. According to the invention, the limitation that a traditional interphone depends on manual real-time broadcasting is solved, the dangerous case response speed is obviously improved, and the reliability of emergency communication is improved.

The invention relates to a broadcast emission signal optimization method based on multi-antenna cooperation, and the method comprises the steps: constructing a multi-antenna cooperation broadcast emission system which comprises a central control unit, a distributed antenna array, an environment perception module and a terminal feedback module; real-time channel state information (CSI) is collected through the environment sensing module, and a dynamic propagation environment map is constructed; and optimizing a radiation pattern of the antenna array by adopting a three-dimensional beam forming algorithm based on the propagation environment map. According to the multi-antenna cooperative broadcast emission signal optimization method, a cooperative architecture of the central control unit, the distributed antenna array, the environment sensing module and the terminal feedback module is adopted, dynamic beam forming and power optimization are achieved, the coverage uniformity of broadcast signals is remarkably improved, and blind areas and overlapped interference areas are reduced; the energy utilization efficiency is improved, the energy waste caused by ineffective radiation is reduced, the self-adaptive capability of the system is enhanced, and the channel environment change can be responded in real time.

There is provided techniques for selecting agent entities to broadcast local model parameter vectors in an iterative learning process. A method is performed by a coordinator entity. The method, for each iteration of the iterative learning process, comprises obtaining parameters from agent entities. The parameters pertain to a utility for each of the agent entities to broadcast its local model parameter vector for the iteration. The method, for each iteration of the iterative learning process, comprises selecting K<N agent entities to broadcast their local model parameter vector for the iteration by applying a selection criterion to the obtained parameters. The method, for each iteration of the iterative learning process, comprises sending information that informs the N agent entities of the selected K agent entities.

Techniques for suppressing the flooding of link-local multicast and broadcast traffic are provided. In certain embodiments, these techniques include receiving, by a network device, a link-local multicast or broadcast message from an endpoint, where the message pertains to a networking protocol that uses link-local multicast and / or broadcast transmissions; dropping, by a data plane of the network device, the message in hardware, such that the message is not flooded on the local network segment of the endpoint; copying, by the data plane, the message to the device's central processing unit (CPU); and processing, by software running on the CPU, the message in accordance with the message's networking protocol (and in a manner that eliminates the need to flood the message).

The invention discloses a data transmission method based on neighbor domain broadcast. The method comprises the following steps: acquiring network topology structure information and routing table information; acquiring source node information, to-be-sent data and destination node information; performing neighborhood analysis processing on the source node information and the network topology structure information to obtain a source node neighborhood node set; and according to the network topology structure information, the routing table information and the source node neighborhood node set, performing neighborhood broadcast transmission processing on the source node information, the to-be-sent data and the destination node information to complete the data transmission process of the to-be-sent data. According to the method, neighbor domain broadcast and unicast are combined, transmission of network data is completed, the adaptability of the mobile ad hoc network to node movement is improved, and the method can be used for solving the problem of supporting node mobility by centerless wireless networks such as a wireless mobile ad hoc network and a sensor network.

The invention relates to the technical field of digital audio transmission, in particular to a self-adaptive error correction method and system in broadcast digital audio transmission, and the method comprises the steps: obtaining audio data in a broadcast digital audio transmission network; obtaining an error rate in the audio data transmission process; selecting a matched error correction mode based on the error rate; performing error correction processing on the audio data according to the error correction mode; audio data subjected to error correction processing are sent through a broadcast transmission channel, firstly, through real-time error rate monitoring and self-adaptive error correction mode selection, the method can quickly respond to changes of channel conditions, the most suitable error correction strategy is selected under different error rate levels, and the anti-interference capacity and adaptability of a system are greatly improved. This is particularly effective in mobile reception and complex urban environments, which can significantly reduce audio quality degradation and transmission disruption.

Methods, systems, and devices for wireless communication are described. The method may include receiving, from a base station, a broadcast transmission including a reference signal configuration for communication between the base station and the UE while the UE is operating in a first mode, the reference signal configuration indicating one or more reference signal parameters, and the first mode being an idle mode or an inactive mode; receiving one or more reference signals from the base station according to a reference signal configuration when operating in the first mode; and determining one or more channel measurements based on the one or more reference signals received from the base station.

The application provides an emergency broadcast message transmission system and method, comprising: an emergency broadcast platform, a transmission coverage network and an emergency broadcast access device; the emergency broadcast access device comprises an embedded multi-channel message access card and a fire message access card, the fire message access card comprises a fire broadcast controller; the emergency broadcast platform acquires an emergency broadcast message, compiles the emergency broadcast message to generate an emergency broadcast transmission instruction, and sends the emergency broadcast transmission instruction to the transmission coverage network; the transmission coverage network sends the emergency broadcast transmission instruction to the emergency broadcast access device through a corresponding channel; the embedded multi-channel message access card performs unsealing, signature verification and analysis processing on the emergency broadcast transmission instruction to obtain the emergency broadcast message; the fire message access card performs protocol adaptation and re-encapsulation processing on the emergency broadcast message to obtain a re-encapsulated emergency broadcast message; and the fire broadcast controller distributes and broadcasts the re-encapsulated emergency broadcast message in a fire broadcast system.

To provide an overlapping contact analysis method that can simply and reliably analyze the overlapping contact of broadcast content and a web service with each other.SOLUTION: An overlapping contact analysis method is a method for, when broadcast content transmission transmitting broadcast content through broadcasting and a web service compared with the broadcast content via a network are provided, analyzing the overlapping contact of the broadcast content and the web service with each other, and the method includes a digital ID attribute table generation step (STEP 10), a television digital attribute-enabled table generation step (STEP 20), a television ID attribute generation step (STEP 30), and a cross device matching table generation step (STEP 40).SELECTED DRAWING: Figure 1

The present invention provides a broadcast sending method, a sending system and a computer-readable storage medium, which belong to the field of communication technology. The method described in the embodiment of the present application is to register the registration information of the application to the broadcast manager, add it to the maintenance list, and report it to the system and other applications; the system specifies the broadcast types and processing priorities that the application can receive and process; the application receives and processes the broadcast information according to the preset broadcast types and / or processing priorities received and processed in the maintenance list of the system; thus, the broadcast sending method described in the embodiment of the present application can select the application to send and process the broadcast information in a targeted manner, has a strong purpose, can greatly reduce unnecessary broadcast information sending and processing procedures, and avoid the redundancy of the process of non-targeted and extensive sending or receiving of broadcast information, thereby greatly improving the stability of system information transmission and effectively preventing the loss of system resources.

The embodiment of the invention discloses a mobile terminal and a communication method thereof, a communication network architecture and a communication system, and the mobile terminal obtains an initial message packet, and carries out data transmission channel decision according to the transmission demand of the initial message packet. And packaging the initial message packet into a general protocol data packet and / or a broadcast data packet according to a decision result, and sending the general protocol data packet and / or the broadcast data packet by adopting a corresponding data transmission channel. Therefore, according to the embodiment of the invention, the communication protocol architecture of the mobile terminal supports the general protocol transmission channel and the broadcast transmission channel, so that the data transmission delay can be reduced by adopting the broadcast transmission channel or dual-channel transmission data; when the requirement for transmission reliability is high, double-channel data transmission can be adopted to ensure the reliability and stability of data transmission.

A machine automation system for controlling and operating an automated machine. The system comprises a controller and a sensor bus comprising a central processing core and a multimedia transport intranet for enabling dynamic bursting for a broadcast transmission scheme. Wherein messages are burst from the nodes to the central processing core and broadcast from the central processing core to all nodes.

The invention provides a distributed multi-channel multi-source random broadcast transmission scheduling method and system, and belongs to the field of wireless communication. The method comprises the following steps: initializing a node state, setting a source node as an active node, and setting other nodes as inactive nodes; for active nodes, channel selection of each node is kept unchanged in each round containing continuous time slots by adopting a round-based channel selection strategy; constructing a mapping relation between channels by using a pseudo-random channel mapping mechanism, and determining a final participating channel; when the inactive node receives a packet, the inactive node switches to an active state; the active node sends the first packet with the initial sending probability, and adjusts the sending probability according to a packet sending probability dynamic adjustment strategy; and when the number of packets sent by the nodes at high probability reaches the number initially stored by the source nodes, the packets initially stored by the source nodes are propagated to all the nodes of the whole network. The method can get rid of dependence on node degree information, and effectively resist frequency sweeping, blocking and other interferences.

The utility model discloses a broadcast transmission controller, which comprises: a main controller, a main identification module, a substitute identification module, a switch detection module and a switch control module; the main identification code output end of the main identification module is connected to the main identification code input end of the main controller, the enable output end of the main identification module is connected to the enable input end of the main controller, the output end of the switch detection module is connected to the first state input end of the main controller, the substitute identification code output end of the main controller is connected to the substitute identification code input end of the substitute identification module, and the control output end of the main controller is connected to the input end of the switch control module; the broadcast transmission controller of the utility model is helpful to realize a highly intelligent and highly automated backup transmission system through the connection and coordination among the main controller, the main identification module, the substitute identification module, the switch detection module and the switch control module, reduces the work intensity and improves the efficiency of the substitute broadcast failure frequency.

A reception method for receiving a broadcast signal is disclosed. The reception method according to embodiments may comprise the steps of: receiving a broadcast signal; physical layer processing the broadcast signal to obtain link layer packets; link layer processing the link layer packets to obtain UDP / IP packets; UDP / IP layer processing the UDP / IP packets to obtain first data packets based on a first delivery protocol or second data packets based on a second delivery protocol; and processing the first data packets or the second data packets to obtain service data for a first service or service data for a second service.

Various embodiments enable broadcast communication security. Various embodiments enable authentication of broadcast communications. Various embodiments can enable asymmetric authentication and integrity protection of small size messages such as one or more signed messages with a total length of 250 bytes or less. Various embodiments can support encryption signature of beacon type messages using certificates. Various embodiments can include generating a beacon type message, encrypting signing the beacon type message using at least in part a certificate to generate a signed beacon message, and issuing the signed beacon type message in one or more broadcast transmissions in combination with or independent of certificate information used to verify the signed beacon message.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products related to multi-radio spectrum sharing (MRSS) cell access are described. One method may include receiving, in a cell access broadcast channel, a cell access broadcast transmission associated with a first radio access technology, determining that cell access information associated with the first radio access technology is received in the cell access broadcast transmission, determining that cell access information associated with a second radio access technology is received in the cell access broadcast channel, determining the cell access information associated with the second radio access technology based on reserved bits in the cell access broadcast channel and the cell access information associated with the first radio access technology, and receiving cell system information associated with the second radio access technology using the determined cell access information associated with the second radio access technology.

Disclosed herein are a method for generating a broadcast transmission signal based on signaling encoding using a polar code and an apparatus for the method. The apparatus for generating a broadcast transmission signal includes a polar encoder configured to generate a polar codeword by encoding an input bit sequence based on a polar code, a rate matcher configured to select a rate matching method in consideration of a mother matrix size (N) of the polar code and a length of a transmission bit sequence (E), and generate the transmission bit sequence from the polar codeword using the selected rate matching method, and an additional parity generator configured to generate additional parity bits in consideration of the rate matching method.

Invention is a method for a system comprising plurality of NB-IoT devices (200) and at least a NB-IoT base station (100) for serving said NB-IoT devices (200), performing a random access procedure. It is characterized by comprising steps of: broadcasting transmission parameters comprising a success backoff time by said NB-IoT base station (100), and comprising following steps realized by NB-IoT device (200); receiving transmission parameters, transmitting a random access preamble to NB-IoT base station (100), if it is determined that random access is successful after transmitting said random access preamble, transmitting another random access preamble to NB-IoT base station (100) after said success backoff time.

A transmission method includes: generating a frame for transfer which stores one or more first internet protocol (IP) packets storing content, and one or more second IP packets each including reference clock information which indicates a time for a playback of the content; and transmitting the generated frame through broadcasting. In the generating, header compression is performed on the one or more first IP packets and the header compression is not performed on the one or more second IP packets.

The invention discloses an image correction method and device, electronic equipment and a readable storage medium, the method is applied to the technical field of image processing, and the method comprises the following steps: broadcasting and transmitting a to-be-processed image to at least one computing node in a local area network; obtaining a correction result fed back by each computing node; the correction result is obtained after the at least one computing node carries out correction processing on a target area in the to-be-processed image according to the computing power of the computing node; and splicing the correction results to obtain a target correction result corresponding to the to-be-processed image. According to the invention, the image correction process of local processing can also be processed in parallel in a plurality of computing devices in a local area network, and the image correction efficiency is improved.

The utility model relates to a wireless interpreter based on Beidou + RFID technology, which comprises a wireless transmitter and a wireless receiver, and the wireless transmitter comprises a wireless transmitter main device and a wireless transmitter auxiliary device. A wireless explainer main equipment transmitting and receiving part circuit and a wireless explainer auxiliary equipment transmitting and receiving part circuit are integrated on the wireless transmitter, and a wireless receiver receiving part, a Beidou part, an RFID part and other auxiliary circuits are integrated on the wireless receiver. The PA circuit is used for amplifying transmitted and received signals; the Beidou part circuit is used for realizing outdoor positioning of a transmitting receiver; the ultrahigh-frequency RFID tag is used for realizing indoor positioning, identity recognition and rapid entry functions; the battery management circuit is used for realizing battery charging management; the antenna circuit is used for transmitting and receiving signals, and the voice circuit is used for converting voice signals.

The invention provides a method and a system for transmitting streaming media live broadcast content based on a one-way broadcast network. The method comprises the following steps: acquiring a streaming media live broadcast data stream; performing real-time encapsulation on the streaming media live broadcast data stream according to a special encapsulation protocol to obtain a broadcast data packet; generating an information table, wherein the information table is used for marking the position of the broadcast data packet in the TS; wherein the information table comprises a PSI table or an SI table; packaging the broadcast data packet and the information table according to a DVB protocol to obtain a TS packet; sending the TS packet to a one-way broadcast network, and carrying out broadcast transmission through the one-way broadcast network; and the infinite-length content transmission of the streaming media data is realized according to the special encapsulation protocol, so that the user experience is improved.

This disclosure relates to parallel inference methods, apparatuses, devices, and media for multiple LoRA large models, and pertains to the field of deep learning technology. By adding a dedicated process for the LoRA model, it achieves decoupling and separate management from the original large model process at the process level. At the system architecture level, it realizes isolation and parallel computing of the basic large model and multiple LoRA models in terms of computing and storage resources. Compared with traditional methods that deploy the large model and LoRA models on the same device, this disclosure can deploy more LoRA models and improve inference concurrency. Before each iteration of inference, the metadata data is synchronized within the LoRA process group, and the input data is controlled to be broadcast only within the large model process group, avoiding communication and storage redundancy caused by broadcasting input data to the LoRA process and optimizing preprocessing efficiency. By separating the LoRA process and the large model process for parallel operation, efficient separation and collaboration of inference are achieved.

A method for determining an instantaneous phase difference between time bases of at least two location anchors for a desired point in time (t), each of the location anchors having transmitting and receiving access to a joint broadcast transmission medium and a respective time base for measuring time, wherein a first of the location anchors broadcasts a first broadcast message at least twice; the first location anchor and at least a second of the location anchors receive the first broadcast messages; the second location anchor broadcasting a second broadcast message at least twice; and the second location anchor and at least the first location anchor receive the second broadcast messages. The location server calculates the instantaneous phase difference from a determined first and second clock model functions and from a time elapsed between a reference point in time and the desired point in time t.

The invention discloses an OTA upgrading method and system based on 5G NR broadcast, belongs to the technical field of 5G NR broadcast, and aims to solve the technical problem of how to improve the OTA upgrading efficiency, reduce the cost and improve the OTA upgrading safety and user experience. According to the technical scheme, the method comprises the steps of upgrading plan making and upgrading information processing, wherein an OTA upgrading server makes a detailed OTA upgrading plan according to the type and version condition of terminal equipment, and the upgrading time, the upgrading object and the upgrading content are determined; according to the OTA upgrading plan, upgrading information including an application ID, a version description, verification information and an applicable terminal identifier is generated and arranged into a format suitable for 5G NR broadcast transmission, the upgrading information is encrypted, encrypted upgrading information is generated, and the upgrading information, the encrypted upgrading information and the OTA upgrading plan are stored at the same time; broadcasting resource allocation and session establishment; broadcasting upgrading information; and the terminal equipment receives and processes.