202results about "Broadcast transmission systems" patented technology

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. The method begins with a first node associating with a second node, and the first node capturing relevant node information. The first node transmits the relevant node information to the server via the second node operating as an intermediary for indirect communication with the server. A third node captures relevant node information and transmits the relevant node information to the server without using the second node as an intermediary or bridge to the server. Each of the first node, the second node, and the third node may be wireless transceiver-based nodes and respectively implemented as integrated circuits.

In aspects of audio broadcast management based on audio disruption, a wireless device receives an audio broadcast from an audio source device, and initiates a connection to the audio broadcast. The wireless device detects an audio disrupt event of the audio broadcast based on audio frequency data, audio intensity data, or a predefined time limit associated with the audio broadcast. In response to this, the wireless device initiates a disconnection from the audio broadcast, and initiates a connection to a new in-range audio broadcast.

Systems and apparatus are described for enhanced communication within a wireless node network. A system includes a server and multiple nodes, where each node can generate sensed data about or around the node and receive external data from another node according to a server tracked logical connection between those nodes. At least a subset of the nodes can connect to the server using a first connectivity mode or an intermediary connectivity mode. In the first connectivity mode, a first node of the subset can transmit a message directly to the server without using intermediary ones of the nodes (where the message includes sensed data about or around the first node). In the intermediary connectivity mode, the first node can receive the external data from the another node and transmit the external data to the server (where the external data is sensed data about or around the another node).

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. A first subset of nodes transmits first data messages to the server without using an intermediary device where the first data messages include sensed data generated by the nodes of the first subset of the plurality of nodes about or around the nodes of the first subset of the plurality of nodes. A second subset of the plurality of nodes receives external data from the other of the nodes. The second subset of the plurality of nodes are intermediary devices that transmit the received external data to the server, wherein the received external data from the other of the nodes comprises sensed data about or around the other of the nodes.

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. The method begins with a first node associating with a second node, and the first node capturing relevant node information. When the first node is in a first connectivity mode, the relevant node information is transmitted to the server via the second node operating as an intermediary for indirect communication with the server. When the first node is in a second connectivity mode, the first node transmits the relevant node information to the server without using the second node as the intermediary or bridge to the server. Each of the first node and second node may be wireless transceiver-based nodes and respectively implemented as integrated circuits.

In aspects of automatic selection of audio broadcast based on direction, a media playback manager detects an available Bluetooth Low Energy (BLE) audio broadcast from a media device. Based on a location of a tag associated with the media device, the media playback manger determines a position of a wireless device relative to the media device. The media playback manager then receives the BLE audio broadcast at the wireless device based on the position of the wireless device relative to the location of the tag that is associated with the media device.

Described herein are systems and methods for dynamically provisioning network communications systems that use a segmented network architecture to provide wireless access to a satellite network to ultimately provide connectivity to an external network such as the Internet. The disclosed technologies enable dynamic and automated provisioning of network infrastructure that provides wireless access over a geographic area. The disclosed technologies also enable self-healing network nodes, or network nodes that can automatically reconfigure themselves to maintain network connectivity in the case that another network node ceases to function properly. Advantageously, this allows the disclosed network communications systems to be deployed, installed, and maintained by relatively unskilled operators or technicians. This may be particularly beneficial in remote communities where there is a lack of skilled network engineers.

Methods, systems and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. The method begins with a first node associating with a second according to a server tracked logical connection authorized by the server. The first node captures relevant node information including shared data from another of the nodes. The first node transmits, when operating in a first connectivity mode, at least the shared data to the server using the second node operating as an intermediary for indirect communication with the server. The first node transmits, when operating in a second connectivity mode, at least the shared data to the server without using the second intermediary node by having the first node transmitting a message with at least the shared data to the server while avoiding the need to first send the message to the second node during transit to the server.

To deal with the issue in which delay of a system causes delay of display and the delay of display causes danger on viewers when emergency information sent when disasters occur is distributed in the same manner of transfer as the manner for transferring a picture sound content.SOLUTION: In the present invention, a picture sound distribution system formed of a distribution system for distributing a picture sound content and a reception terminal for receiving a picture content by a net distribution displays emergency information sent when disasters occur, with smaller delays than in the case of the picture sound content.SELECTED DRAWING: Figure 1

According to an embodiment of the present disclosure, a user equipment (UE) may receive a multicast physical downlink shared channel (PDSCH) scheduled by first downlink control information (DCI), receive a unicast PDSCH scheduled by the second DCI, and transmit a single uplink signal on which HARQ feedback information on each of the multicast PDSCH and the unicast PDSCH is multiplexed.

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. The method begins with a first node associating with a second node, and the first node capturing relevant node information. The first node transmits the relevant node information to the server via the second node operating as an intermediary for indirect communication with the server. A third node captures relevant node information and transmits the relevant node information to the server without using the second node as an intermediary or bridge to the server. Each of the first node, the second node, and the third node may be wireless transceiver-based nodes and respectively implemented as integrated circuits.

A transmission system includes encoding and modulation means for encoding and mapping a plurality of frames. Each frame encapsulates a set of information bits of the data traffic, and is associated with a first modulation order and a coding rate, to a plurality of frames of encoded and modulated symbols; physical layer framing means arranged for inserting synchronization symbols taken from a second modulation order into at least one frame of encoded and modulated symbols of said plurality, to obtain a plurality of physical layer frames. The transmission system has expansion means to replace, if the second modulation order is smaller than the first modulation order, at least a subset of the synchronization symbols inserted by the physical layer framing means by symbols from the same constellation as the modulated symbols in the frames of encoded and modulated symbols.

A method and apparatus for multicast broadcast service. The method implemented at an access and mobility management function (AMF) entity comprises receiving a message for starting a multicast / broadcast (MB) session from a session management function (SMF) entity. The message comprises first location information. The method further comprises sending an MB session joining accept, reject, or cancel message to at least one terminal device based on the first location information.

In one aspect, an example method includes (i) encountering, by a media playback device of a vehicle, a trigger to update a list of currently tunable radio stations; (ii) based on encountering the trigger to update the list of currently tunable radio stations, updating, by the media playback device, the list of currently tunable radio stations using a location of the vehicle and radio station contour data stored in a local database of the media playback device; and (iii) displaying, by the media playback device, a station list using the list of currently tunable radio stations.

In aspects of audio broadcast management based on audio disruption, a wireless device receives an audio broadcast from an audio source device, and initiates a connection to the audio broadcast. The wireless device detects an audio disrupt event of the audio broadcast based on audio frequency data, audio intensity data, or a predefined time limit associated with the audio broadcast. In response to this, the wireless device initiates a disconnection from the audio broadcast, and initiates a connection to a new in-range audio broadcast.

The described technology is generally directed towards an adapting radio access network coverage for location-based alerts. A group of cells and / or cell sectors can be selected for sending an alert, according to selection techniques described herein. The selection techniques can provide a target level of cellular coverage for a geographic area, while avoiding over-inclusion of cells and consequent dissemination of alerts to subscribers outside the geographic area. The target level of coverage can comprise a desired amount of service overlap, to achieve a corresponding level of confidence that subscribers within the geographic area will receive an alert. The selection techniques can furthermore close identified coverage gaps within the geographic area.

Disclosed technology includes a sensory prosthesis configured to automatically select a broadcast channel based on a comparison with a signal from a sensor of the sensory prosthesis. In an example, a sound processor automatically connects to an appropriate wireless broadcast audio channel by comparing the sound the sound processor receives on a microphone with the audio the sound processor receives from each of the wireless broadcast channels that the sound processor can receive. If the sound processor finds a match between the sound from the microphone and the sound from a broadcast, then the sound processor automatically selects the matching wireless broadcast channel. The sound processor then provides auditory stimulation to the recipient based on the selected broadcast channel.

The invention relates to a quasi-synchronous TETRA single-frequency network (sQGN) comprising at least two or more base stations (sTBS) with disjoint or at least partially overlapping radio cells (CA), wherein the base stations (sTBS) are interconnected for synchronous or quasi-synchronous single-frequency transmission of communication signals (RC) in the TETRA standard to at least one mobile station (MS). It is proposed that selective single-frequency radiation of communication signals (RC) by a base station (sTBS) can be controlled based on a reception criterion of the mobile station (MS) with respect to the base stations (sTBS). In a secondary aspect, a method for operating the aforementioned TETRA single-frequency network (sQGN) is proposed, wherein single-frequency radiation of communication signals (RC) to a mobile station (MS) is selectively carried out via at least one base station (sTBS) based on a reception criterion.

Methods and apparatus are described for enhanced node communication within a wireless node network having nodes and a server. The method begins with a first node associating with a second node, and the first node capturing relevant node information including shared data from another of the nodes. The first node transmits the relevant node information to the server via the second node operating as an intermediary for indirect communication with the server. A third node captures relevant node information and transmits the relevant node information to the server without using the second node as an intermediary or bridge to the server. Each of the first node, the second node, and the third node may be wireless transceiver-based nodes and respectively implemented as integrated circuits.

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.

Some embodiments of the disclosure provide an isolator which includes a body, a first circuit module, and a second circuit module. In some examples, the first circuit module is arranged at a first connecting port of the body and includes a first integrated circuit board, a first shell surrounding the first integrated circuit board, a first signal processing circuit penetrating through the first integrated circuit board, and a joint sleeved on an insulating bushing. The joint partially surrounds the first signal processing circuit. A first end portion of the first signal processing circuit is electrically connected to a first contact element. The second circuit module is arranged at a second connecting port of the body and includes a second integrated circuit board, a second shell surrounding the second integrated circuit board, and a second signal processing circuit extending along a length direction of the second integrated circuit board.

The invention discloses a multi-path driver passenger full duplex emergency call and stop announcement broadcast coexistence method, and relates to the technical field of audio processing. According to the scheme, station reporting broadcast and multi-path talkback signals are transmitted at the same time through a single MVB bus, coexistence of multi-path driver passenger emergency calls and station reporting broadcast and talkback of a driver with multiple passengers at the same time are achieved, hardware redundancy of a traditional discrete communication channel is omitted, the system complexity and cost are reduced, and the communication efficiency is improved. According to the weight, the multiple paths of talkback audio data are combined, the voice quality of the multiple paths of audio signals is improved, and signal conflicts are also avoided.

The invention discloses a fire-fighting emergency broadcasting system capable of automatically broadcasting a fire alarm position, relates to the technical field of fire-fighting emergency, and is used for solving the problem that fire alarm information cannot be clearly spread when a fire disaster occurs. Comprising a fire alarm controller module, a broadcast conversion module, a broadcast power amplification module, an alarm control module and a data storage module which are in signal connection. The fire alarm controller module judges the occurrence and position of a fire and transmits fire alarm information to the broadcast conversion module. The broadcast conversion module generates an alarm statement containing position information, synthesizes a voice file and splices the voice file with an alarm sound effect to form an audio signal. The broadcast power amplifier module adaptively adjusts output power according to environmental noise, and supports regional loudspeaker control and automatic gain adjustment. And the alarm control module realizes alarm intelligent sorting and scheduling through event priorities. The data storage module records system operation and fire alarm information and supports analysis and maintenance. According to the invention, the real-time performance and reliability of the fire-fighting broadcasting system are improved.

Method for changing connections between stations of a station group and associated station group. The present invention relates to a method for changing connections between stations (16-1, 16-2, 16-3) of a station group (14), between a first state, in which each station (16-1, 16-2, 16-3) of the station group (14) is connected to a first satellite (20-1) of a plurality of satellites, and a second state, in which each station (16-1, 16-2, 16-3) of the station group (14) is connected to a second satellite of the plurality of satellites, distinct from the first satellite (20-1), each satellite (20-1) being mobile relative to a geographical area in which the stations (16-1, 16-2, 16-3) of said station group (14) are positioned, each station (16-1, 16-2, 16-3) being capable of establish a connection with each satellite (20-1) for a predetermined period of presence of said satellite (20-1), considered for said geographical area,The change process includes an election phase and a switchover phase. Figure for the abbreviation: Figure 1,

Methods for handling Media-based Modulation (MBM) in a wireless network (1000) by a Mission Critical (MC) Gateway (GW) User Equipment (UE) (300) are provided. The method includes storing information associated with an identifier at the MC gateway UE (300) in response to receiving an MC gateway Multimedia Broadcast Multicast Services (MBMS) bearer announcement from an MC client (100). The MC gateway UE (300) uses the identifier and the information to activate for monitoring the MBMS bearer by the MC gateway UE (300). Further, the method includes sending an MBMS listening status report to the MC client (100) based on the MC GW MBMS bearer announcement. Further, the method includes establishing a communication channel with the MC client (100) based on a parameter to receive an MC service data from the MC gateway UE (300), where the MC gateway UE (300) forwards the MC service data to the MC client (100).

A broadcast signal transmission apparatus according to one embodiment of the present invention comprises: a first RF subframe signal generation unit for generating at least one first RF signal; a second RF subframe signal generation unit for generating at least one second RF signal; a first RF unit for generating, on the basis of at least a portion of the at least one first RF signal, at least one first RF transmission signal corresponding to a first RF channel from among the first RF channel and a second RF channel, which are channel-bonded; and a second RF unit for generating, on the basis of at least a portion of the at least one second RF signal, at least one second RF transmission signal corresponding to the second RF channel.

A data transmission method includes receiving, by a first access network device, local service indication information and a service identifier from a core network device. The local service indication information indicates that a service to which a data packet of a first session belongs is a local service. The data transmission method also includes sending, by the first access network device, third indication information to a second access network device. The third indication information indicates that the service is the local service.

A system to broadcast an audio signal includes user equipment (UE) configured to concurrently broadcast the audio signal to a plurality of receiving devices based on a broadcast template. As the UE broadcasts the audio signal, the UE receives reception data from the plurality of receiving devices indicating the quality of the reception of the audio signal. Based on one or more event triggers occurring, the UE adjusts one or more broadcast parameters of the broadcast template based on the reception data received from the plurality of receiving devices. The UE then continues to broadcast the audio signal based on the adjusted broadcast parameters of the broadcast template.

One disclosure of the present specification provides a method by which a Session Management Function (SMF) provides a multicast service. The SMF performs the steps of: receiving a first message from a relay user equipment (UE), wherein on the basis of the relay UE receiving a join request of a first remote UE for a multicast group from the first remote UE, the first message includes (i) the join request of the first remote UE and (ii) information about the first remote UE, and on the basis of the relay UE wanting to join the multicast group by itself, the first message includes a join request of the relay UE; checking whether the join request included in the first message is a first join request for the multicast group from among the relay UE and one or more remote UEs receiving a network connection service from the relay UE.