249results about How to "Meet transmission needs" patented technology

A data transmission method is provided. The method includes obtaining configuration information, wherein the configuration information indicates transmission resources of a random access preamble and payload data corresponding to the random access preamble, transmitting the random access preamble and the payload data at the transmission resources, modulating the payload data using a modulation scheme supporting asynchronous transmission, and receiving feedback information, wherein the feedback information comprises an indication which indicates whether the payload data is successfully received. Various examples of the present disclosure also describe a method for receiving data with space multiplexing which is applied to a base station side, and further describe a terminal and a base station. Employing the examples of the present disclosure, transmission efficiency of long duty cycle and sporadic small data packets of a large number of devices in the Internet of Things in future communication systems can be improved.

The invention discloses an uplink control channel resource distribution method and device. The method comprises the following steps of: establishing a physical uplink control channel (PUCCH) resource table corresponding to uplink control information, wherein a time domain index of a PUCCH resource is set to be the minimum common multiples of various PUCCH repeated cycles supported by the PUCCH resource for transmitting the corresponding uplink control information; and during distribution of the PUCCH resource, finding out an available resource according to the resource table and the PUCCH repeated cycle of a current terminal, finding out an available resource within a range according to the resource table and a smaller PUCCH repeated cycle, and distributing the PUCCH resource to the current terminal according to the search results. Therefore, when the PUCCH resource is distributed to the terminal, the PUCCH repeated cycle of the terminal is considered, and the smaller PUCCH repeated cycle is also considered; under the condition that the uplink control channel resources in different cycles coexist, the transmission requirement of the current terminal can be met and the utilization rate of the uplink control channel resources is increased; and meanwhile, the resources can be selected according to the resource table designed by the embodiment of the invention, so the technology implementation is simplified.

The invention discloses a software-defined industrial time-sensitive heterogeneous network system and a resource scheduling method, and relates to the field of industrial communication. The inventiondiscloses a software-defined industrial heterogeneous time-sensitive network architecture. The software-defined industrial heterogeneous time-sensitive network architecture comprises an industrial field layer, an SDTSN (Software Defined Network) transmission layer and an industrial cloud platform, the invention discloses a software-defined industrial heterogeneous time-sensitive network resource hierarchical scheduling method. The method comprises a 5G technology-based multi-priority wireless scheduling mechanism considering burst data and a wired TSN multi-priority queue mapping and scheduling mechanism. The problems that an existing industrial communication mode is single, and the QoS requirements of industrial field mass data are different are solved, data streams with different QoS requirements can be dispatched in a centralized mode based on global information of a network, on-demand deterministic delivery of industrial heterogeneous data is achieved, full-process time-sensitive communication of a wireless and wired industrial heterogeneous network is achieved, and the time determinacy and the resource utilization rate of the TSN are greatly improved.

The invention provides a video special effect processing system comprising a video collecting module, a face detection module, a video special effect module and a video scaling module, wherein the video collecting module is used for collecting first resolution video data; the face detection module is used for carrying out face detection on the first resolution video data to extract face parameter; the video special effect module is used for carrying out special effect processing on the first resolution video data by utilizing the extracted face parameters; and the video scaling module is used for zooming out the first resolution video data subjected to the special effect processing into the second resolution video data, wherein a second resolution is less than a first resolution. On one hand, because the face detection is carried out based on a high resolution image, a more accurate face detection effect can be obtained; on the other hand, because the high resolution image is zoomed out to form a low resolution image suitable for transmission of instant communication software, the stable transmission of the video image can be ensured.

The invention discloses a tunnel building method and network equipment. The tunnel building method comprises the following steps: the IP address of first network equipment is obtained by the network equipment according to the address information of the first network equipment and sent by an authentication server, wherein the first network equipment is network equipment where destination end equipment with which the first network equipment is asked to be connected by a user is located; the IP address of the first network equipment serves as the destination address of the network equipment, a tunnel between the network equipment and the first network equipment is built, and the user and the tunnel are bonded so that the user can access the destination end equipment based on the tunnel. According to the tunnel building method and the network equipment, the network equipment can obtain the IP address of the network equipment where the destination end equipment that the user asks to access is located to build the tunnel used for message transmission for the user, the IP address of the network equipment where the destination end equipment is located does not need to be configured on corresponding network equipment manually when the tunnel is built, the complexity of manual configuration is reduced.

The invention discloses an information transmission method, a base station and a terminal. The method comprises steps that the base station determines first format information of DCIs of at least one terminal in multiple terminals according to quantity of the multiple terminals where data transmission should be carried out, wherein the first format information comprises SCIDs and DMRSes, wherein the SCIDs are used for scrambling antenna ports, the DMRSes correspond to different antenna ports and DMRS sequences used by every two DMRSes are mutually orthogonal; sending the first format information of the DCIs to at least one terminal in the multiple terminals; and using determined antenna ports corresponding to the DMRSes to send data to at least one terminal in the terminals so as to allow the at least one terminal in the terminals to receive data sent by the base station based on the first format information of the DCIs. The invention also discloses the base station and the terminal. According to the invention, use rate of spectrum resources is increased and requirements of MU-MIMO are met.

The invention relates to a control system of Ethernet and data report transmission method. Wherein, it is characterized in that: the control system according to the control protocol of two layers of Ethernet obtains the chain information of Ethernet; according to the chain information, building and maintain the network topology of Ethernet, the control system according to the connection built by said network topology requests to calculate the route between the terminal bridges, and transfer the path information according to the route setting; each network bridge data system according to the transfer path information to transfer the data report. The invention can realize the management of transmitted data in the Ethernet, to control the data flux, without changing the packing structure of Ethernet data plane, and without lower cost.

The invention discloses a wavelength division multiplexing single-fiber bidirectional data receiving and dispatching module, which comprises a wavelength division multiplexing module, a laser array, alight detector array and a light circulator; the laser array is aligned and coupled with a first input end of the wavelength division multiplexing module, the light detector array is aligned and coupled with a second output end of the wavelength division multiplexing module; a first end of the light circulator is connected to a first output end of the wavelength division multiplexing module, anda third end of the light circulator is connected to a second input end of the wavelength division multiplexing module; the second end of the light circulator is used as the input / output end of the light circulator and used for connecting with an external transmission fiber; the wavelength division multiplexing module is used for multiplexing the multiple wavelength light signals emitted by the laser array and demultiplexing the multiple wavelength light signals received from the single fiber head; the light signal in the light circulator can carry out the one-way transmission along the first end, the second end and the third end in order. The wavelength division multiplexing single-fiber bidirectional data receiving and dispatching module can realize the single-fire bidirectional transmission and is applied to the high-speed fiber interconnection of a data center.

The invention discloses a Faraday rotator suitable for a high-power opto-isolator. The Faraday rotator comprises a thermal compensation crystal, a half-wave plate, an iron ring, a first magnetic rotation crystal, a second magnetic rotation crystal, a first magnet and a second magnet. The first magnetic rotation crystal, the thermal compensation crystal, the half-wave plate and the second magnetic rotation crystal are laid out in the forward sequence of a Z axis, the iron ring is connected to the outside of the thermal compensation crystal and the outside of the half-wave plate in a sleeved mode, the first magnet is connected to the outside of the first magnetic rotation crystal in a sleeved mode, and the second magnet is connected to the outside of the second magnetic rotation crystal in a sleeved mode. When used for the opto-isolator, the Faraday rotator enables the opto-isolator to meet the requirement for high power of hundreds of watts and improves isolation degrees by at least 3dB.

The invention relates to a multi-document upload system, which comprises multi-document upload controller, document source and target end. Wherein, the controller is connected to the document source and target end. The invention also provides a relative method that first receiving the multi-document upload request, with which to obtain multi-document data from several document sources, at last packing the multi-document data in memory and uploading it to the target end. The invention can save time that avoids reading and writing disc frequently, and when the multi-document is stored in different document sources, it can reduce the hand-operated operation to improve the upload efficiency.

The invention provides a dual-frequency and dual-polarization common-aperture waveguide horn planar array antenna, which comprises square waveguide horns, waveguide orthogonal mode couplers, antenna units formed by the square waveguide horns and the waveguide orthogonal mode couplers and an arrangement mode of the plurality of antenna units on the plane, and is characterized in that the horn aperture of each square waveguide horn antenna is square in shape, and the structure of each square waveguide horn antenna is a three-layer step transition square pyramid horn; each waveguide orthogonal mode coupler is an orthogonal mode coupler of a longitudinal coning branch structure, a common port of the waveguide orthogonal mode coupler is connected with a waveguide port of the square waveguide horn to form to form a waveguide horn antenna supporting the dual-frequency and dual-polarization common aperture, namely, an antenna unit; and the antenna units are arranged on the plane so as to forma planar array antenna. The planar array antenna manufactured according to the technical scheme provided by the invention has the characteristics of dual frequency, dual polarization and common aperture.

The invention relates to a method for acquiring an alternating-current and direct-current transmission application range. The method includes building various alternating-current and direct-current transmission models with high-voltage grades from a power source to a receiving-end power grid under the condition of given transmission distances and transmission capacity; creating a comprehensive evaluation index system of an alternating-current and direct-current transmission mode with consideration of various factors such as power transmission characteristic, electromagnetic environmental characteristic and economical efficiency on the basis of the alternating-current and direct-current transmission models; and combining the alternating-current and direct-current transmission models by the aid of a comprehensive optimization process on the basis of the optimal combined weight and comprehensively optimizing the alternating-current and direct-current transmission mode in a plurality of groups of typical transmission scenes to acquire the application range of the alternating-current and direct-current transmission mode by means of summarization. The method has the advantages that the method has high reference value for constructing a future power grid, and particularly provides reference for selecting outgoing transmission modes for various major energy bases.

The invention provides a Bluetooth power regulation method and system. The Bluetooth power regulation method is applied to electronic equipment and comprises a step of obtaining a current signal value of Bluetooth equipment of a receiving terminal which communicates with the electronic equipment, a step of obtaining a current distance between the electronic equipment and the receiving terminal, a step of obtaining a signal threshold range which is matched with the current distance, and a step of adjusting the transmission power of the Bluetooth equipment of the electronic equipment according to the current signal value and the obtained signal threshold range. The invention also provides the Bluetooth power regulation system. The transmission power of Bluetooth can be accurately and effectively controlled, while a transmission requirement is satisfied, the Bluetooth consumption is dynamically adjusted, and the using experience of a user is improved.

The invention discloses a data transmission method, method and equipment, and a storage medium, and belongs to the technical field of networks. The method comprises the following steps: acquiring network quality data sent by each client; selecting an optimal transmission path for each service data based on the network quality data of each client and the transmission quality requirements of each service data; and based on the optimal transmission path, obtaining optimal transmission path configuration configured to each client and each proxy server, the optimal transmission path configuration comprising a next hop node when various service data is transmitted to each target network. According to the method, the optimal transmission path can be selected for the service data in a cross-regional data transmission network, and the data transmission quality is ensured.

This invention discloses a switch method including: A, a terminal sends a measurement report to a source play node, which exchanges information with a target play node for preparing terminal switch, B, the source node transmits context data to the target node and stores them, C, the target node carries out the switch operation, D, the terminal judges if the switch is succeeded, if so, the terminal sends the confirmation message to the target node, otherwise enters into step E, E, the terminal sends a fault message to the source node. This invention also discloses a switch system.

The embodiment of the invention discloses an Internet access method and apparatus, a mobile terminal and a storage medium. The method comprises the following steps: detecting whether a QoS parameter of a network currently used by the mobile terminal satisfies a first constraint condition of the QoS parameter of data service; if not, and the currently used network comprises one of a wireless fidelity WiFi network, a wired Ethernet network and a mobile data network, processing the data service by using at least two networks in the WiFi network, the wired Ethernet network and the mobile data network at the same time; or, if no, and the currently used network comprises two of the WiFi network, the wired Ethernet network and the mobile data network, processing the data service by using the WiFinetwork, the wired Ethernet network and the mobile data network at the same time, so that the processing speed and the processing quality of the data service are improved. Therefore, the transmissionrequirement of the data service of the mobile terminal is satisfied, and the mobile terminal has a good Internet access effect in the process of surfing the Internet.

The invention provides a sending method, a receiving method, a sending system, a receiving system, a sending device and a receiving device for IQ (in-phase quadrature) data. The sending method for IQ data includes: IQ data to be sent are divided into a plurality of data blocks, each data block comprises a plurality of IQ data, continuous n effective bits are intercepted from the highest bit of each IQ data of each data block, compressibility factors are determined according to the intercepted effective bits, compressed IQ data formed by the compressibility factors, sign bits and the intercepted effective bits and are sent, and data size of the IQ data is reduced greatly since partial data of each IQ data are intercepted to be effective data and the compressed IQ data are formed. Therefore, hardware equipment need not be improved, the existing hardware equipment is directly used, and the transmission requirement for optical port rate can also be met.

The invention discloses a network access type decision method. The method comprises the following steps: acquiring a data transmission rate when a visible light communication channel is unshielded under the current state of a user side; according to a known channel blocking parameter of the previous state and the data transmission rate when the visible light communication channel at the current state is unshielded, determining the access type with the maximum equivalent data rate as the access type of the user terminal at the current state according to a pre-trained nonlinear support vector machine model. The invention further provides a network access type decision device, a network switching control device and a computer readable storage medium. In a hybrid indoor wireless communicationnetwork environment composed of visible light communication and the traditional radio frequency communication, the user can comparatively accurately select the access type with the equivalent data rate at the current state under the condition that the actual channel block parameter is unknown, thereby effectively responding to the adverse influence caused by frequent switching and shielding blocking, and the demands on the transmission rate and the communication quality by the user are satisfied.

The embodiments of the invention disclose a data transmission method and related devices. The method may include the following steps that: a network device generates first downlink control signaling,wherein the first downlink control signaling carries a first quality of service (QoS) flow identifier and a reflected QoS identifier, wherein the reflected QoS identifier is used to indicate that theturning off of a terminal device or the enabling of a reflective QoS function; and the network device sends the first downlink control signaling to the terminal device by using a first data radio bearer (DRB). With the data transmission method and related devices provided by the embodiments of the present invention adopted, a current reflective QoS function can be effectively disabled when the terminal device does not receive a downlink data packet again.

The invention provides a train network control system and a train, and the system is characterized in that the system comprises one or more pieces of train-level system equipment, one or more pieces of vehicle-level system equipment, and an Ethernet communication network; the train-level system equipment, the control unit in the vehicle-level system equipment and the terminal equipment in the vehicle-level system equipment are connected through the Ethernet communication network; the Ethernet communication network adopts a ring topology structure, and comprises an Ethernet bus and two or moreEthernet switches, so that not only is the train wiring space saved, but also the data transmission rate and the network redundancy are improved, and the transmission requirement of large data volumeis met.

The embodiment of the invention discloses media data error correction transmission and error correction methods and devices, equipment and a storage medium. The media data error correction transmission method includes: grouping original media data packets according to a number order; for all sub-groups, carrying out real-time transport protocol (RTP) encapsulation on the original media data packets in the sub-groups to generate RTP media data packets of the sub-groups, sending the same to a destination terminal, and locally storing all the original media data packets according to the sub-groups; when it is determined that all the original media data packets in the sub-groups are stored, encoding all the original media data packets in the sub-groups, and generating redundancy packets of thesub-groups; and carrying out RTP encapsulation on the redundancy packets to generate RTP redundancy packets of the sub-groups, and sending the same to the destination terminal. The technical solutionof the embodiment of the invention can improve transmission effects of real-time audio-frequency and video data services, and thus satisfy transmission requirements of real-time multimedia data services.

The invention discloses a power line carrier path search method fusing a two-way automatic communication system (TWACS). The method comprises the following steps: A, using a TWACS signal as a path search signal of power line communication (PLC), and selecting nodes at moderate distances as relay nodes; B, determining an optimal relay node S; C, building a table of paths from a concentrator to center nodes of communication terminals, and building sub-path tables for distributed nodes; D, selecting a sub-optimal path when command information transmitted by the concentrator cannot be transmitted to a certain node, and carrying out a step E if the sub-optimal path is unavailable; E, repairing a path; and F, rebuilding a routing table for all sub-stations when the concentrator fails in transmitting command communication paths to a plurality of sub-node terminals according to the routing table.

The embodiment of the invention provides a photoelectric detector based on an InGaAs material and a manufacturing method of the photoelectric detector. The epitaxial structure of the photoelectric detector sequentially comprises a substrate, an InP buffer layer, an N +-InGaAs contact layer, an N-type InP, an InGaAsP band gap transition layer, an InGaAs intrinsic absorption layer and a P-type dopedgradient InGaAs light window layer from the bottom to the top, wherein the concentration of an InGaAs-doped material in the P-type InGaAs light window layer is gradually changed, an N-type ohmic electrode is led out from the N-type InP layer through the N +-InGaAs contact layer, and a P-type ohmic electrode is led out from the P-type InGaAs light window layer. The embodiment of the invention provides the photoelectric detector and the manufacturing method thereof. The light window adopts an InGaAs material with gradually changed doping as a P region structure, the structure can establish a diffusion self-built electric field in the P region, and the self-built electric field effectively overcomes the self-absorption problem of photon-generated carriers, so that the quantum efficiency andthe response speed of the photoelectric detector are effectively improved, and the transmission requirement of a high-speed communication system is met.

The invention discloses a named data network transmission method for a smart building. The named data network transmission method comprises the following steps: a transmission mode is judged; after the intermediate node receives the interest packet, if the intermediate node is in a Pull mode, CS, PIT and FIB are inquired in sequence, a forwarding interface is determined, and the interest packet issent to bottom-layer equipment; if the mode is a Push mode, CS and FIB are inquired in sequence, a forwarding interface is determined, and the interest packet is sent to a control center; the provider returns a matched data packet after receiving the interest packet; and after receiving the data packet, the intermediate node queries CS and PIT in sequence to complete a forwarding decision, completes data aggregation according to the name mark, and completes a caching decision by using a caching strategy. According to the invention, the named data network is adopted to carry out data transmission in a smart building scene, so that the transmission requirements of massive devices are met, and the data security is improved; on the basis, the two modes can cover all types of applications, andthe related naming mode, transmission process and caching strategy can effectively improve the data transmission efficiency and reduce the overhead.

The invention belongs to the technical field of data transmission and particularly relates to an avionics target hardware equipment Ethernet data loading method. A data loading module, a FIND processing module, a TFTP protocol module, an ARINC665-3 protocol file processing module, a log module and a state reporting module are used for achieving the avionics target hardware equipment Ethernet data loading method. Compared with the prior art, the avionics target hardware equipment Ethernet data loading method can meet the file transmission requirements of different Ethernet environments of avionics, effective file transmission under the avionics Ethernet environment is achieved, data transmission operation can be controlled according to the specific operation situation of target equipment, flexibility is high, received loading file format and integrity can be checked, and accordingly the safety of needed data is high.

The invention provides a resource selection processing method, device and terminal, and the method comprises the steps: determining N candidate resource groups in a time domain in a resource selectionwindow, and enabling the time domain interval between the adjacent candidate resource groups to be greater than or equal to the maximum round-trip time delay of a hybrid automatic repeat request, wherein N is the transmission frequency of the service packet and is greater than or equal to 1; each candidate resource group corresponds to one-time transmission of the service packet; executing a partof sensing periods of resource sensing in a resource sensing window, and executing channel monitoring on time periods corresponding to the N candidate resource groups; and respectively selecting transmission resources for the service packet in the N candidate resource groups of the resource selection window according to a monitoring result. According to the scheme of the invention, the power consumption of the UE can be reduced on the basis of satisfying the service transmission reliability.

The invention relates to a data frame filling method of multi-modulating modes transmission system, which selects the data processing mode through time domain / frequency domain; when no reference information is inserted into the single carrier wave time domain processing: data requiring single carrier wave time domain processing is under increased sampling; data requiring multi carrier wave frequency domain processing is under processing of interpolation of pilot signal / strongly protected unknown information, afterwards the output data is under processing of interpolation of virtual sub-carrier wave, and finally output under processing of interpolation of virtual sub-carrier wave is under IFFT processing; when reference information is inserted into the single carrier wave time domain processing, and the inserted reference information number L is equal to the inserted pilot signal / strongly protected unknown information number N: data requiring single carrier wave time domain processing is under processing of interpolation of reference information, inserted with reference information formed by L = N signs, and then output data under processing of interpolation of reference information is under increased sampling; data requiring multi carrier wave frequency domain processing is under processing of interpolation of pilot signal / strongly protected unknown information, afterwards the output data is under processing of interpolation of virtual sub-carrier wave, and finally output under processing of interpolation of virtual sub-carrier wave is under IFFT processing.

The invention discloses a high-speed code rate compatible LDPC encoder of a QC-LDPC code based on an FPGA. The method comprises the following steps of sending a column vector of a component of each information sub-block of an input information sequence to a check bit calculation module through a control module; performing time delay on a column vector of a component of the information sub-block through a delay module, and sending the column vector to a selective shift output module; enabling the shift operation module to determine a shift method of the cyclic shift register according to the code rate rate rate of the encoder, and send the shift method to the cyclic shift register; According to a shift method for determining the cyclic shift register, performing shift operation on the firstrow data bi, j (0) of the cyclic sub-matrixes Bi, j, calculating to obtain a check vector according to a result after the shift operation and information bit by bit of an input information bit sequence, and sending the check vector to a selective shift output module; And selecting a shift output module, and outputting the check vector and the column vector of the component of the information sub-block at different times. The high-speed code rate compatible encoder architecture disclosed by the invention can realize resource sharing between different code rates to the greatest extent.

The invention claims a real-time scheduling method for a multimedia sensing network. The real-time scheduling method includes the implementing steps of: stipulating that superframes are short superframes, and dividing a data transmission phase allocated to each station (STA) by an AP in a beacon frame into a point coordination transmission phase (PCTP), a distributed coordination transmission phase (DCTP) and a multimedia data acquisition feedback phase (DAQFP). The STA applies for a transmission demand time length TXOPidemand with the AP in the DAQFP according to the size of acquired data volume. The AP allocates total channel access time length of the PCTP and the DCTP of the superframes according to the overall delay and overall packet loss probability of the current multimedia sensing network. The AP allocates the actual TXOP according to the delay, the size of delay variation and the applied transmission demand time length of each STA. Each STA calculates the arbitration interframe space (AIFS) of the corresponding STA according to the quantity of retransmission packets and retransmission times, and occupies the channel for the channel access time to transmit the retransmission packets in a manner of CSMA / CA. According to the real-time scheduling method for the multimedia sensing network, the low channel utilization is improved, the timeliness of each STA is enhanced, the overall network delay is reduced, and the channel resources are fairly allocated.