588results about How to "Improve transmission efficiency" patented technology

A method and apparatus for transmitting/receiving broadcasting-communication data is provided. The apparatus includes: an original signal generator configured to receive the original data and generate baseband original signals; a first modulator configured to receive the baseband additional signals and generate original signals of a predetermined band; an additional signal generator configured to receive the additional data and generate baseband additional signals; a second modulator configured to receive the baseband additional signals and generate additional signals of a predetermined band; an average power controller configured to control an average power of the additional signals of the predetermined band; an inserter configured to insert the additional signals of the predetermined band with a controlled average power to the original signals of the predetermined band to thereby generate mixed signals of a predetermined band; and a transmitter configured to transmit the mixed signals of the predetermined band.

A disclosed transmission apparatus includes a multiplexing portion that multiplexes a common pilot channel, a shared control channel, and a shared data channel; a symbol generation portion that performs an inverse Fourier transformation on the multiplexed signal so as to generate a symbol; and a transmission portion that transmits the generated symbol. The multiplexing portion multiplexes the shared control channel including control information necessary for demodulation of the shared data channel including a payload and the common pilot channel to be used by plural users in a frequency direction, and the shared data channel in a time direction with respect to the common pilot channel and the shared control channel. Even when the number of symbols composing a transmission time interval (TTI) is reduced, transmission efficiency of channels excluding the common pilot channel can be maintained by reducing insertion intervals of the common pilot channel accordingly.

The invention relates to a data packet transmitting method and a device of virtual machine network, wherein the method comprises analyzing and obtaining source host machine IP address and source virtual machine MAC address and storing to a data base when a physical network card is monitored to be provided with a data packet which is to be transmitted to a local virtual network card, analyzing and obtaining a destination virtual machine MAC address when the virtual network card is detected to be provided with the data packet which is to be transmitted to network, judging whether the destination virtual machine MAC address is broadcasting MAC address or not, if the destination virtual machine MAC address is broadcasting MAC address, calculating and obtaining a multicast IP address as a destination host machine IP address, if not, inquiring in the data base and obtaining IP address as destination host machine IP address, if the address can not be found, then, calculating the multicast IP address as the destination host machine IP address, and setting the destination host machine IP address into the data packet. The device comprises a module for executing the method. The invention adopts a unicast and multicast combined mode to transmit data in virtual machine network, lowers bandwidth load, and improves the transmission efficiency of the data packet.

A solid-state imaging device including a semiconductor substrate, a photoelectric conversion portion interposed between a lower electrode and an upper electrode, a contact plug formed so as to connect the lower electrode and the semiconductor substrate in order to read signal charges generated in the photoelectric conversion portion to the semiconductor substrate side, a vertical type transmitting path configured by sequentially laminating a connection portion for electrically connecting the contact plug to the semiconductor substrate, a charge accumulation layer for accumulating the signal charges read to the connection portion, and a potential barrier layer configuring a potential barrier between the connection portion and the charge accumulation layer in a vertical direction of the semiconductor substrate, and a charge reading portion configured to read the signal charges accumulated in the charge accumulation layer to the circuit forming surface side of the semiconductor substrate.

The invention provides a power grid CIM (Common Information Model)-based method for accessing real-time data state estimated result of an EMS (Energy Management System) into an interface of a full-digital real-time simulation system. The method comprises the steps of: outputting a power grid model of the EMS and a telemetry information-equipment relation table into a format data file according to a CIM derivation standard, reading the CIM file in by a full-digital real-time simulation system of a power system through a data interface to form a computation database, and directly transmitting the power system simulation data based on the database back to the EMS for detection. The power grid CIM-based method has the advantages of multi-system joint debugging, high data precision and fast transmission speed, provides reliable data basis and unified network model for online safety analysis and prewarning control of a large power grid for the first time, and breaks through the bottleneck that calculation results cannot be compared because the offline calculation and a calculation module are inconsistent; and tests prove that a measurement model which is used for the full-digital real-time simulation system of the power system and constructed on the basis of the CIM derivation standard of the EMS is correct and consistent.

The present invention provides a signal processing method performed by a hybrid wireless power transmitting apparatus which is configured to transmit wireless power signals based on magnetic resonance and magnetic induction, the method comprising transmitting a first object detection signal via an inductive power transmitting unit and a second object detection signal via a magnetic resonant power transmitting unit alternatively; operating one of the inductive power transmitting unit and the magnetic resonant power transmitting unit which is selected based on an inductive response signal and a resonant response signal corresponding to the first object detection signal and the second object detection signal respectively; and transmitting wireless power signal via the selected power transmitting unit; and a hybrid wireless power transmitting apparatus using the method.

The invention provides a configuration method of a cyclic prefix (CP), a base station and a terminal, wherein the method comprises the steps of respectively configuring the CP length of each subframe by the base station, dispatching the terminal in need of the first CP length at the subframe which is configured with the first CP length and dispatching the terminal in need of the second CP length at the subframe which is configured with the second CP length according to the transmission requirement of the terminal. The invention provides a method for flexibly configuring the CP length, not allthe uplink or downlink subframes are necessarily configured to extended CP by using the method for the terminal which supports the multipoint cooperation or relay transmission, however the subframe is respectively configured, part of the subframes are configured to extended CP, the terminal which supports the multipoint cooperation or relay transmission is dispatched on the subframe which is configured with the extended CP, and the terminal is dispatched on the subframe which is configured with the conventional CP by using the common transmission mode, thereby improving the transmission efficiency of the system and saving the resources of the system.

The invention discloses a multi-stage magnetic field arc ion plating method for a lining positive bias straight pipe, and belongs to the technical field of material surface treatment. The problems that in a multi-stage magnetic field filtering device, pollution to the inner wall of a pipeline due to macroparticles needs to be removed, and losses are caused in the plasma transmitting process need to be solved. The method comprises the steps that firstly, a workpiece to be coated is arranged on a sample table in a vacuum chamber, and a related power source is powered on; and secondly, film deposition is conducted, when the vacuum degree in the vacuum chamber is smaller than 10-4Pa, work gas is guided in, the air pressure is adjusted, a coating power source is started, meanwhile, energy of plasmas is adjusted through a grid bias power supply, the macroparticle defect is further eliminated through a lining positive bias straight pipe device, the transmission efficiency of the arc plasmas is guaranteed through the lining positive bias straight pipe device, needed technology parameters are set, and film deposition is conducted.

The invention discloses a P2P stream media live-broadcast low-delay transmission method comprising the following steps of: collecting multimedia frames in a multimedia data stream and coding the multimedia frames by multimedia; slicing the coded multimedia frames into multimedia data packets of about 1KB and numbering each sliced multimedia data packet; transmitting the multimedia data packets to each broadcasting node through a live-broadcast network; and receiving the multimedia data packets by the broadcasting nodes, combining the multimedia frame data packets into the multimedia frames and playing the multimedia frames. The invention also discloses a P2P stream media live-broadcast low-delay transmission system comprising a multimedia frame collecting module, a multimedia frame slicing module, a multimedia frame data packet transmission module, a multimedia frame recombination module, and the like. The invention improves transmission efficiency, reduces transmission delay and bandwidth waste and increases data transmission stability.

In a method for allocating transmission power in a communication system including multiple antennas, a plurality of subcarriers are grouped by a plurality of groups, and each group includes at least one subcarrier. A transmission power weight and an antenna transmission vector are calculated for each group by using channel information, a transmission power for each group of each antenna is calculated by using the transmission power weight and the antenna transmission vector for each group, and transmission signals are transmitted through the multiple antennas after determining which signals need to be transmitted from the multiple antennas by using the transmission power.

An electronic substrate includes: a base substrate having an active face and a rear face; inductor elements formed on or above the active face, and formed on or above the rear face; and a conductive member electrically connected to the inductor element formed on or above the rear face, penetrating through the base substrate from the active face to the rear face.

The present disclosure relates to a communication method and system for converging a 5^th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention provides a method and device for vehicle to everything (V2X) communications. The method comprises: receiving configuration signaling transmitted by an eNB, and then determining, according to the configuration signaling, at least one of a search space corresponding to S-DCI_C, a transmission carrier of S-DCI_C, and the number of bits corresponding to S-DCI_C; or determining, according to the configuration signaling, at least one optional time position information for transmitting a Side Link Synchronization Signal (SLSS) and a Physical Sidelink Broadcast CHannel (PSBCH), and then, based on coverage state about whether a first UE is within cellular network coverage, according to the type of a reference synchronization source, determining time position information from the at least one optional time position information for transmitting the SLSS and the PSBCH, identity information of the SLSS to be transmitted, and the value of the inCoverage field in the PSBCH to be transmitted. The present application also provides a transmitting and receiving method in V2X communication, comprising the steps of: detecting, by a first-type UE, a PSCCH in format of SCI X transmitted by other UEs, and determining, according to the SCI X, whether to further measure PSSCH-RSRP of a PSSCH scheduled by the SCI X and whether to further decode the PSSCH scheduled by the SCI X. The method provided by the present application further comprises the steps of: detecting, by a second-type UE, a PSCCH in format of SCI X transmitted by other UEs, and determining, according to a modulation and coding bit field in the SCI X and a predefined TBS mapping rule, a TBS of a PSSCH scheduled by the SCI X. The method provided by the present application further comprises the step of: determining, by the second-type UE and according to a modulation scheme, the transmitting power of the PSCCH of the SCI X and the transmitting power of the PSSCH scheduled by the SCI X. By the above method, the coexistence of a first-type V2X UE and a second-type V2X UE can be better realized, and the transmission efficiency of the second-type V2X UE can be improved.

The invention provides wireless laser charging equipment for an unmanned aerial vehicle and a charging system of the wireless laser charging equipment. The charging equipment comprises a wireless laser emitter base station and a solar energy receiver, wherein the wireless laser emitter base station comprises a base, a display screen, a press key, a battery groove cover plate, a rotating motor, a support plate, a support frame, a lateral motor, a movable plate, a laser emitter, positioning equipment, posture measuring equipment, a light beam regulator, a light beam regulator support frame and an observation and aiming device, wherein the solar receiver comprises a solar panel and a fixing frame, and the solar panel is fixedly arranged at the bottom of the unmanned aerial vehicle through a fixing element. The charging system for the wireless laser charging equipment of the unmanned aerial vehicle comprises a laser emitting base station and an unmanned aerial vehicle system, wherein the laser emitting base station and the unmanned aerial vehicle system realize the mutual control through a wireless network. The wireless laser charging equipment and the charging system have the advantages that the unmanned aerial vehicle is charged through laser, the problem of a short endurance time of the unmanned aerial vehicle can be effectively solved, when the wireless laser charging system is used, the unmanned aerial vehicle does not need to land, and only the cruising flight in the effective work range of the laser emitter base station is needed.

The invention provides a data parallel-downloading method, a data parallel-downloading apparatus and a network device. The method comprises the following steps: analyzing files to be downloaded in a file server, and acquiring user information of an accessing user with an access authority to the files to be downloaded; dynamically regulating the required links for downloading the files to be downloaded according to the running state of the device, the current bandwidth occupation condition and the user information of the accessing user; and downloading the files to be downloaded to a local device through the regulated parallel links. The invention further provides the data parallel-downloading apparatus and the network device. According to the data parallel-downloading method, the data parallel-downloading apparatus and the network device, the number of the parallel links can be dynamically regulated, and the file transmission efficiency is improved under a premise that the bandwidth is not excessively occupied.

The invention discloses a variable-coupling coefficient magnetic resonance wireless power transmission system and a method in the technical field of magnetic coupling resonance wireless power transmission, and mainly solves the problem that the transmission efficiency of the magnetic resonance wireless power transmission system can sharply decrease as the transmission distance increases. By simultaneously adjusting the distance between a source coil and a transmitting coil and the distance between a receiving coil and a load coil, the method ensures that the magnetic resonance wireless power transmission system can meet a critical coupling condition equation and work in a critical coupling state. The invention accurately obtains conditions which need to be met by the critical coupling state of the system, so that the magnetic resonance wireless power transmission system can always work in a high-efficiency mode.

The invention relates to a transmission method and a device of control messages. The method includes the steps as follows: UE (user equipment) in one cell is grouped, and a second control message of each grouped UE group is obtained; the second control message of each UE group is subjected to combined channel coding; a first control message is obtained and transmitted to the UE in the cell, wherein the first control message comprises an indicating message of the second control message of each UE group after the combined channel coding of the second control message, and the second control message is obtained according to the indicating message; and the second control message of each UE group after the combined channel coding of the second control message is transmitted to the UE in the cell. The method groups the UE in the cell, and the UE-level control message in each group is subjected to combined coding and transmission, so that the transmission efficiency of the control message can be obviously improved, the system capacity of a network is enlarged, and the problem that the capacity of a control channel is limited is solved.

The invention provides a multicarrier underwater acoustic communication method. The method comprises the following steps of: firstly modulating a base band subcarrier by utilizing a scattering inverse fractional order Fourier transform at a receiving terminal, wherein the plus-minus frequency subcarriers occurring in pair named as inter-modulation, secondly performing quadrature modulation on a real part and a virtual part of a base band signal so as to modulate a base band compound signal to be high frequency transmission, performing quadrature demodulation, rebuilding the base band compound signal, balancing anti-multipath diversity reception in time domain by using a Rake receiver, and balancing the decision feedback of the received signal in a fractional order Fourier transform domain. The frequency band of the invention is doubled, the transmission efficiency is high and the multipath diversity reception is resisted.

The present invention is provided to perform uplink scheduling of a mobile station. In order to perform the uplink scheduling of the mobile station located in a service cell, a base station receives a plurality of interference amounts each corresponding to a plurality of frequency bands associated with an uplink in at least one adjacent cell corresponding to the mobile station from the base station of at least one adjacent cell, respectively, and calculates a plurality of interference values each corresponding to the plurality of frequency bands by using the plurality of interference amounts each corresponding to at least one adjacent cell. In addition, the base station generates scheduling control information corresponding to the mobile station by using the plurality of interference values and transmits the scheduling control information to the mobile station.

The invention discloses a network transmission method for a large extensible markup language (XML) document. The method comprises the following steps of: 1, reading the XML document; 2, preprocessing all node tags in the XML document; 3, processing redundant tags in the XML document; and 4, finishing the compression processing and fragmentation transmission of the XML document. The step 4 further comprises the following steps of: 41, setting an initial fragmentation size to be Initial_Size; 42, extracting a plurality of pieces of data to form a data packet for the compression processing and the network transmission, wherein the size of the data packet is Initial_Size; 43, judging a current network load condition, and obtaining a value of a maximum transmission unit; 44, re-determining a fragmentation size to be New-Size according to the current network load condition and the value of the maximum transmission unit; 45, re-extracting a data packet with the size of New-Size for the compression processing and the network transmission; and 46, repeating the steps 43 to 45.

The invention discloses a wireless power ultrasonic diagnostic apparatus, comprising a wireless transmitting unit, a wireless receiving unit and ultrasonic diagnostic equipment, wherein the wireless receiving unit is arranged in the ultrasonic diagnostic apparatus, and no wire is connected between the wireless transmitting unit and the ultrasonic diagnostic apparatus; the wireless transmitting unit comprises a transmitter device for converting drive current into electromagnetic wave to transmit, and the wireless receiving unit comprises a receiver device for receiving electromagnetic wave and converting the electromagnetic wave into induced alternating current via induction coils; and the transmitter device operates under a quasi-resonant state, the resonant frequency of the receiver device and the resonant frequency of the transmitter are the same, and the receiver device and the transmitter device operate under a resonace state. The invention provides a novel power supply mode for the traditional ultrasonic diagnostic apparatus to enable the traditional ultrasonic diagnostic apparatus to have wireless power supply and wireless charging functions, avoid constraint of numerous and complicated cables, and lead the movement and application of the apparatus to be more flexible, convenient and rapid.

A two-way communication circuit is connected to one end of a cable performing half-duplex communication. The two-way communication circuit includes a controller register storing a control signal including switch indication information switching a transmission direction and a reception direction; a communication controller managing timing depending on the control signal stored in the controller register; and a transmission and reception circuit periodically switching the transmission direction and the reception direction according to an indication by the communication controller depending on the control signal.

A method of controlling data transfer, a method of controlling content transfer, a method of obtaining content processing information, and a system for transferring content are provided. The method of controlling data transfer in a data interoperable environment includes: receiving a request for transmitting data from a client; gathering information on entities which are to participate in transmitting data; forming a chain including at least two entities by using the gathered information on the entities; transmitting a plurality of data through the chain; and receiving an event message for representing a transmission status of the data transmitted from at least one of the entities included in the chain. Accordingly, it is possible to control a transmission of the data so that the plurality of data can be transmitted through a single session and to receive the transmission status of the data as an event message.

The invention discloses an overlapping multiplex transmission method, a base station and a user terminal. The method comprises the following steps: the quality of an up link and/or a down link between the base station and the user terminal is acquired; a combination or an iteration combination of L and K of the up link and/or the down link meeting the requirement of service data transmission quality can be selected from predetermined more than one combinations or iterations of overlapping encoding constraint lengths L and overlapping frequencies K of overlapping complex codes for the user terminal according to link quality; service data interacted between the base station and the user terminal is transmitted after the service data is subject to overlapping complex coding by the selected combination or iteration combination of the L and the K. With the invention, the reliability of data transmission can effectively ensured, and the efficiency of system transmission can further improved.

Provided is a terminal apparatus that communicates with a base station apparatus, including: a control unit that determines a transmit power that is available for application in a first Cell Group (CG), by performing comparison with a first upper limit value and based on the smaller of the transmit power and the first upper limit value, in a case where transmission in a subframe i₁ in the first CG overlaps transmission in subframes i₂−1 and i₂ in a second CG, in which the first upper limit value includes a maximum output power among at least subframes that overlap.

The invention discloses preparation for p-n junction hollow sphere TiO-CdS nanophase compound material and application in photocatalytic hydrogen production by water decomposition; the method uses inexpensive cadmium source and nickel source, adopts a hydrothermal method, a synthesis method, and a four-step impregnation method for compounding an n-NiO semiconductor and a p-CdS semidconductor to prepare the p-n junction hollow sphere TiO-CdS nanophase compound material; and the technical process is simple and practicable and can realize scale production. The p-n junction hollow sphere TiO-CdS nanophase compound material is used as photocatalyst for solar energy visible light catalyzing hydrogen production by water decomposition, speeds up the conveying rate of photo-generated electrons and substantially increases yield of the hydrogen production.

The invention relates to the technical field of computer architectures, in particular to a content-centric network bottom implementation method, a content-centric network and a communication method realized based on the content-centric network. The content-centric network bottom implementation method comprises the steps that network nodes are connected through a network card and a data path, and the IP address setting of the network card is closed; the operating mode of the network card is set to be a promiscuous mode; the length value of the maximum transmission unit of the network card is set so that an intact content data package can be accommodated; a bottom interface face, based on an original socket, of the network nodes is established; a physical interface of the network nodes and the bottom interface face are bound, and the network card and a specific transmitting interface are bound; content data are named and stored on a content originating node, and the content originating mode broadcasts the prefixes of the names of the content data through an external network card.

The invention relates to wall hanging plate processing auxiliary equipment, in particular to a material conveying device, which is provided with a support frame, wherein the two sides of the top of the support frame are respectively provided with U-shaped support plates, a plurality of bearing seats are arranged on the support plates, rolling shafts are arranged among the bearing seats arranged on the two support plates, the same side of the rolling shafts is provided with transmission gears, the adjacent transmission gears are connected through a chain, the transmission gears arranged at the end parts of the material conveying device is connected with a motor through a chain, and the motor is arranged under the rolling shafts and is arranged in a motor fixing frame. The material conveying device has the advantages that the structural design is reasonable, the transmission efficiency is high, and the conveying requirements of wall hanging plates in various dimensions can be met.

The embodiment of the invention discloses an external communication method, device and system for a 6LoWPAN (internet protocol 6 over low power wireless personal area network) intra-network device and the outside. The method comprises: receiving a data packet sent by the intra-network device, wherein the header of the data packet carries a source address, a destination address and an external forwarding mark, the source address of a link layer header and the source address of an adaptation layer header are addresses of the intra-network device, and the destination address of the link layer header and the destination address of the adaptation layer header are addresses of a gateway device; acquiring the home address of the corresponding external network device; rewriting the destination address of the adaptation layer header of the data packet as the home address of the external network device, and packaging again; and transmitting the data packet after being packaged again to the external network device. The invention is suitable for compressing the header for the data packet when the intra-network device and external network device of the 6LoWPAN network communicate with each other.

The invention provides an IP data packet encapsulating method and a method for compressing a packet head of an IP data packet. The IP data packet encapsulating method includes the first step of setting the data type as the IP data packet and setting the working mode of baseband frames in frame headers of the baseband frames, the second step of populating the IP data packet to be sent from the first byte of a data field of the current baseband frame, wherein the first byte is determined according to the length of the remaining IP data packet of the last baseband frame, and the third step of filling part of data in the IP data packet in the free space to completing encapsulating the current baseband frame if the free space of the current baseband frame is not enough to load one whole IP data packet. Through the IP data packet encapsulating method, the channel utilization rate and transmission efficiency of the IP data packet are improved.

The invention discloses a vacuum absorption conveying belt. An existing conveying belt does not have a vacuum absorption function. An existing absorption platform cannot achieve continuous conveying. According to the technical scheme, a plurality of vacuum absorption units are movably connected to form the conveying belt, the absorption planes of the vacuum absorption units are combined to form a vacuum absorption conveying object-carrying face, so that the vacuum absorption units have a continuous conveying function; or a penetrating air absorption hole is formed in the conveying belt, then a plurality of vacuum back shells are arranged on the back face of the hole, and the conveying belt has a vacuum absorption function. A limiting device, a transmission auxiliary device and a vacuum system are arranged, and accordingly vacuum absorption and continuous conveying are achieved at the same time.