61results about How to "Meet the needs of transmission" patented technology

An embodiment of the present application relates to the technical field of wireless communications, in particular to a method, system and device for configuring and reporting measurement information, used to configure the channel information of multiple transmission points and multiple carriers, so that a user equipment (UE) is incapable of reporting the channel information of multiple transmission points and multiple carriers, thus satisfying the requirement for CoMP transmission. The method for configuring measurement information of the embodiment of the present application comprises: a network side determines a measurement information set according to the transmission point on the carrier required to be measured by the UE, the measurement information set comprises the measurement information of at least one transmission point; the network side configures the determined measurement information set for the UE. Because the network side configures the transmission point on the carrier, the UE can report the channel information of multiple carriers and multiple transmission points, thus satisfying the requirement for CoMP transmission.

The invention relates to a method used for digital bus information releasing and group control and a device thereof. The technical measure comprises the following steps: a vehicle terminal system, an electronic station board system and a vehicle technical information management centre are arranged, the electronic station board system is the vehicle technical information management centre are connected into a bi-directional communication network by line link, the vehicle terminal system transmits the vehicle information to the electronic station board system in a wireless communication, the electronic station board system reports the information to the vehicle technical information management centre, the bus coming to station at each station can be found out by inquiring a database, the station arriving time of the bus is calculated according to experimental data including average running speed, average running time between the stations and the like, finally, the arriving time is fed back to the electronic station board system, and the arriving time is displayed to the waiting passengers in a digital way. The method can effectively solve the problems of bus reduction in city and dispatching, information releasing, passenger facilitation, intelligent management control and the like. Therefore, the method realizes intelligent bus dispatching.

The invention discloses a method for adjusting the bandwidth of a multi-protocol label switching traffic engineering (MPLS TE) tunnel. The method comprises the following steps that: a source terminal carries out one-way detection on traffic delay arrived at a destination terminal through the MPLS TE tunnel; and the source terminal adjusts the bandwidth of the MPLS TE tunnel according to the traffic delay. In the method, the timely adjustment of the bandwidth of the MPLS TE tunnel is implemented, and the adjustment of the bandwidth meets the requirement of actual traffic transmission better.

A boardband microwave box-shaped energy transporting window, which belongs to the technical field of microwave device, relates to a microwave energy transporting window in microwave tubes. The microwave energy transporting window is composed of two rectangular waveguide segments (1), a circular waveguide segment (2) and a dielectric window disk (3), wherein the rectangular waveguide segments (1) are respectively connected to both ends of the circular waveguide segment (2); the dielectric window disk (3) is hermetically welded at the middle of the circular waveguide segment (2); and the diameter of the circular waveguide segment (2) is determined according to the cutoff frequency formula of TE11'O'mode to make the cutoff frequency of the TE11'O' mode in the work band range of the box-shaped energy transporting window. The boardband microwave box-shaped energy transporting window can work in the transmission state of the circular waveguide TE11'O'mode and can work in cutoff state, thereby greatly widening the work bandwidth of the box-shaped window. Meanwhile, the size and the volume of the box-shaped window is greatly reduced, and the generation of high-order mode can effectively suppressed.

The invention discloses a bandwidth allocation method of a forwarding and control element separation (ForCES) transmission mapping layer based on a stream control transmission protocol (SCTP). The method includes the steps of (1), initially, queues are established for control information, event information and redirection information respectively, and a scheduling module sets initial scheduling probabilities for the three classes of the queues; (2), a queue management module calculates a packet loss probability caused by the length changes of the queues according to actual buffering conditions of the queues; (3), a rate estimation module calculates an arrival rate of an information flow and a packet loss probability caused by the change of the arrival rate of the information flow; (4), the scheduling module calculates a total packet loss probability according to the two packet loss probabilities, determines whether the information enqueues according to the total packet loss probability and recalculates scheduling probabilities for the three classes of the information queues; and (5), the scheduling module allocates link bandwidths according to the recalculated scheduling probabilities. According to the bandwidth allocation method of the ForCES transmission mapping layer based on the SCTP, dynamic probability scheduling based on rate and buffer control is used for allocating a link bandwidth between a control element and a forwarding element, so that the usage performance of the bandwidth is improved.

The invention discloses a method and a device for sending data packet. The method comprises steps of: when an application layer generates a data packet, determining a time delay requirement when the data packet is sent according to a data packet generation reason; carrying a sending indication when the data packet is sent to an access layer, wherein the sending instruction is determined according to the time delay requirement; determining a sending resource for sending the data packet on the access layer according to the sending instruction and the current resource conditions; and sending the data packet on the sending resource. According to the invention, all kinds of time delay data transmission requirements can be met, so various time delay data packets can be transmitted to an opposite end according to corresponding time delay requirements. The invention also provides a low-time delay resource distribution scheme when the time delay requirement of sending of the data packet is determined. Furthermore, the invention also provides a scheme ensuring sending reliability of the data packet.

The invention discloses a data transmission method, device and system. The device is integrated on an FPGA. The apparatus comprises: an apparatus body; the system comprises a protocol stack logic control unit, a transmit-receive control logic unit, a data interaction control unit and an over-ten-gigabit optical transmit-receive unit used for receiving/sending data. The protocol stack logic controlunit is used for acquiring to-be-sent data, encoding the to-be-sent data according to a TCP/IP protocol, sending the encoded to-be-sent data through the over-ten-gigabit optical transceiver unit, decoding the to-be-received data received through the over-ten-gigabit optical transceiver unit according to the TCP/IP protocol, and sending the decoded to-be-received data to the transceiver control logic unit; transceiving control logic unit, the verification module is used for receiving the to-be-sent data information from the CPU and carrying out validity verification on the to-be-sent data information; and when the data is legal, sending the to-be-sent data information to the protocol stack logic control unit, and storing the decoded to-be-received data to an external memory according to verification of the legality of the decoded to-be-received data from the protocol stack logic control unit.

The invention discloses a method and system for realizing high-security fast frequency-hopping transmission. According to the method, during the transmission of data, a transmitting terminal carries out bit, modulation mode and power distribution on subcarrier clusters of data to be transmitted according to carrier frequency-hopping information specified by a current time slot, then, all subcarrier data are transmitted to a receiving terminal through digital-to-analog (D/A) conversion after all of the subcarrier data are mapped to a time domain by using an IFFT (Inverse Fast Fourier Transform) method, and the processing process of the receiving terminal is an inverse process of the transmitting terminal. The system disclosed by the invention comprises a carrier frequency-hopping information generation device, a subcarrier data dynamic allocation device, a subcarrier data dynamic demodulation device, an IFFT module, an FFT (Fast Fourier Transform) module, a D/A converter, an analog-to-digital (A/D) converter, a transmitting module and a receiving module. The frequency-hopping system disclosed by the invention has the advantages that a frequency hopping rate much higher than that of the conventional single-carrier frequency-hopping communication system can be generated, the concealment performance of frequency-hopping signals is high, the anti-interception capacity is strong, and the availability of a communication system is high. Meanwhile, according to the method and the system for realizing the high-security fast frequency-hopping transmission, the utilization rate of a wireless spectrum is increased because a plurality of subcarriers are used for simultaneous transmission.

The invention provides a wireless video safety access system based on SSL VPN. The system comprises a streaming media service terminal arranged in an external network, a video access authentication service terminal, an internal and external network safety isolation network brake, a video user authentication service terminal, a plurality of video clients arranged in an internal network and a SSL VPN gateway, wherein the video access authentication service terminal, the internal and external network safety isolation network brake and the video user authentication service terminal are successively connected; the video clients are used for sending a connection request to the streaming media service terminal, and sending a video transmission signaling to the streaming media service terminal after connection is established; the SSL VPN gateway is used for making the video user authentication service terminal and a streaming media establish connection according to the request; and after the connection is established, a video transmission link is established, and video data is output to the video user authentication service terminal so that the video clients can acquire the video data from the video user authentication service terminal. The system has advantages that safety and reliability of video interaction are guaranteed; the video transmission signaling and the video data are separated; and a high performance requirement of data transmission can be satisfied.

The invention provides a method for transmitting hybrid automatic retransmission request-acknowledgment (HARQ-ACK) information. The method is used for the circumstance that multiple Cells in CA are different in uplink and downlink configuration. The method includes that each Cell, in the CA, determined to be used for transmitting HARQ-ACK information is configured with at least one HARQ-ACK transmission mode of the Cell on a PUCCH (physical uplink control channel), PUCCH resources used for HARQ-ACK information transmission are notified to UE (user equipment) through a transmission power control (TPC) domain in a physical downlink control channel (PDCCH) to enable the UE to determine the PUCCH resources used and the transmission mode based for the HARQ-ACK transmission, and even terminals positioned at edges of the Cells can normally send HARQ-ACK information. Consequently, the circumstance that the multiple carrier-aggregated Cells are different in uplink and downlink configuration is effectively supported.

The invention discloses a communication method and device. The method comprises the steps that first communication equipment determines the requirement for transmitting second information and then transmits scheduling information of the second information in a physical resource set of transmitting first information; the first communication equipment transmits the second information on the transmission physical resource of the second information; the first information is continuously transmitted in the physical resource set of transmitting the first information, or the first information is transmitted in the physical resource set of transmitting the first information when the scheduling information and/or the second information is not transmitted; second communication equipment continuously detects the first information in a first physical resource set and the scheduling information of the second information; the transmission physical resource of the second information is determined according to the scheduling information after the scheduling information of the second information is detected; and the second communication equipment detects the second information on the physical resource and/or does not transmit the information on the physical resource. With application of the technical scheme, different application requirements of vehicle communication can be met.

The invention relates to an air conditioner multi-split method based on a power line carrier communication network. The multi-split method comprises the following steps that a host computer transmits a synchronous data frame to make all subordinate computers enter the communication mode; the host computer transmits equipment control data to all the subordinate computers to conduct control; the host computer conducts state data communication with all the subordinate computers within the preset communication time value; the host computer stops communication with all the subordinate computers; and the host computer judges whether a bus is available or not, and if yes, the mentioned steps are implemented in sequence once again. By means of the air conditioner multi-split method, the communication requirement of a multi-split air conditioning unit can be met.

The invention discloses a low-complexity super-Nyquist detection method based on continuous symbols, which mainly solves the problem that the complexity of the receiver detection method in the existing super-Nyquist transmission system is too high. The realization scheme is as follows: 1. The transmitter generates the transmitting signal; 2, noise is added to the transmitted signal to obtain a received signal; 3, match filtering and downsampling are performed on the received signal; 4, super-Nyquist detection is performed on the downsampled symbol sequence, namely, the symbol interferencebefore and after the current symbol is cancelledto obtain the symbol estimated value sequence after canceling the symbol interference; 5. the sequence of symbol estimates is de-mapped into a binary bit sequence. On the basis of guaranteeing the bit error rate performance, the invention greatly reduces the computational complexity, and is suitable for the detection of the super-Nyquist receiver in the large-capacity satellite communication system.

The present invention discloses a modulator-based high-speed retro-modulation reflection module and a reflection transmission method. The modulator-based high-speed retro-modulation reflection modulecomprises an optical antenna, a space-to-fiber coupling apparatus, an optical circulator, a polarization controller, a signal source, and an electro-optic modulator. An optical carrier that is received by the optical antenna from free space is coupled by the space-to-fiber coupling apparatus, and is transmitted to the electro-optic modulator; an electric signal that is sent by the signal source ismodulated, by the electro-optic modulator, to the optical carrier that comes from the space-to-fiber coupling apparatus, to generate an optical signal; the optical signal is reflected back to the space-to-fiber coupling apparatus by the optical circulator, then is coupled back to the free space by the space-to-fiber coupling apparatus, and is retro-reflected by the optical antenna in a reverse direction, so as to implement high-speed long-distance free space communication. The modulator-based high-speed retro-modulation reflection module and the reflection transmission method are used for a high-speed retro-modulation reflection-type free space laser communication system, reduce a volume and power consumption of a retro-modulation terminal device, also significantly improve a transmissionrate of an uplink signal, and meet requirements of next-generation high-speed large-capacity long-distance free space optical signal transmission.

The invention discloses an RSOA-based high-speed amplified reverse modulation reflective module and an implementation method. The RSOA-based high-speed amplified reverse modulation reflective module comprises an optical antenna, a space-fiber coupling device, a signal source, and a reflective semiconductor optical amplifier. A light carrier received by the optical antenna from free space passes through the space-fiber coupling device and then is coupled into the reflective semiconductor optical amplifier; the reflective semiconductor optical amplifier modulates an electric signal sent out by the signal source to an optical signal from the space-fiber coupling device; the signal is amplified and then the amplified signal is reflected to the space-fiber coupling device; the processed signal is coupled to the free space through the space-fiber coupling device; and the signal is returned reversely through the optical antenna, so that high-speed long-distance free space communication can be realized. The RSOA-based high-speed amplified reverse modulation reflective module and implementation method can be applied to a high-speed amplified reverse modulation reflective type free space laser communication system, so that the volume and power consumption of the reverse modulation terminal equipment can be reduced; and the transmission rate of the uplink signal can be improved and the power of the uplink signal can be amplified, so that the need of the next-generation high-speed large-capacity long-distance free-space optical signal transmission can be satisfied.

The invention provides a remote ammeter system. The remote ammeter system comprises a monitoring center, a concentrator, a collector and a user ammeter. According to the invention, communication is divided into a two-layer structure, the concentrator is communicated to a bottom layer of the collector, and the monitoring center is communicated to an upper layer of the concentrator. The system has the advantages that because a GPRS wireless public network platform is employed, the system can be used when the system is arranged, special wiring is not required for remote meter reading, and the remote ammeter system has the advantages of less investment at an early stage, fast effectiveness, and low upgrading and maintenance cost at anaphase.

The invention discloses a crankshaft transmission mechanism of multiple eccentric disc sets. The crankshaft transmission mechanism comprises a crankshaft support, a shaft and the eccentric disc sets. The crankshaft transmission mechanism is characterized in that the multiple eccentric disc sets are arranged on the shaft, each eccentric disc set comprises an eccentric disc fixing seat, a bearing, an eccentric disc outer ring, an eccentric disc and a sealing device, wherein the eccentric disc is arranged in the eccentric disc outer ring through the bearing, the eccentric disc outer ring is fixed to the eccentric disc fixing seat through a pin shaft, and the eccentric disc and the eccentric disc outer ring are sealed through a sealing device; and labyrinth seal is adopted in the sealing device. According to the crankshaft transmission mechanism, the eccentric disc sets serve as a whole module to be installed on the shaft through an expansion sleeve; in the installation and maintaining process, the crankshaft transmission mechanism is more convenient and flexible; and the number of the eccentric disc sets can be symmetrically increased and decreased in paired according to needs, and therefore the requirement of crankshaft transmission in different bounce sorting machines is met, and the using and maintaining cost is reduced.

The invention discloses a product automatic film wrapping and box filling machine and a work manner thereof. The product automatic film wrapping and box filling machine structurally comprises a base,a rotating arm, a motor roller transmission device, a film guiding support, a supporting plate, a shell, a hydraulic telescopic device, a gravity roller transmission device, a film pressing and film cutting device, a film guiding transmission mechanism, a transmission mechanism support, a fixed wall, base supporting feet, a paper carton transmission device, a motor roller transmission device, a base plate and a rotating table. According to the product automatic film wrapping and box filling machine and the work manner thereof, a film wrapping machine and a box filling machine are combined, operation from film wrapping to box filling of a product is completed at a time, the product automatic film wrapping and box filling machine is stable in structure, and reasonable in design, a manual boxfilling step is omitted, the film wrapping and box filling efficiency is improved, meanwhile, it is avoided that due to manual box filling, a human error occurs, and product damage is caused, and theproduct qualification rate is increased; and a buffering spring is added between an alarm clamping plate and a buffering rubber pad, it is avoided that product damage is caused by rigid collision between an arm and the product and the performance of the product is affected, and meanwhile, it is avoided that in the grabbing process of the arm, plastic deformation of the product is caused, and product damage is caused.

The invention discloses a long-distance, heavy-load and parallel-axis type precision 2:1 transmission mechanism. The mechanism mainly comprises an input shaft, an output shaft, a flexible transmission part, a pre-tensioning pressing block, an end part fixing block, etc., wherein the input shaft is parallel to the output shaft and is connected with the output shaft through a flexible transmission part; two ends of the flexible transmission part are fixed to the output shaft; an intermediate part of the flexible transmission part is fixed to the input shaft; the input shaft in rotating can drive the flexible transmission part, and the flexible transmission part can synchronously pull the output shaft to rotate; as the input shaft and the output shaft of the whole mechanism are correspondingly connected with a driving end and a load end of an limited cornering device, the parallel 2-1 transmission of the driving end and the load under the long-distance and heavy-load condition can be achieved. The mechanism has the characteristics of being high in transmission accuracy, high in transmission rigidity, simple in structure, convenient to dismount and mount, low in processing cost, and easy to construct; the problem that the long-distance, heavy-load and parallel-axis type precision 2:1 transmission is hard to achieve by a traditional transmission mode can be solved.

The invention discloses an electric connector. The electric connector comprises an insulating body and a terminal accommodated in the insulating body, wherein a first terminal groove for accommodating a terminal and a second terminal groove for accommodating a terminal are arranged on the insulating body alternately; the terminals are provided with a body part respectively; and each body part is provided with an entity part and an opening. The opening positioned in the first terminal groove is deviated to a first direction relative to the body part; and the opening positioned in the second terminal groove is deviated to a second direction opposite to the first direction relative to the body part. Capacitance is reduced by reducing the facing area, which can cause capacitance effect, between the first terminal and the second terminal, so that the characteristic impedance between the terminals is increased and a high-frequency electrical signal can be stably transmitted.