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188results about How to "Meet transfer requirements" patented technology
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Robot based on Wi-Fi
InactiveCN101293349AFast transmissionMeet transfer requirementsProgramme-controlled manipulatorLighting elementsARM9Video image
A robot based on Wi-Fi includes a robot body which is a crawling car formed by a carriage (14) and a crawling running mechanism (13); wherein, a mechanical hand (6) is arranged on the carriage (14); the mechanical hand (6) is connected and fixed in the middle at the front part on the top surface of the carriage (14); the robot also includes a robot control system; the system takes an ARM9 series embedded microprocessor as a core and the periphery of the system is respectively provided with an electric compass, a GPS module, a CCD vidicon, a sensor group, a Wi-Fi module, a robot body controller and a mechanical hand controller. One surface of the Wi-Fi module receives external control command and the other surface encrypts the video image captured by the CCD vidicon in the sensor group and transmits to the outside; the microprocessor can automatically control a robot body controller and a mechanical hand controller to finish the tasks of patrolling, fault removing, rescuing and alarming; the microprocessor can also remotely control the robot body controller and the mechanical hand controller to finish the tasks of patrolling, fault removing, rescuing and alarming.
Owner:GUANGZHOU UNIVERSITY
Scheduling method for ensuring service quality of real time operation in OFDM
InactiveCN1463099AMeet transfer requirementsImprove service capabilitiesRadio/inductive link selection arrangementsFrequency-modulated carrier systemsSignal-to-noise ratio (imaging)Carrier signal
The invention includes two steps. In preparing step, the dispatching cycle is fixed. One time of dispatch is carried out for minimal unit of one dispatching resource of sub band composed of the several adjacent sub carrier waves of multiple service queues within a time slot. The method of closed loop feedback is utilized in the system. Based on average S / N ratio of each sub band, the mobile station feeds back the word of data rate control (DRC) obtained by looking up the table. In dispatching step, the method dispatches services considering channel conditions and the requirement of service time delay comprehensively according to the service priority from high to low in turn. In determining the interval of dispatching target value, the limitation of maximum number of sub band is consideredby using priorities, and the dispatch is carried out based on sub bands with largest DRC. The invention features the good efficiency, delay performance and fairness.
Owner:TSINGHUA UNIV
Rapid intelligent public transport stereo monitoring apparatus and working method thereof
InactiveCN101465055AImplement schedulingImprove intelligenceDetection of traffic movementThe InternetMonitoring and control
The invention relates to a rapid and intelligent public transportation three-dimensional monitoring and controlling device and an operating method thereof, which belongs to the technical field of public transportation. The device comprises a monitoring and controlling dispatching center, a vehicle mobile monitoring and controlling terminal and a platform fixed monitoring and controlling terminal, wherein, the vehicle mobile monitoring and controlling terminal and the platform fixed monitoring and controlling terminal are connected with the monitoring and controlling dispatching center through an Internet and a WiMAX network. The method comprises the following steps: the vehicle mobile monitoring and controlling terminal and the platform fixed monitoring and controlling terminal are set, the video information inside the bus, the video information for the platform environment and the passengers on the platform as well as the relevant GPS information are gathered in a real-time manner and transmitted based on the WiMAX network, and the vehicle mobile monitoring and controlling terminal performs the interactive function of intelligent bus stop announcement and scheduling information at the same time. By using the realized three-dimensional monitoring and controlling and dispatching, not only the security of bus running and the intelligence of bus stop announcement can be enhanced, but also the real-time grasping of the control center to the number of the passengers can be improved, and the allocation of the rapid bus vehicles can be performed according to the passenger flow volume, and the scheme and the support method are provided for the automation, the safety running and the management of the rapid bus system.
Owner:SHANDONG UNIV
Three-frequency frequency reconfigurable antenna for coplanar waveguide feed
InactiveCN102437420AImproving Impedance MatchingReduce designSimultaneous aerial operationsRadiating elements structural formsReconfigurable antennaMetal coating
The invention relates to a three-frequency frequency reconfigurable antenna for coplanar waveguide feed, which comprises a metal microstrip on the upper layer, a dielectric substrate on the middle layer and a back floor board on the lower layer. The metal microstrip comprises a radiating patch, a coplanar waveguide floor board, a coplanar waveguide feeder, a matching branch and four PIN (P-Intrinsic-N) diodes, and the radiating patch is surrounded by the coplanar waveguide floor board. The coplanar waveguide floor board is connected with the radiating patch through the four PIN diodes, the coplanar waveguide feeder is arranged at a central opening on the lower edge of the coplanar waveguide floor board and is connected with the radiating patch into a whole, and the matching branch is connected with the upper part of the coplanar waveguide floor board into a whole. The back floor board is arranged on the back of the dielectric substrate and corresponds to metal coatings on the lower part of the coplanar waveguide floor board and under the coplanar waveguide feeder, and a microstrip antenna is formed by the back floor board and the metal microstrip. The three-frequency frequency reconfigurable antenna can work on three wireless communication frequency bands of 0.9GHz, 1.8GHz and 2.4GHz. Moreover, directional diagrams on the three frequency bands basically remain unchanged and have larger bandwidth. Meanwhile, the design of a switch bias circuit can be eliminated, and the impact of a switch on the radiation performance of the antenna can be reduced.
Owner:SHANGHAI UNIV
Control method of uplink power of long term evolution (LTE) system
InactiveCN101986752AMeet transfer requirementsPower managementEnergy efficient ICTCurrent cellClosed loop
The invention discloses a control method of uplink power of a long term evolution (LTE) system, comprising open loop power control and closed loop power control. The open loop power control comprises the following steps: three interference thresholds IOT1, IOT2 and IOT3 are preset in a base station, and the interference signal sent by a terminal is periodically detected, wherein IOT1<IOT2<IOT3; when the strength X of the interference signal is larger than IOT1, the base station sends a feedback signal to reduce the uplink power of the terminal, the reduction range is delta TdB, wherein the delta T is an amount associated with the real-time uplink power of the terminal and the distance among the cell base stations. When the method disclosed by the invention is used for controlling the closed loop power, the reduction amplitude of the uplink power is determined by the path difference values from the terminal to the current cell and the disturbed cell as well as a threshold value exceeded by the uplink power, and when the uplink power intensively interferes the adjacent cell, the uplink power can be regulated by using the control method to a proper value in a short time to meet the transmission requirement.
Owner:ZHEJIANG COMM SERVICES
Data transmission method, intelligent acquisition equipment, intelligent terminal and cloud server
ActiveCN105554787AImprove experienceReduce stepsConnection managementData transmissionTransmission delay
The embodiments of the invention provide a data transmission method, intelligent acquisition equipment, an intelligent terminal and a cloud server. The method comprises: after detecting a valid wireless local area network (WLAN), acquiring a service set identifier of the WLAN, packaging the service set identifier and an identifier of the intelligent acquisition equipment into a data message, and sending the data message to the cloud server via the mobile internet; after receiving a network direct-connection message returned with respect to the data message by the cloud server via the mobile internet, accessing to the WLAN, and detecting the transmission rate of the WLAN; and if the detected transmission rate is lower than a preset transmission rate threshold, establishing a point-to-point connection with the intelligent terminal according to pre-stored network configuration information, and sending the acquired data to the intelligent terminal by the point-to-point connection. By adopting the method, the intelligent terminal can continuously receive and display data under the condition that the speed of the WLAN is instable, so that the user experience is improved.
Owner:BEIJING QIHOO TECH CO LTD
Voice communication method based on mobile sensor network
InactiveCN101291262ARealize multiplexingAvoid collisionError prevention/detection by using return channelNetwork topologiesMobile wireless sensor networkVoice communication
The invention discloses a speech communication method based on a mobile wireless sensor network. The speech communication method comprises the following steps of network building, network maintenance and speech communication; in the network assembly step, a sensor node in the network appoints a cluster head according to a certain rule; the other nodes are totally cluster members; according to T time, the network is divided into a superframe which is inside provided with a beacon frame and a plurality of small time slots and used for the competition between nodes and the reserved data sending; in the network maintenance step, the node in the cluster head broadcasts a beacon frame in the whole network every N superframe cycles; the same strategy in assembling the network is used; all the nodes of the whole network pass through a monitoring channel and maintain own adjacent node tables according to the monitored information; in the speech communication step, the speech communication is carried out among the cluster members and between the cluster members and the node of the cluster head. The speech communication method is suitable for the mobile speech sensor network establishment, speech communication management and other aspects.
Owner:JIAXING WIRELESS SENSOR NETWORKS CENT CAS
Method and device for switching work modes of wireless local area network access device
InactiveCN101754471AReduce energy consumptionMeet transfer requirementsPower managementEnergy efficient ICTComputer scienceEnergy consumption
The invention discloses a method and a device for switching work modes of a wireless local area network access device. The method comprises the following steps: two or more different work modes of the wireless local area network access device are preset, and different work modes have different working performances and different power consumptions and are respectively applicable to different network states; and when a hardware button state is changed or a network state is changed, and if the switching condition of the work mode is satisfied, the work mode is switched to another work mode. The device comprises a preset module and a switching module, wherein the preset module is used for presetting the work modes of the access device, and the switching module is used for switching the work modes of the access device. On the premise that the network transmission requirements and the user requirements are satisfied, the access device stays at an energy-saving working state so as to integrally reduce the energy consumption of the access device.
Owner:ZTE CORP
Vehicle-road communication downlink wireless resource distribution algorithm
ActiveCN104837205AGuaranteed distributionGuaranteed normal transmissionWireless communicationQuality of serviceNon real time
The invention provides a vehicle-road communication downlink wireless resource distribution system, comprising a business flow input module and a business classifier connected with the business flow input module. The business classifier is used for classifying business flows. The business classifier is connected with a first scheduling module and a second scheduling module. The first scheduling module is used for scheduling real-time business flows in a differentiate manner. The second scheduling module is used for scheduling non-real-time business flows. The first scheduling module is also connected with the second scheduling module, so that the real-time business flows are enabled to have the priority in scheduling. When the real-time business flows are scheduled and wireless resources are surplus, the scheduling of the non-real-time business flows is started. According to the algorithm provided by the invention, channel sensing requirements are met, time delay QoS (Quality of Service) guarantee of the real-time business flow is provided, the priority of business flows related to traffic safety and the fair scheduling of concurrent real-time business flows are both considered, and the balance among the throughput, the fair index and the QoS support is ensured.
Owner:CHANGAN UNIV
Transmission line state monitoring communication system
InactiveCN102682586AImproving the State Monitoring Level of Transmission LinesHigh bandwidthElectric signal transmission systemsNetwork topologiesData transmissionCondition monitoring
Owner:STATE GRID ELECTRIC POWER RES INST +3
Common public radio interface (CPRI) frame-based wavelength division multiplexing-passive optional network (WDM-PON) mobile and fixed integrated access system
ActiveCN103281599AMeet transfer requirementsSimple structureMultiplex system selection arrangementsWavelength-division multiplex systemsFiberFrame based
The invention discloses a common public radio interface (CPRI) frame-based wavelength division multiplexing-passive optional network (WDM-PON) mobile and fixed integrated access system, and relates to the field of PON access. The mobile and fixed integrated access system comprises a mobile and fixed integrated access optical line terminal (OLT), an optional distribution network (ODN) and a plurality of mobile and fixed integrated access optional network units (ONUs); the mobile and fixed integrated access OLT is connected with the mobile and fixed integrated access ONUs through the ODN; the mobile and fixed integrated access OLT comprises a local end relay framing module, N parallel local end WDM-PON optical modules and a coupler, wherein N is a positive integer and N is greater than or equal to 8 and is less than or equal to 64; the local end relay framing module is connected with the coupler through the N parallel local end WDM-PON optical modules; each mobile and fixed integrated access ONU comprises a far end framing module and a far end WDM-PON optical module; and the coupler is connected with each WDM-PON optical module through the ODN. By the CPRI frame-based WDM-PON mobile and fixed integrated access system, mobile service and fixed network service can be transmitted at the same time; deep coverage of mobile radio signals of an operator can be realized; and the trunk fiber resources accessed in a network can be saved.
Owner:FENGHUO COMM SCI & TECH CO LTD
Intelligent home system based on wireless remote control technology
InactiveCN105407020ARealize intelligent detectionRealize anti-theft functionTransmission systemsData switching by path configurationAutomatic controlEngineering
The invention relates to an intelligent home system based on a wireless remote control technology. The intelligent home system comprises an IOT platform, an intelligent home controller, an intelligent home control centre, a mobile intelligent terminal and parameter detection equipment; the mobile intelligent terminal and the intelligent home controller are controlled through wireless communication; the mobile intelligent terminal and the intelligent home control centre are connected through a wireless network; the parameter detection equipment is used for detecting a parameter to be sampled of a house in real time and generating a corresponding parameter signal; and the intelligent home control centre sends the parameter signal detected by the parameter detection equipment to the IOT platform, such that control is carried out. According to the invention, the advanced technologies, such as an intelligent home technology, an indoor positioning technology, a sensor technology and a wireless transmission technology, are integrated; multiple functions, such as voice control, intelligent service discovery control, intelligent environmental adjustment, intelligent safety protection and intelligent energy-saving, can be realized; intelligent control and automatic control are realized; and thus, relatively high intelligent living requirements of people can be satisfied.
Owner:DALIAN DAWEI TECH CO LTD
Unmanned aerial vehicle SAR imaging method and apparatus
ActiveCN109655831AReduce weightReduce volumeRadio wave reradiation/reflectionImaging processingImaging quality
The invention provides an unmanned aerial vehicle SAR imaging method and apparatus for an unmanned aerial vehicle SAR imaging system. The unmanned aerial vehicle SAR imaging system comprises a pre-processing end and a fine processing end. The method comprises the steps of receiving a SAR echo signal, and judging whether extraction of an azimuth pulse signal of the SAR echo signal is needed or not;extracting the azimuth pulse signal of the echo signal to generate a first pulse signal; filtering the first pulse signal or the SAR echo signal, and extracting the filtered signal to generate a second pulse signal; conducting distance FFT on the second pulse signal to generate a distance compression signal; accumulating a plurality of distance compression signals, and conducting azimuth FFT on the azimuth directions of the multiple distance compression signals to generate a preprocessing signal; sending the pre-processing signal to the fine processing end, so that the fine processing end conducts imaging processing on the preprocessing signal to generate a SAR image. By means of two-step processing of the pre-processing end and the fine processing end, the located weight and power consumption of the unmanned aerial vehicle are reduced, and the image quality is also improved.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI
Information transmission method, receiving processing method, front end and transceiving system
InactiveCN102137280ASend and receive in real timeReduce occupancy ratioTelevision systemsSelective content distributionDynamic bandwidth allocationRAID
The invention provides an information transmission method, a receiving processing method, a front end and a transceiving system. The information transmission method comprises: a step of grouping, in which data to be sent is grouped into a real-time data group and a conventional data group, and the grouped data is optimized respectively; a step of pre-processing, in which the data in the real-time data group is subjected to redundant array of independent disk (RAID) grouping, and the data in the conventional data group is unpacked; a step of dynamic bandwidth, in which a dynamic bandwidth allocation technology is adopted to adjust the sending speed of each group according to the grouping property of the data and data size, on the premise of not exceeding the limitation of a total bandwidth, so as to maintain a corresponding frequency for bandwidth utilization; and a step of data sending, in which a ground digital television front end transmits the data.
Owner:RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN
Method and device for adjusting power
ActiveCN101577960AMeet transfer requirementsPower managementEnergy efficient ICTElectrical and Electronics engineeringMass measurement
Owner:CHINA MOBILE COMM GRP CO LTD
Grid-oriented configurable data transmission method and system
InactiveCN101212401AControl sending speedStable rateData switching networksReliable transmissionEngineering
The invention discloses a transmission system of grid-oriental configurable data which solves the problems of insufficient reliability existing in the prior protocol and high spending of the system operation. The invention comprises the following processes: data communication connection is built between two parties of the communication with a mode of three times handshake; when a fault occurs, the linkage of permanent connection is closed; a receiving and sending synchronization and a flow controlling of the information are carried out by a sliding window; in the data transmission protocol, an authentication technology is adopted for assuring the reliable transmission of the data. The invention, through the receiving and sending synchronization and the flow controlling of the information carried out by the sliding window, achieves function of stabilizing the rate, resending the lost packet and transmitting in sequence. The protocol realizes flow controlling. When the receiver has a value which increases to a right value in the receiving window, the receiver then sends a window notice to the sender under the condition of that the receiving window can be zero for a longer time in a large flow. Through effective controlling carried out for controlling a sending rate of the sender, the phenomenon of occurrence of an over congestion in the network in big flow can be avoided.
Owner:ZTE CORP
Small-diameter optical fiber and preparation method thereof
ActiveCN111323872AIncrease MFD valueGuaranteed macrobending requirementsGlass making apparatusOptical fibre with graded refractive index core/claddingRelative refractive indexOptical fiber transmission
The invention provides a small-diameter optical fiber. The small-diameter optical fiber comprises a bare optical fiber; a coating layer coated on the outer layer of the bare optical fiber. The bare optical fiber includes: a core layer; an optical cladding, coated on the surface of the core layer; a concave layer coated on the surface of the optical cladding; an outer coating layer coated on the surface of the sunken layer. The relative refractive index difference of the optical cladding gradually changes from inside to outside, and the gradual change range is +0.05% to -0.10%. By designing thesection structure of the preform, the optical cladding in the section of the preform is designed in a gradual change manner, so that the MFD value of the optical fiber is improved and is close to orequal to that of a standard optical fiber. Furthermore, due to the design of the concave layer gradient structure, the cut-off wavelength of the optical fiber can be controlled while the macro-bendingrequirement of the optical fiber is met, and the optical fiber transmission requirement is met. The invention also provides a preparation method of the small-diameter optical fiber.
Owner:ZHONGTIAN TECH ADVANCED MATERIALS CO LTD +1
Service message sending method and device
ActiveCN110138610AMeet transfer requirementsData switching networksBandwidth allocation algorithmDistributed computing
The embodiment of the invention provides a service message sending method and device, and relates to the technical field of communication. The method comprises the following steps: identifying the service category of each received service message according to a preset service category identification rule; determining the priority of each service category according to a preset corresponding relation between the service categories and the priorities; according to the priority of each service category, a preset exit total bandwidth and a preset bandwidth allocation algorithm, determining an allocation bandwidth of each service category; and for each service category, sending each service message belonging to the service category according to the distribution bandwidth of the service category.According to the invention, the transmission requirement of the service message can be met.
Owner:NEW H3C SECURITY TECH CO LTD
Shunting coding method for digital video monitoring system and video monitoring system
InactiveCN101841709AMeet monitoring needsReduce resolutionClosed circuit television systemsDigital video signal modificationVideo monitoringDigital video
The embodiment of the invention discloses a shunting coding method for a digital video monitoring system. The method comprises the following steps: decomposing a video into primary video frames and secondary video frames by using two-dimensional wavelet transform; coding the primary video frames to generate a primary code stream and primary video reconstruction frames; and based on the primary video reconstruction frames, coding the secondary video frames to generate a secondary code stream. Corresponding, the embodiment of the invention also discloses a video monitoring system. The video monitoring system comprises a shunting module, a primary code stream coding module and a secondary code stream coding module, wherein the shunting module is used for decomposing the video into the primary video frames and the secondary video frames by using two-dimensional wavelet transform; the primary code stream coding module is used for coding the primary video frames to generate the primary code stream and the primary video reconstruction frames; and the secondary code stream coding module is used for coding the secondary video frames to generate the secondary code stream based on the primary video reconstruction frames. By implementing the invention, the digital video monitoring system can satisfy monitoring requirements for videos with different resolutions and enhance the video compression coding efficiency.
Owner:广东中大讯通信息有限公司 +2
Video resource transmission parameter distribution method and device
ActiveCN110139113AGuaranteed playback qualityMeet transfer requirementsDigital video signal modificationSelective content distributionBroadcast channelsComputer network
The invention discloses a video resource transmission parameter distribution method and device. The method comprises the following steps of during a video live broadcast process, obtaining a to-be-transmitted video resource in a video live broadcast stream; detecting a target video scene corresponding to the video resource, the target video scene being a scene to which content played in the videoresource belongs; distributing a target transmission parameter which corresponds to the target video scene and satisfies a target code limiting threshold value to the video resource, wherein the target coding limiting threshold value is the limiting range of the live broadcast channel for the transmission parameters of the video live broadcast stream, the live broadcast channel is used for transmitting the video live broadcast stream, and the target transmission parameters are the transmission parameters used when the video resources are coded. According to the invention, the technical problemof worse flexibility of transmission parameter distribution of video resources in the prior art is solved.
Owner:TENCENT TECH (SHENZHEN) CO LTD
Method and device for realizing physical random switch-in channel transmission time delay under wide covering
ActiveCN1925363AMeet transfer requirementsRadio/inductive link selection arrangementsRadio transmission for post communicationTime lagTransmission time delay
This invention discloses one realization method covering physical random interface channel time lag, which comprises the following steps: getting real transmission time lag during Node B interface process; using current research area relative transmission time lag message and accuracy to express above real time lag determined by maximum area diameter; Node B sends the transmission time lag into wireless network controller RNC. This invention also discloses one communication device.
Owner:HUAWEI TECH CO LTD
Service data transmission method and apparatus
ActiveCN105722096AIncrease success rateImprove experienceNetwork planningFrequency spectrumCarrier signal
The invention discloses a service data transmission method and apparatus for solving the problems of relatively low success rate of data transmission and poor user experience of a method for UE achieving transmission in an LTE-U carrier cell by means of carrier aggregation in the prior art. The method of the invention comprises that a transmitting device transmits service data through a first cell in an unlicensed spectrum; the transmitting device determines a second cell after determining that the first cell cannot meet the transmission requirement of the service data; and the transmitting device transmits the service data through the determined second cell. Since another cell is determined for transmitting the service data in the embodiment of the invention when the cell in the unlicensed spectrum cannot meet the transmission requirement of the service data, the success rate of data transmission is increased, and thus the user experience is improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
System and method for mobile and fixed comprehensive connection based on WDM-PON
ActiveCN103297166AMeet transfer requirementsSimple structureWavelength-division multiplex systemsTime-division multiplexDistribution frameOptical Module
The invention discloses a system and method for mobile and fixed comprehensive connection based on a WDM-PON and relates to the field of PON connection. The system for mobile and fixed comprehensive connection comprises a mobile and fixed comprehensive connection OLT, an ODN and a plurality of mobile and fixed comprehensive connection ONUs. The mobile and fixed comprehensive connection OLT is connected with the mobile and fixed comprehensive connection ONUs through the ODN. The mobile and fixed comprehensive connection OLT comprises a local side power distribution frame combining module, N side-by-side local side WDM-PON optical modules and a coupler, wherein N is a positive integer, and an inequation 8<=N<=64 is satisfied. The local side power distribution frame combining module is connected with the coupler through the N side-by-side local side WDM-PON optical modules. Each mobile and fixed comprehensive connection ONU comprises a far side frame combining module and a far side WDM-PON optical module. The coupler is connected with each far side WDM-PON optical module through the ODN. The system for mobile and fixed comprehensive connection based on the WDM-PON can transmit mobile services and fixed network services simultaneously, the deep covering of mobile wireless signals of an operator can be achieved, and main optical fiber resources for network connection can be saved.
Owner:FENGHUO COMM SCI & TECH CO LTD +1
Electric smart automobile communication network system based on extensible annular Ethernet
ActiveCN105703995AMeet transfer requirementsReduce in quantityElectric/fluid circuitData switching networksExtensibilityInner loop
The invention relates to an electric smart automobile communication network system based on extensible annular Ethernet. The system includes an inner loop network which comprises a plurality of controllers and corresponding inner loop Ethernet switches, wherein the controllers are connected through corresponding Ethernet port of the inner loop Ethernet switches in a loop so as to form an intelligent decision and control unit used for performing collection and processing on information data of an electric smart automobile; a plurality of peripheral networks taking the inner loop network as the first node and connecting a plurality of intelligent sensors or intelligent actuators of the electric intelligent automobile successively through corresponding Ethernet ports of peripheral Ethernet switches for forming a peripheral linear network or annular network, wherein each peripheral Ethernet switch is provided with an extensible Ethernet port used for connecting with an extension network. Compared with the prior art, the system provided by the invention has advantages of low communication network cost, high stability, good extensibility and the like.
Owner:TONGJI UNIV
Method and device for transmitting information between base stations
ActiveCN103856291AImprove interaction efficiencyGuaranteed growthError preventionInformation needsBase station
The embodiment of the invention discloses a method and device for transmitting information between base stations. The method and device are used for solving the problem that in the prior art, interaction of all the information cannot be conducted in time between all the base stations. The method comprises the steps that the first base station selects a first signaling connection which meets the transmission requirement of the first information needing interaction from at least two established signaling connections with different transmission characteristics, and sends the first information to the second base station through the first signaling connection; interaction of the second information related to the first information is conducted between the first base station and the second base station through a second signaling connection different from the first signaling connection. According to the method and device for transmitting the information between the base stations, since interaction of the information and information related to the information can be conducted between the first base station and the second base station through different signaling connections, the efficiency of information interaction between the base stations is improved, and the transmission characteristics of information interaction between the base stations are also improved.
Owner:DATANG MOBILE COMM EQUIP CO LTD
Plug-socket integrated connector with board-to-board butting compatibility function
ActiveCN104518352AAvoid misalignmentSeamless connectionSecuring/insulating coupling contact membersEngineeringMechanical engineering
Owner:SHENZHEN LINKO ELECTRIC
A method and system for selecting an access channel rate
ActiveCN102300268AMeet transfer requirementsNetwork traffic/resource managementData transmissionChannel data
The present invention discloses a method and a system for selecting access channel rate. The method includes the following steps: a terminal negotiates with a base station about the supported access channel rate level including the lowest rate level support ability (100); the terminal selects the access channel rate between the maximal access rate and minimal access rate of the access channel levels supported by the both sides (101).The method of the present invention introduces more access rate level for the access channel, and increases the corresponding field marks, and insures the effective selection of access channel data transmission rate which meets the data transmission requirement and considers the network load.
Owner:ZTE CORP
High-speed real-time data acquisition and transmission module
InactiveCN109560858AImprove toleranceAvoid influenceRadio transmissionReal-time dataCommunications system
The invention discloses a high-speed real-time data acquisition and transmission module, and aims to provide a real-time data acquisition and transmission module which can meet data transmission requirements of a high-speed satellite communication system and has high tolerance for the rate fluctuation of high-speed data transmission. The high-speed real-time data acquisition and transmission module is implemented according to the following technical scheme: a frame data flow enters a real-time data acquisition unit through a hardware data bus, the traditional mode of acquiring data in a centralized manner within 1s is changed into piecewise acquisition and processing with millisecond-level interval time, and memory application and decoupling isolation of module units such as a data acquisition unit, a storage unit and a transmission unit are performed by adopting a cache sequence; the real-time data acquisition unit respectively transmits the acquired frame data flow to a real-time data recording unit and a real-time data transmission unit, the real-time data recording unit transmits the frame data flow to a disk array for storage, and the real-time data transmission unit carries out data caching also by adopting a cache sequence and transmits the data to back-end equipment by adopting a TCP (Transmission Control Protocol).
Owner:10TH RES INST OF CETC
LDPC (Low Density Parity Check) encoder
InactiveCN102684707AImprove data processing speed and throughputImprove coding efficiencyError correction/detection using multiple parity bitsAlgorithmComputer module
The invention provides an LDPC (Low Density Parity Check) encoder. When the LDPC encoder generates an S matrix, a parallel calculation method is adopted; and elements of one row of the S matrix are updated by using one group of information bits output by an RAM (Random Access Memory) updating and calculating module. When the sum of an S matrix array is calculated, the manner that after the S matrix is completely generated, each row of the elements of the S matrix are subjected to XOR is not adopted; the information bits output by the RAM updating and calculating module is directly calculated to obtain an S matrix array sum, and the result of the S matrix array sum and an S matrix array generating result are obtained at the same time, so as to shorten the generation time of a checking bit. Furthermore, the RAM updating and calculating module only circulates and displaces toward one right direction in an encoding process; an RAM address and displacement factor generation module is used for sequencing an RAM address for reading and writing from a sequence from small to big according to a corresponding displacement value, and the displacement value is sequentially output to the RAM updating and calculating module for circulating and displacing, so that the complexity of displacement is reduced and the encoding time is further shortened.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
MPO/MTP cluster prefabricated optical cable component
ActiveCN104597577AReduce volumeEasy to installCoupling light guidesFibre mechanical structuresEngineeringOptical fiber connector
The invention discloses an MPO / MTP cluster prefabricated optical cable component which comprises an adapter component, a first plug body component and a second plug body component. Two ends of the adapter component are open and through to form an inner cavity, a guide part is disposed in the middle of the inner cavity, and sealing bodies are respectively disposed on two sides of the guide part. The first plug body component is disposed outside a first optical fiber connector. One end, located at the head of the first optical fiber connector, of the first plug body component is provided with an opening to allow the head end face of the first optical fiber connector to be exposed. The second plug body component is disposed outside a second optical fiber connector. One end, located at the head of the second optical fiber connector, of the second plug body connector is provided with an opening to allow the head end face of the second optical fiber connector. The opening end face of the first plug body component and the opening end face of the second plug body component are respectively correspondingly connected with the sealing bodies in the adapter component. The head of the first optical fiber connector and the head of the second optical fiber connector are aligned and coupled in the guide part of the adapter part to achieve dust prevention and water prevention.
Owner:SHANGHAI SFUN ELECTRICAL TECH
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