206results about How to "Normal communication" patented technology

The embodiment of the invention provides a communication method for a carrier aggregation system and relates to the technical field of communication. The method is invented for effectively ensuring the normal communication of a base station and user equipment. The communication method comprises the following steps that: physical downlink sharing channel (PDSCH) information issued by a base station through a sub frame n of an auxiliary cell is received; when the sub frame n of a main cell is a downlink sub frame, acknowledgement / negative acknowledgement (ACK / NACK) feedback of the issued PDSCH information is carried out on a sub frame m or a sub frame p of the main cell, wherein m is a sub frame index of the sub frame of the ACK / NACK for feeding back the PDSCH of the sub frame n of the main cell in the main cell according to the ACK / NACK timing relationship corresponding to the sub frame n of the main cell, and p is a sub frame index of the sub frame of the ACK / NACK for feeding back the PDSCH of the sub frame n of the auxiliary cell in the auxiliary cell according to the ACK / NACK timing relationship corresponding to the sub frame n of the auxiliary cell. The method provided by the invention can be used in the carrier aggregation system.

A radio communication system has a fixed radio communication unit that sends a request for authentication, and portable radio communication units. Each portable radio communication unit receives the request, transmits presence information to the portable radio communication units, and determines whether presence information from more than one portable radio communication unit was received. When it is determined that the presence information from only one portable radio communication unit was received, the portable radio communication unit transmits an answer to the fixed radio communication unit. When it is determined that presence information from more than one portable radio communication unit was received, each portable radio communication unit sets a response delay time by a specified setting method, and after a lapse of the response delay time, an answer is sent to the fixed radio communication unit. The fixed radio communication unit authenticates the portable radio communication units that sent the answer.

The invention discloses a method and base station for realizing channel transmission. The method comprises the steps that the base station determines a sub-frame set employed by a downlink control channel and / or the sub-frame set employed by a downlink service channel; and the base station schedules the downlink service channel across sub-frames through the downlink control channel. According to the method provided by the invention, the base station determines the sub-frame set employed by the downlink control channel and / or the sub-frame set employed by the downlink service channel, and the base station schedules the downlink service channel across the sub-frames through the downlink control channel. In a narrow band system and a coverage enhancement system, a timing relationship for channel transmission is prevented from being influenced by the fact that the sub-frames of a multicast / broadcast single frequency network MBSFN for transmitting multicast / broadcast service will occupy the whole system bandwidth, the timing relationship between the base station and a terminal is ensured, the MTC terminal can communicate normally, and the working quality of a system is improved.

The invention relates to mobile communication field, discloses a mobile communication system and a mobile communication method, in condition of a mobile communication system comprising a relay station, the communication between terminals, a termial and a base station is normal. A Relay MAC function is added for the MAC layer, a simple relay can be realized; a Relay RRC function is increased in the RRC layer, a complex relay can be realized cooperating with Relay MAC. A physical layer supports various modes, such as FDD and TDD, a function of supporting various modes is added for the MAC layer, thereby the MAC layer can support access of terminals with various modes. The MAC layer supports point-to-point communication. A safe sublayer is added between the RRC layer and the MAC to improve communication safety. A cooperative radio resource management layer is also added on the RRC layer for coordinating and managing radio resources of different systems.

The invention provides a method for recognizing a pseudo base station by a mobile terminal and the mobile terminal, and relates to the technical field of communication. The method solves the problem that in the prior art, the third-generation and fourth-generation cellular mobile network pseudo base stations cannot be recognized. The method comprises the following steps that after the RRC (radio resource control) connection is built with a first base station, a message sent in a process of controlling and releasing the RRC connection of the mobile terminal by the first base station is received; according to the received message, whether the mobile terminal is redirected to a second base station or not is judged; if the mobile terminal is redirected to the second base station, the first base station and the second base station are determined into pseudo base stations, wherein the mobile communication system grade of the second base station is lower than the mobile communication system grade of the first base station. By using the technical scheme, when the pseudo base station of the mobile communication system at a higher grade uses the mobile communication system at a lower grade to communicate with the mobile terminal, the recognition on the pseudo base station is realized; the third-generation and fourth-generation cellular mobile network pseudo base station can be recognized.

The invention relates to the technical field of smart cars, and provides a simultaneous translation method and device, a smart car-mounted terminal and a storage medium. The method comprises the following steps of: obtaining a to-be-translated voice on the basis of a simultaneous translation request; carrying out voice recognition on the to-be-translated voice so as to obtain a to-be-translated text; carrying out language recognition on the to-be-translated text so as to obtain a to-be-translated language corresponding to the to-be-translated text; and translating the to-be-translated languageinto a target language text according to a preset corresponding relationship between the to-be-translated language and a target language, and outputting the target language text in a voice manner. According to the method, languages of to-be-translated voices are automatically recognized, so that automatic translation between two languages is realized and persons having language barriers in the cars can communicate normally.

The invention relates to an IEC (integrated Ethernet chip) 104 communication host-standby switching method under high redundancy configuration. A first monitoring system server and a second monitoring system sever which are adopted as monitoring systems of a master station are divided into a host machine and a standby machine; and four ports of the host machine and the standby machine are named as A1, A2, B1 and B2 respectively, wherein, one of the four port is a main port, the other three ports are standby ports, the four ports are peer-to-peer, and the switching sequence of control right isA1,A2, B1, B2, A1, A2..., thereby forming a logical ring. A channel state and a control right belonging state which are needed when the four ports of the monitoring system are switched are obtained from a real time database of the monitoring system, the port is suspended for preset time after the control right is received, and then the control right is switched. Data is all broadcasted firstly and is written into the real time database by a broadcast. The IEC 104 communication SOE (sequence of event) data is ensured to be transmitted in each channel simultaneously by the policy provided by the method under the configuration with two host machines and four channels of the monitoring system, and the consistency and the integrality of the IEC104 communication data can be ensured under all conditions.

The invention is suitable for the technical field of electronics and provides a pair of intelligent glasses. The intelligent glasses comprise intelligent glasses lenses, an intelligent glasses frame, a left camera, a right camera, an infrared LED (Light Emitting Diode), an MCU (Micro Controller Unit), a voice broadcasting module and a communication module, wherein the infrared LED is used for emitting infrared rays; the left camera is used for receiving a scattered signal of the infrared rays and transmitting the scattered signal to the MCU, and the scattered signal is generated in a way that the infrared rays are reflected by fingers; the right camera is used for receiving the scattered signal of the infrared rays and transmitting the scattered signal to the MCU; and the MCU is used for obtaining a stereoscopic image of the fingers according the scattered information and a binocular stereoscopic vision technology, controlling the communication module to transmit the stereoscopic image of the fingers to a receiving terminal and controlling the voice broadcasting module to broadcast voice information. According to the technical scheme provided by the invention, the intelligent glasses have the advantage that normal communication between a deaf-mute and a normal person can be realized.

The invention discloses a maritime wideband wireless communication system which can realize broadband wireless communication among moving ships on the sea surface and solve the problems that the communication bandwidth is narrow, the communication distance is short, the communication chain is unstable (a ship body shakes) and the like when the existing communication system is used among the ships on the sea surface. The maritime wideband wireless communication system mainly comprises a set of central station and multiple sets of mobile stations, wherein the central station and the mobile stations are respectively mounted on different ships, the ship on which the central station is mounted can be communicated with any ship on which one mobile station is mounted. The central station and the mobile stations are same in structure and respectively comprise an antenna, an outdoor unit, an indoor unit and a network switch. For meeting the requirements of remote and wideband transmission under a specific environment of the sea surface, the emitting efficiencies of the antennas in the system are within a frequency range of 430 MHz to 860 MHz; and for resisting the storm wave swinging on the sea surface and guaranteeing the stability of communications links, omnidirectional antennas having receiving and transmitting functions are used as the antennas in the system, and two antennas with same performances form a V shape.

The invention discloses a method for controlling the parallel redundancy of an MVB master. According to the method, two identical VCM modules are used as bus master modules, and the two VCM modules are connected into a network system simultaneously and monitor the state of an MVB simultaneously; under the condition that a master module on the MVB has a failure or is lost, a standby main module conducts redundancy switch, becomes a bus master and takes over the MVB. The method for controlling the parallel redundancy of the MVB master has the advantages that the principle is simple, and the reliability and the usability of the whole network system can be improved.

The invention provides a message forwarding method, an apparatus, and a system. The method includes: a first message sent by a gateway is received and analyzed, and a source IP address and a source MAC address of the first message are obtained; a host cache table is inquired, and when the host cache table does not have a mapping relation between the source IP address and the source MAC address, the mapping relation between the source IP address and the source MAC address is saved in the host cache table; according to the first message, a response message is generated, the host cache table is inquired, and a first destination MAC address corresponding to a first destination IP address in the response message is obtained; and according to the first destination MAC address corresponding to the first destination IP address in the response message, the response message is forwarded to an external network via the gateway. According to the message forwarding method, the apparatus, and the system, as long as paths dependent on bidirectional messages are consistent, operating business can work in a normal manner.

The invention provides a self-adaptive method, a self-adaptive device of a voice frequency interface, and an electronic signature tool. The self-adaptive method comprises the following steps of: not performing an identification operation for a first pin and a second pin of the voice frequency interface when an absolute value of a voltage difference between the first pin and the second pin is judged to be less than or equal to a first threshold value; judging the types of the first pin and the second pin of the voice frequency interface through the plus-minus value of the voltage difference when the absolute value of the voltage difference between the first pin and the second pin is larger than or equal to a second threshold value; determining that the second threshold value is larger thanor equal to the first threshold value; judging whether the first pin is used as a microphone pipe and the second pin as a ground pin when the absolute value of the voltage difference is larger than or equal to the second threshold value, if so, determining that the first pin is used as the ground pin and the second pin as the microphone pin; and connecting the identified ground pin with a public ground. According to the invention, the detected ground pin is connected with the public ground of voice frequency signal receiving equipment, and thus the normal communication between voice frequencysignal sending equipment and the voice frequency signal receiving equipment through the voice frequency interface can be ensured.

The invention discloses a calibration system and method for the amplitude-phase error of a receiving channel of a spaceborne DBF (Digital Beam Forming) network. The system comprises a calibration signal generating module, a calibration signal transmitting module, a receiving channel and calibration interface module, and a calibration algorithm execution module, wherein the calibration algorithm execution module comprises an amplitude-phase error estimator and a calibration factor generator; the calibration signal generating module comprises an orthogonal pseudo random code block generator and a BPSK (Binary Phase Shift Keying) modulator; the calibration signal transmitting module comprises a digital up converter, a DA inverter, an analog up converter and a calibration feed source; the calibration signal generating module is connected with the calibration signal transmitting module; and the calibration algorithm execution module is connected with the receiving channel and calibration interface module. The system and the method provided by the invention have the advantages of strong real-time performance, high precision and high stability, and save satellite resources.

The invention proposes a beamforming and power distributing method for service quality guarantee of high-speed rail cars. Firstly, a minimum rate requirement of each car fed back by an internal accesspoint of a train is obtained by using a base station; then, it is judged whether the transmission power provided by the base station can meet the minimum rate requirement of each car of the train; afterwards, different manners are selected to determine a beam distribution scheme according to a judgement result; after the beam distribution scheme of each moment is obtained, power distribution is optimized so as to maximize the total mobile service volume of the train. The method in the invention considers the rate fairness problem of different users each moment the train passes through a coverage area of the base station and maximizes the total mobile service volume of the train under the condition.

The invention discloses a public resource transaction platform management system. Bottom encryption, bid evaluation conclusion encryption, and signature encryption, a bid inviting unit uses a single person and a bid evaluation expert to contact with each other by using a number-changing number. However, the bid base is still public after bid opening. The bid evaluation conclusion is also disclosedon the public resource transaction platform management system. The name starting parts of the paper documents and the electronic documents for bidding and tendering adopt the same name, thereby facilitating queries and management. According to the public resource transaction platform management system, the influence of various human factors on bidding can be reduced as much as possible through anencryption technology. Using technological means, whether a bid inviting unit or a bid evaluation expert is undoubtedly leaked or deliberately disclosed, through technical management and control, especially through encryption and decryption of a bid base amount, and decryption of the bid base amount, the bid evaluation expert and the bid inviting unit, decryption is limited to be disclosed 2 hours before a bid opening activity and to be decrypted only 1 hour after the bid opening activity, and various paths of bid base revealing are eradicated.

The invention provides a network reselection method and a mobile terminal. The method comprises the steps of detecting signal strength under a network resided by a mobile terminal; if the signal strength is smaller than a preset signal strength threshold, searching frequency points supporting target networks from an LTE (Long Term Evolution) frequency point information list; obtaining the lowest access threshold of the frequency points supporting the target network and carrying out resection measurement on the frequency points supporting the target networks; determining one frequency point from the frequency points supporting the target networks as a target frequency point according to the lowest access threshold of the frequency points supporting the target networks and a resection measurement result; and switching the network resided by the mobile terminal to the network of the target frequency point. According to the network reselection method provided by the embodiment of the invention, when the signal strength of the mobile terminal is weak, the network can be switched to a narrowband cellular network with relatively high coverage capability, so the mobile terminal can carry out normal communication, and the communication capability of the mobile terminal is improved.

The invention relates to an electric meter box, in particular to a power purchase type intelligent electric meter box. The electric meter box comprises a power supply device, an electric meter, a breaker and a terminal, wherein the power supply device is arranged in the box body; the power supply device is connected with the electric meter and the breaker through a current inductor. The electric meter box is characterized in that a signal booster is arranged in an electric meter box body; an indicating part and an interacting platform are arranged on the outer side of an inner door of the box body; a high-receiving sensitivity antenna is arranged outside the box body through a universal joint; the breaker and the terminal are connected with the indicating part; the breaker, the electric meter, the interaction platform and the signal booster are connected with a current-using management terminal; the signal booster is connected with the high-receiving sensitivity antenna; the breaker, the current-using management terminal and the indicating part form an alarming-tripping circuit. The electric meter box has the advantages that equipment is advanced, layout is reasonable, the electric meter box can prevent electric shock, on-site switching on / off is realized, signal boosting is realized, and the function of an interaction platform is realized.

The invention provides an internet-based communication method and an internet-based communication terminal and aims to solve the problems of forward time delay and complexity in communication process. The method comprises the following steps of: generating a first number which is used for uniquely identifying each terminal for the terminal, and generating a second number which is used for communicating the terminal with other terminals; acquiring an address book by two communicating terminals from each other, and storing the address book which contains opposite information; searching a network link address and a port number, which are matched with the second number of a called terminal in the address book by a calling terminal, and calling the called terminal through the network link address and the port number, which are searched; after the called terminal is called, connecting the called terminal and the calling terminal according to the network link address and the port number of the calling terminal; and communicating the calling terminal and the called terminal. Third-party equipment is not required to participate in the communication process, and the communication process is self-completed by the terminals, so the forward time delay is avoided, and the communication process is simplified.

The invention discloses a power control method and device. The power control method is suitable for electronic equipment which can emit signals to uplink channels of different types. The power control method comprises the steps of acquiring emission power control signals, determining the channel types of the uplink channels where the electronic equipment are emitting signals, and carrying out back-off operation of different power on the uplink channels according to the channel types. Accordingly, in the power control method and device, when power control is conducted on all the uplink channels, a connecting establishing channel and other uplink channels can be differentiated, so that power back-off is conducted on the connecting establishing channel and the other uplink channels through different modes, and therefore good balance is achieved on the aspect of guaranteeing the health of a user and the aspect of achieving normal communication.

The invention discloses an automatic restoring circuit for groove signals of a contactless card. The automatic restoring circuit comprises an RF (radio frequency) module, an N-bit counter, a preset value module, a comparer and a data latch, wherein the RF module is used for receiving radio frequency signals and restoring clock signals which include data information; the N-bit counter is used for counting low-level duration time of the groove signals outputted by the RF module; the preset value module is used for presetting a maximum tolerable low-level duration time value of the groove signals; the comparer is used for comparing an output value of the counter with the preset value, and outputting a marking signal when the output value is equal to the preset value; and the data latch is used for sampling the marking signal outputted by the comparer, obtaining the marking signal at the output end Q of the comparer and enabling the RF module to restore by the aid of the marking signal so as to enable the groove signals to restore to the correct high level. The groove signals can restore to the correct high level to enable subsequent communication to be proceeded normally when the groove signals are overlength.

The embodiment of the invention provides a communication method based on a PLC, a device and a PLC networking system and relates to the field of communication. Alternating current power lines led out of an inverter do not need to be distinguished during communication, engineering installation is easy and convenient, and transmission reliability is high. The communication method comprises the steps that firstly, a set of modulating signals transmitted by a sending end via two of the N power lines are received, wherein the modulating signal set comprises two modulating signals, and the power lines corresponding to any two modulating signal sets are not identical; secondly, difference operation is carried out on one modulating signal set, a differential signal is obtained and demodulated, and a demodulating signal is obtained; the first step and the second step are executed for many times shown in the specification, and demodulating signals with the number shown in the specification are obtained; the first demodulating signal with the maximal signal strength in the demodulating signals serves as a demodulating source signal.

The present invention relates to a storage battery common manager based on digital control. The manager comprises a box body, an SWD download interface, a sampling interface, driving interfaces, a serial screen interface, a RS232 test interface, an upper computer, a communication interface and a CAN communication interface connected with an embedded microcontroller are arranged at the external portion of the box body, and the box body is internally provided with a control circuit board, a four-way PWM driving circuit boards and four-way mosfet circuit branches through fasteners; each mosfet circuit branch comprises mosfet being reversely connected in series and being connected in parallel with a diode in the internal portion of the mosfet, the PWM driving circuit boards respectively drive each mosfet circuit branch through four driving interfaces, mosfet drains are respectively connected with cathodes of four storage batteries through output terminals, the output ends of each two mosfet circuit branches are connected to form a connecting-out terminal, and two connecting-out terminals are connected with the cathode of a switching power supply. The storage battery common manager based on the digital control utilizes a single-chip microcomputer to perform digital control, the driving mode of the mosfet employs PWM driving, and the regulation of the PWM duty ratio is performed to realize pulse charging and discharging.

The invention provides an optimal deployment method of an unmanned aerial vehicle air base station in rapid recovery of railway emergency communication, and belongs to the field of railway communication engineering. The method comprises the following steps: firstly, constructing a position optimization problem of joint ground equipment / facility association and an unmanned aerial vehicle air base station in a two-dimensional space, wherein the target function is obtained by maximizing the total throughput of an air-ground link between the unmanned aerial vehicle and a user, and the constraint conditions are as follows: the throughput of the air-ground link between the unmanned aerial vehicle and the user is not less than a throughput threshold, and the position of the unmanned aerial vehicle is constrained in a fault area; decomposing the problem into two independent sub-problems, namely a user and unmanned aerial vehicle associated sub-problem and an unmanned aerial vehicle position optimization sub-problem; and optimizing and solving the two self-problems by utilizing an iterative algorithm to obtain a final unmanned aerial vehicle deployment position. According to the method, theoptimization position solution of the unmanned aerial vehicle is accelerated, and the emergency communication service capability of the unmanned aerial vehicle can be maximized on the premise that the communication requirements of ground communication equipment are met.

The invention relates to the field of mechanical equipment, in particular to an elevator without a traveling cable. According to the technical scheme for achieving the technical aim, the elevator without the traveling cable comprises an electric energy device for providing electric energy for lift car running and a communication device for providing signal transmission for a lift car; the electric energy device comprises a storage battery arranged on the lift car and a charging device for charging the storage battery, and the charging device comprises a primary coil arranged on a shaft wall and a secondary coil arranged on the lift car; and the communication device comprises a magnetic coupling device arranged on the lift car and a decoder for receiving and decoding signals sent by the magnetic coupling device, and the decoder is electrically connected with a control cabinet. According to the elevator without the traveling cable, the communication and power supply problem of the traveling cable can be solved, power supply is sufficient, communication is smooth, cost is saved, and the attractiveness of the elevator is increased.

The invention discloses a method, a system and a device for realizing state transition and aims to solve the conventional problem that normal communication between a base station and a terminal is not available due to state comprehension difference during state transition. The method comprises the following steps that: a radio network controller (RNC) transmits reconfiguration information to the terminal, wherein the reconfiguration information comprises first activation moment information; the RNC transmits a radio link activating command to the base station, wherein and the radio link activating command comprises second activation moment information; and the activation moment of the first activation moment information is the same as that of the second activation moment information; and the RNC indicates the terminal and the base station to determine the transition state of the terminal according to the first activation moment and the second activation moment respectively. New fields are added in a control signaling of a wireless link, so that the state transition control of the base station and the terminal is realized and the state comprehension of the terminal is accordant with that of the base station. Therefore, the base station can normally communicate with the terminal so that a smooth state transition process is realized.

The invention discloses a communication method, and according to the method, local terminal equipment and opposite terminal equipment mutually notify whether the home terminal equipment and the opposite terminal equipment have control word processing capability or not through a BGP message; after receiving the BGP message carrying the control word indication information sent by the local terminaldevice, the opposite terminal device determines that the local terminal device has the control word processing capability, and when the opposite terminal device also has the control word processing capability, the opposite terminal device sends a service message to the home terminal device, the opposite terminal device carries the control word. And when the home terminal equipment does not have the control word processing capability, the BGP message sent to the opposite terminal equipment does not carry the control word indication information, and the opposite terminal equipment does not carrythe control word when sending the service message to the home terminal equipment. Therefore, normal communication between the network equipment with the control word processing capability and the network equipment without the control word processing capability is effectively ensured, and the reliability of service transmission is improved.

The invention discloses a device for active power balance adjustment and reactive power compensation. The device comprises a common complementary reactive power compensation intelligent capacitor, and a phase-A, phase-B and phase-C respective complementary reactive power compensation intelligent capacitor, and is characterized in that an AC line-line active power balance adjustment intelligent capacitor Cab, a BC line-line active power balance adjustment intelligent capacitor Cbc and a CA line-line active power balance adjustment intelligent capacitor Cca are arranged, wherein the device disclosed by the invention is further capable of carrying out an active power balance adjustment except a common reactive power compensation function, thus improving the utilization rate and safety of a transformer, and reducing line losses. The device disclosed by the invention further solves the problem that the device cannot work when the same MODBUS address exists on the present RS-485.

The invention discloses an automatic protection switching (APS) protocol state transition method and device. The method comprises the steps of: receiving an APS message of an opposite end device in an APS protocol; obtaining an APS state of the opposite end device from information carried in the APS message; obtaining the APS state of a local device; and when the APS state of the local device is a no request (NR) state and a requested signal of the NR state is an invalid signal, transiting the APS state of the local device from the NR state to the DNR (No Not Revert) state. The invention can be used for perfecting and implementing the transition condition of the NR state in the APS protocol and transiting the NR state into the DNR state aiming at the special condition that an NR state device receives the APS message of a DNR state device so that two end devices have consistent states, ensures data streams of the two end devices of the APS protocol are not interrupted, and ensures normal communication.

The invention discloses a communication matching verification method for an automobile electronic key, an automobile electronic key, a communication matching method for an automobile controller, an automobile controller used for communication matching with an automobile electronic key, and a communication matching verification system for an automobile electronic key. The communication matching verification method comprises the steps of detecting a self-recovery identification in the electronic key after the electronic key is in communication matching with the automobile controller, wherein the self-recovery identification is written in by the automobile controller and used for representing whether communication matching succeeds; resetting a communication key written in by the automobile controller in the electronic key into an initial key of the electronic key when it is detected that the self-recovery identification represents that communication matching fails, so that the electronic key can be in communication matching with the automobile controller again. In this way, the problem of resource waste caused when one-time matching fails and the electronic key can not be used again is solved.