108results about "Frequency-division multiplex details" patented technology

The present disclosure relates to a data transmission method, a UE and a network node. The method performed by a network node includes: configuring a first and / or second radio channel for a first PDU session, or configuring a first and / or second radio channel for at least one same QoS flow of a first PDU session. The first radio channel is configured to transmit first data to a UE; the second radio channel is configured to transmit second data to the UE; the first and second radio channels are one of a unicast radio channel, a broadcast or multicast radio channel; the first data represents first data of the first PDU session or first data of at least one QoS flow of the first PDU session; the second data represents second data of the first PDU session or second data of at least one Qos flow of the first PDU session.

The invention relates to the technical field of low-orbit satellite communication, and discloses a multi-channel simultaneous calibration method, system and device based on FDM (frequency division multiplexing) and a medium, which realize high-precision synchronous estimation and compensation of multi-channel amplitude, phase and delay parameters through a frequency division multiplexing and parallel processing mechanism based on FDM. The problem of channel inconsistency in coaxial cable FDM transmission is effectively solved, the calibration efficiency and the system transmission performance are remarkably improved on the premise that the high precision that the amplitude error is not larger than 0.2 dB, the phase error is not larger than 2 degrees and the delay error is lower than 0.01 sampling point is ensured, meanwhile, the calculation complexity and the sequence overhead are reduced, and the system performance is improved. The method is suitable for calibration requirements of high-frequency-width multi-channel systems such as a large phased array of a low-orbit satellite and the like.

The invention discloses a communication method and device, and the method comprises the steps: obtaining the waveform of an electric signal in a charging process, and determining the starting time of a first communication data segment according to the waveform; determining a cut-off moment corresponding to the first communication data segment according to data information needing to be sent to the active communication end currently, generating a charging loop disconnection control instruction at the cut-off moment, and disconnecting the charging loop through the charging loop disconnection control instruction; and transmitting the current data information by using the waveform of the electric signal from the starting moment to the cut-off moment.

The utility model discloses an antenna control system, and relates to the technical field of controlled antenna control, and the system comprises a power management module, a control module and a radio frequency switch module. The power management module, the control module and the radio frequency switch module are connected in sequence; the power management module is also connected with the radio frequency switch module; wherein the power management module is used for converting an external input voltage into a plurality of power supply voltages to supply power to the control module and the radio frequency switch module; the control module is used for collecting an external separation signal, converting the external separation signal into a TTL signal and sending the TTL signal to the radio frequency switch module; and the radio frequency switch module is used for switching the working controlled antenna according to the TTL signal. According to the utility model, the power management module, the control module and the radio frequency switch module are integrated into one system, so that the overall miniaturization and integration of the antenna control system are realized.

Provided are a method and apparatus for managing a radio mode capability, and an electronic device and a computer-readable storage medium. The method for managing a radio mode capability may comprises: when a condition for triggering a process of disabling of a cell with a target radio mode is satisfied, releasing a local radio resource of the target radio mode, wherein the target radio mode is a radio mode may be implemented by using the non-standalone.

The invention discloses a power supply system, a base station and a control method, and relates to the technical field of power supply. The method comprises the steps that the input ends of M voltage conversion modules are connected with a first bus, and the output ends of the M voltage conversion modules are connected with a second bus; the voltage conversion module can convert the first voltage of the first bus into the second voltage of the second bus; the control module can control part of the M voltage conversion modules to be turned off or turned on according to the load connected to the second bus detected by the N detection modules, and the smaller the load connected to the second bus is, the more the turned-off voltage conversion modules in the M voltage conversion modules are. Thus, in the power supply system, the power supply buses with different voltages are adopted to supply power to the load, direct current loss in the power supply process can be reduced, the voltage conversion efficiency of the voltage conversion module is improved, and therefore the power supply efficiency is improved.

The utility model relates to a signal deviation display circuit and device for a nuclear power plant, and the circuit comprises a differential amplification unit which is used for accessing an analog signal and carrying out the amplification and filtering processing of the analog signal, so as to form a signal after difference point processing; the conversion unit is connected with the differential amplification unit and is used for receiving the signal subjected to differential processing and converting the signal subjected to differential processing into a digital signal; the processing unit is connected with the conversion unit and is used for receiving the digital signal and outputting signal deviation information of the analog signal and an alarm control instruction; the display unit is connected with the processing unit and is used for receiving the signal deviation information and displaying the signal deviation information; and the alarm unit is connected with the processing unit and is used for receiving the alarm control instruction and outputting an alarm signal. According to the utility model, drift and noise signals in analog signals can be effectively suppressed, the precision of the analog signals is improved, and the technical effect of accurately displaying analog signal deviation is realized.

The utility model discloses a control circuit used by a mobile terminal. The control circuit comprises a signal input unit, a wireless communication unit and a main control unit, the wireless communication unit is used for establishing wireless connection with a mobile terminal; the input end of the main control unit is connected with the signal input unit, the output end of the main control unit is connected with the wireless communication unit, and the main control unit is used for receiving a control signal input by the signal input unit and sending a corresponding control instruction to a mobile terminal through the wireless communication unit according to the control signal; therefore, the main control unit receives the control signal input by the user through the signal input unit, and sends the corresponding control instruction to the mobile terminal through the wireless communication unit according to the control signal, so that the user can lock and control the mobile terminal at any time, thereby avoiding positive conflicts with children, and improving the use control effect.

The utility model provides a mining intrinsic safety type communication substation, and belongs to the technical field of communication. The mining intrinsic safety type communication substation is characterized in that a first input end of an OR module is used for receiving a temperature signal; or the second input end of the module is used for receiving a gas concentration signal; or the output end of the module and the electromagnetic detection module are both connected with the control module; the first end of the first switch module is connected with the control module, the second end of the first switch module is connected with the communication module, and the control end of the first switch module is connected with the control module; the first end of the second switch module is connected with the control module, the second end of the second switch module is connected with the signal enhancement module, and the control end of the second switch module is connected with the control module; the signal enhancement module is connected with the DC / DC isolation power supply module and the communication module. The DC / DC isolated power supply module is configured to stabilize a power supply voltage. According to the invention, the problems of poor data transmission stability and high energy consumption can be solved.

Aspects of the subject disclosure may include, for example, receiving, at a coherent optical receiver system, Frequency Division Multiplexed (FDM) signals within a spectrum, and equalizing the FDM signals, wherein the equalizing involves creating a plurality of sub-spectra that each corresponds to a respective one of the FDM signals, wherein two sub-spectra of the plurality of sub-spectra have overlapping frequencies, and applying a distinct equalization to each of the plurality of sub-spectra, resulting in distinct equalizations, wherein at least two of the distinct equalizations have substantially independent control. Other embodiments are disclosed.

An example multiplexer may include a first port connected to a power amplifier, a second port connected an antenna, a third port connected to a low noise amplifier, a first filter configured to allow a first transmission signal corresponding to a first frequency band and obtained through the first port to pass therethrough so as to be output to the second port, a second filter configured to allow a second transmission signal corresponding to a second frequency band different from the first frequency band and obtained through the first port to pass therethrough so as to be output to the second port, and a third filter configured to allow a first reception signal corresponding to a third frequency band and a second reception signal corresponding to a fourth frequency band, which are obtained through the second port, to pass therethrough so as to be output to the third port.

An apparatus such as a user equipment configured to support an irregular bandwidth signal. The apparatus comprising multiple means for frequency translating a wireless communication signal in a frequency bandwidth that is different to a predefined bandwidth and for filtering said frequency translated wireless communication signals. Means for adjusting a centre frequency used by the multiple means for frequency translating; and control means. The control means being responsive to receipt of a signal indicating a wireless communication network is currently supporting an irregular channel bandwidth, said irregular channel bandwidth covering two partially overlapping regular channel bandwidths each having said predefined bandwidth, to route a received wireless communication signal to each of the multiple means for frequency translating and to control the means for adjusting to set a respective centre frequency of the multiple means for frequency translating such that said centre frequency of each of the multiple means for frequency translating is offset with respect to each other

The utility model discloses a signal control circuit, electronic equipment and a law enforcement system, the signal control circuit is arranged in the electronic equipment, and the signal control circuit comprises a communication interface used for being coupled with external equipment; the detection module is coupled with the communication interface, and the detection module is used for detecting the type of the external equipment; the control module is respectively coupled with the detection module, the communication interface and the function module of the electronic equipment, and is used for determining the function mode of the electronic equipment according to the type of the external equipment so as to control the coupling switching of the communication interface among different function modules of the electronic equipment; wherein the function mode at least comprises a shoulder microphone mode. The signal control circuit can detect the type of the external device coupled to the electronic device, and further determine the function mode of the electronic device based on the type of the external device, so as to control the coupling switching of the communication interface between different function modules of the electronic device based on the function mode.

The utility model relates to a programmable acousto-optic warning system, comprising a power supply circuit, an MCU control circuit, an audio power amplifier circuit, an RS485 communication circuit, an RGB drive circuit and a plurality of LED lamp beads, the power supply circuit is connected with the MCU control circuit, the MCU control circuit is respectively connected with the audio power amplifier circuit, the RS485 communication circuit and the RGB drive circuit, the plurality of LED lamp beads are in cascade connection, and the plurality of LED lamp beads are in cascade connection. And the output end of the RGB driving circuit is connected with the LED lamp beads. According to the programmable acousto-optic warning system provided by the utility model, the high-performance microprocessor GD32F303CCT6 is adopted, so that quick response and stable operation of the system are ensured. The power supply management design is enhanced, multiple protection mechanisms are arranged, and long-term stable operation is guaranteed. An efficient LED driving scheme is combined with an audio amplification technology, and excellent audio-visual experience is provided.

The application discloses a PLC self-networking method and system based on three-phase line frequency division multiplexing, and relates to the technical field of power communication. The method comprises the following steps: a center node simultaneously sends phase line identification signals on three phase lines by using a shared communication frequency band, and then sends networking beacons on corresponding phase lines by using three phase line communication frequency bands; a first layer site receives the phase line identification signals on the shared communication frequency band, identifies the phase lines, switches the frequency band to the corresponding communication frequency band of the phase line to which the first layer site belongs, receives the networking beacons, and initiates a network access application to the center node; in the rest of the layer sites, the last layer site in the network access simultaneously sends phase line identification signals on three phase lines by using the shared communication frequency band, and then sends networking beacons on corresponding phase lines by using three phase line communication frequency bands; the next layer site initiates a network access application to the center node according to the method of the first layer site. The application reduces the communication delay of the PLC network and improves the network throughput.

The invention discloses a PLC ad hoc network method and system based on three-phase line frequency division multiplexing, and relates to the technical field of electric power communication. The method comprises the following steps: a central node firstly uses a common communication frequency band to send phase line identification signals on three phase lines at the same time, and then uses respective communication frequency bands of the three phase lines to send networking beacons on the corresponding phase lines; the method comprises the following steps that: a first-layer station firstly receives a phase line identification signal on a shared communication frequency band, carries out phase line identification, switches the frequency band to a communication frequency band corresponding to a phase line to which the first-layer station belongs to receive a networking beacon, and initiates a network access application to a central node; in the other levels of stations, the previous layer of station accessing the network uses the common communication frequency band to send phase line identification signals on the three phase lines at the same time, and then uses the respective communication frequency bands of the three phase lines to send networking beacons on the corresponding phase lines; and the next-layer website initiates a network access application to the central node according to a method consistent with that of the first-layer website. According to the invention, the communication time delay of the PLC network is reduced, and the network throughput is improved.

Aspects of the subject disclosure may include, for example, receiving one or more blocks of data for transmission to a destination, splitting the one or more blocks of data into a plurality of data shards, and communicating the plurality of data shards to the destination, wherein the communicating comprises providing a respective data shard of the plurality of data shards to a respective physical path of a plurality of physical paths to increase data security during the communicating. Other embodiments are disclosed.

The utility model discloses a communication module and terminal equipment, and belongs to the technical field of communication. The communication module includes: a circuit board; one end of the shielding unit is grounded, and the other end of the shielding unit is electrically connected with a conductive connection point on the circuit board; the monitoring circuit is arranged on the circuit board, the first end of the monitoring circuit is electrically connected with the conductive connection point, and the second end of the monitoring circuit is connected with power supply voltage; and the processing unit is electrically connected with the third end of the monitoring circuit, receives the monitoring signal from the monitoring circuit, and determines the electrical connection state between the shielding unit and the circuit board according to the monitoring signal. The monitoring circuit is additionally arranged between the shielding unit and the processing unit, so that the processing unit can accurately and timely acquire the electrical connection state between the shielding unit and the circuit board, and the effects of monitoring abnormal conditions in real time and preventing information leakage are achieved.

A multipath receiver includes: a reorder queue configured to queue data packets received over multiple paths; and a reorder queue controller configured to reorder the data packets in the reorder queue according to a reorder criterion. The reorder queue controller is configured to allow Multi-Access Protocol Data Unit (MA PDU) Sessions based on Access Traffic Steering, Switching, and Splitting (ATSSS). The reorder queue controller is configured to choose to activate a reordering of the data packets. The reorder queue controller is configured to negotiate the activation of the reordering of the data packets with peers of an MA PDU Session based on an ATSSS use case, wherein in case reordering is activated, the data packets are queued in a reorder queue. The reorder criterion is based on a sequence numbering of the data packets of the MA PDU Session based on the ATSSS use case.

This utility model belongs to the technical field of access control card readers, specifically disclosing an access control card reader with RCC communication function, including an MCU control circuit, an RCC communication circuit, an RS485 communication circuit, a power supply circuit, an RF drive circuit, an RF antenna, a buzzer drive circuit, and a three-color backlight drive circuit. This utility model, by setting up an RCC communication circuit, enables the access control card reader to read the physical card number of a mobile phone SIM card, outputting it to the MCU via UART. The MCU then outputs the physical card number of the SIM card to the external access control controller via the RS485 communication circuit to open the door. This retains the current user habit of using mobile phones to swipe cards while avoiding security risks to access control management. Furthermore, the overall circuit design ensures stable operation of the access control card reader.

The invention provides user equipment, a control method and a processing module thereof. The user equipment includes a radio frequency front end (RFFE) module and a processing module. The radio frequency front end module comprises a first transmission path and a second transmission path. The first transmission path is a time division multiplexing (TDD) path. The second transmission path is a frequency division multiplexing (FDD) path or another TDD path. The processing module is configured to control the RFFE module. The special time slot for TDD transmission on the first transmission path comprises at least one downlink symbol, at least one uplink symbol and at least one protection symbol. During the period of the protection symbol, the first transmission path is controlled to be in a TDD receiving state for executing TDD downlink transmission or in a TDD sending state for executing TDD uplink transmission.

The utility model discloses an inverter. The inverter comprises a controller, a communication interface and a communication module, the controller is connected with the communication module through a first serial bus, the communication module is connected with the communication interface, and the communication interface is used for being connected with a communication antenna; the controller is connected with a communication interface through a second serial bus, and the communication interface is used for being connected with a communication rod. As the communication interfaces are arranged, and the communication module is arranged inside, the inverter can communicate through the communication antenna and can also communicate through the communication rod. During specific use, whether the antenna or the communication rod is installed or both the antenna and the communication rod are installed in the inverter can be selected according to actual application scenes, and multiple selectable modes can be selected flexibly.

Methods, systems, and devices for wireless communications are described. A UE may receive a set of reference signals from a network entity in accordance with a resource configuration. The set of reference signals may be received via non-full-duplex communication resources. Based on measuring the set of reference signals, the UE may transmit one or more channel state information (CSI) reports to the network entity in accordance with a first set of antenna ports and a second set of antenna ports. The first set of antenna ports may be selected by the UE based at least in part on the resource configuration, and the second set of antenna ports may be active antenna ports in full-duplex communication resources. The one or more CSI reports may include information associated with the first set of antenna ports.

The utility model discloses a high-speed internet access system based on a high-throughput tablet portable station, and relates to the field of satellite communication. The core of the system is an antenna control unit, and the antenna control unit comprises a microprocessor, a BD positioning module and an antenna attitude resolving unit. The BD positioning module provides latitude and longitude, the antenna attitude resolving unit processes sensor data, and the latitude and longitude and the sensor data are both transmitted to the microprocessor; and the microprocessor drives the motor to adjust the attitude of the antenna through a 485 bus, and realizes automatic satellite tracking in combination with the strength of satellite signals received by the beacon machine. And after communication is started, a Modem modulation signal is amplified by the BUC and is sent to a satellite re-transmission gateway station by the antenna, so that network access and networking are completed. The power management module is provided with a lithium battery to support work without mains supply, and is provided with an OLED screen, a key, a WiFi module and an external storage unit, thereby facilitating operation, monitoring and data storage. The system is highly integrated and modularized, is high in portability, can cope with a complex environment, and supports high-bandwidth satellite and ground private network communication.

The embodiment of the invention provides a voltage conversion module and a related device, the voltage conversion module comprises a first BUCK circuit and a plurality of second BUCK circuits, and a voltage regulation controller is used for providing pulse width modulation signals of different phases for the multi-phase BUCK circuits so as to realize interleaved parallel connection of the multi-phase BUCK circuits and is used for controlling the working state of the multi-phase BUCK circuits; the first BUCK circuit comprises a first power module and a first inductor, and the first power module is manufactured by adopting a voltage process lower than or equal to a first preset voltage; the second BUCK circuit comprises a second power module and a second inductor, and the second power module is manufactured by adopting a voltage process higher than or equal to a second preset voltage; the first inductor and the second inductor are connected with the output end of the voltage conversion module; and when the load is in a light load state, the first BUCK circuit is used for supplying power to the load. By adopting the method, the power supply efficiency can be improved.

A coupler relates to the technical field of industrial control. The coupler comprises a protocol bus interface, a communication processing module, a data processing module and an expansion bus interface. The protocol bus interface is used for performing data interaction with a protocol network; the communication processing module is used for sending bus data to the data processing module, or the communication processing module is used for obtaining backboard data sent by the data processing module and sending the backboard data to the protocol bus interface; the input end of an uplink unit in the data processing module is connected with the communication processing module, and the output end of the uplink unit is connected with the expansion bus interface so as to send bus data to the expansion bus interface; the input end of the downlink unit is connected with the expansion bus interface, and the output end of the downlink unit is connected with the communication processing module so as to obtain backboard data sent by the expansion bus interface; and the expansion bus interface is used for connecting at least one preset expansion module to send the bus data to each expansion module, so that the coupler with high interaction efficiency is provided.

The invention discloses a satellite network data transmission method and system based on beam hopping and frequency multiplexing, and relates to the technical field of satellite network high-concurrency data transmission, the method comprises the following steps: constructing a user terminal access avoidance mechanism and an asynchronous processing mechanism according to a corresponding relation between a low-orbit satellite and a user terminal; determining a user terminal accessed by the low-orbit satellite; the method comprises the following steps: grouping user terminals accessed by a low earth orbit satellite through a K-means algorithm to obtain a user group; and dividing a communication frequency band of the low-orbit satellite into a plurality of communication sub-frequency bands, and issuing data resources to the user group by the sub-frequency bands through a beam hopping method. The access efficiency is effectively improved by constructing an avoidance mechanism and an asynchronous processing mechanism, the resource allocation of the low-orbit satellite can be effectively optimized through dynamic grouping, the spectrum resource utilization rate of the low-orbit satellite is effectively improved by multiplexing a plurality of communication sub-bands, and concurrent access of multiple user terminals is supported.

The utility model discloses a line concentration adapter and a data collection device, and relates to the field of data collection, the line concentration adapter comprises an input communication unit, N resistors, a control module and a first output communication unit, and after the data is transmitted to the control module, the control module transmits the data to the first output communication unit, so that the first output communication unit outputs the data to the data acquisition device. Therefore, the data of the corresponding inverters are received by using the input ends of the input communication unit, and then the data are output to the data acquisition device from the first output communication unit after passing through the control module, so that the data acquisition device can receive the data, and the data loss of multiple inverters caused by the fault of one inverter is avoided; and the accuracy and integrity of data collection are improved.

The present document relates to a method for transmitting a device-to-reader (D2R) link signal of an ambient IoT device, a method for controlling same, and devices therefor. To this end, the method for transmitting a D2R link signal comprises: receiving, from a reader, a 0-th message including frequency information for transmitting the D2R link signal; performing line coding on the D2R link signal on the basis of the frequency information; and transmitting, to the reader, the D2R link signal to which a frequency divisional multiple access (FDMA) scheme has been applied by the line coding.