198results about "Frequency-division multiplex details" patented technology

Apparatus, methods, and computer-readable media for facilitating multiplexing of uplink signals at a repeater are disclosed herein. An example, a method for wireless communication at a repeater, includes obtaining a first uplink signal associated with a UE. The example method also includes providing a first uplink communication including the first uplink signal multiplexed with a second uplink signal, the second uplink signal being associated with an MT component of the repeater. Additionally, the example method includes obtaining a multiplexing configuration based in part on at least one of a phase distortion and a power mismatch associated with the first uplink communication. The example method also includes providing a second uplink communication based in part on the multiplexing configuration, the second uplink communication including a third uplink signal multiplexed with a fourth uplink signal.

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.

An information indication method, an information indication apparatus and a communication device are provided. The method includes: obtaining first quality indication information according to first measurement metrics; reporting the first quality indication information; wherein, the first quality indication information includes at least one of following: indication information of carrier phase continuity, indication information of half cycle ambiguity, indication information of an error indication value, indication information of an error resolution, indication information of a carrier signal quality, indication information of a quantity of error sampling points, and indication information of a measurement confidence level.

The utility model discloses an electric energy meter data acquisition unit, which relates to the field of data acquisition, and is provided with an equipment interface, a communication interface, a communication module, an MCU (Microprogrammed Control Unit), an antenna and a first DCDC (Direct Current to Direct Current) module, the antenna is arranged near the electric energy meter through the coaxial line, the antenna is arranged near the electric energy meter through the coaxial line, the first DCDC module reduces the first voltage into the second voltage and then supplies power to the communication module, the equipment interface transmits data to the MCU through the communication interface, and after the communication module is powered on and the MCU receives the data, the MCU communicates with the electric energy meter through the communication module and the antenna. The influence of the MCU in the electric energy meter data collector on the antenna is greatly reduced, an iron plate does not need to be arranged like a sucker antenna, the appearance is low, and the possibility of being damaged is reduced.

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.

According to various embodiments of the present disclosure, a method performed by a first device is provided, the method comprising the steps of: transmitting, to a second device, information of a frequency shift keying (FSK) set including multiple frequency shift (FS) values from among a plurality of FS values, the multiple FS values being all or some of specific FS values supported by the second device; and receiving, from the second device, a modulation signal to which the FSK set is applied.

The utility model discloses an underground communication circuit and an underground communication system, and relates to the technical field of communication. The circuit comprises a first switch unit, a second switch unit, a third switch unit and a resistor unit, wherein a first end of the first switch unit is used for being connected to a first communication end through a bus and is respectively connected with a first end of the second switch unit and a first end of the resistor unit, and a second end of the first switch unit is used for being respectively connected with a data sending end and a data receiving end of the second communication end and is connected with a second end of the second switch unit; the control end of the first switch unit is connected with a preset power supply, the control end of the second switch unit is connected with the second end of the resistor unit and the first end of the third switch unit, the second end of the third switch unit is grounded, and the control end of the third switch unit is connected with the preset power supply. According to the circuit, simple and convenient underground communication can be realized, so that underground reliable operation of underground operation equipment is ensured.

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 a signal transmission system, and relates to the technical field of signal transmission. The signal transmission system comprises a signal generation branch, a resistor branch, a controller and a signal receiving branch. The signal generation branch is connected with the input voltage and is configured to generate an optical signal based on the input voltage, the signal generation branch comprises an electro-optical conversion unit, and the optical signal is output by the electro-optical conversion unit and is transmitted through an analog optical fiber. The resistance branch is respectively connected with the electro-optical conversion unit and the controller, the resistance branch is configured to be a resistor with an adjustable resistance value so as to adjust the current flowing through the electro-optical conversion unit, and the resistance value of the resistance branch is determined by the controller. The signal receiving branch is configured to receive an optical signal from the analog optical fiber and output a first voltage corresponding to the optical signal. In this way, the method can be suitable for transmission of different signals and is high in practicability.

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.

The invention relates to a communication module and electronic equipment, and the communication module comprises a Beidou receiving module, a radio frequency front-end device, a Beidou transceiver and a radio frequency transceiver, the Beidou receiving module is connected with a first antenna and the Beidou transceiver, and supports the receiving processing of a first frequency band signal of a Beidou short message; the radio frequency front-end device is connected with the second antenna, the Beidou transceiver and the radio frequency transceiver, supports receiving processing of a second frequency band signal of a Beidou short message and supports receiving processing of a third frequency band signal, and the second frequency band signal and the third frequency band signal are respectively within a preset range; and the third frequency band signal and the second frequency band signal are different in system. On the basis of multiplexing of the second antenna and the radio frequency front-end device, the communication module can simplify the architecture of the communication module and reduce the product cost and the occupied area on the basis of realizing receiving and processing of three different frequency band signals of the Beidou system and the radio frequency system, and is beneficial to the miniaturization design of the product at the same time; and the application of the communication module in a multi-system scene is facilitated.

A method of downlink channel state information (DL CSI) measurement and reporting is proposed in FR1 frequency division duplex (FDD) systems. CSI reference signal (CSI-RS) is directed towards dominant spatial domain (SD, beam) and frequency domain (FD, delay) components in the propagation environment. By partial channel reciprocity, angles and delays in the DL channel can be obtained by UL channel measurement. UE only needs to measure and feedback the DL CSI corresponding to the dominant angles and delays. BS obtains the precoder in the antenna-frequency domain using the CSI feedback in the beam-delay domain. BS uses the precoder for transmission over Physical downlink shared channel (PDSCH). In one embodiment, UE reconstructs the DL channel on a multitude of delays using the DL channel estimated on a few beamformed CSI-RS and delay tap indices signaled from the network.

A method for operating a user equipment (UE) comprises receiving information about a measurement region that is associated with P ports, where P≥10 and based on the information, identifying the measurement region, measuring the P ports associated with the measurement region, and determining a channel state information (CSI) report based on the measurement, and transmitting the CSI report. The information about the measurement region includes at least two of (i) a set of physical resource blocks (PRBs), (ii) a set of time slots, and (iii) a set of CSI-reference signal (RS) resources. P×Of=Q, where Q is a number of precoding dimensions, Of=a number of precoding dimensions per port associated with the CSI report, and Of is fixed, configured, or reported by the UE via UE capability reporting.

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 invention discloses an integrated parallel transmission method and device for a photoelectric time-frequency signal, and the method comprises the steps: generating a broadband spread spectrum modulation intermediate-frequency carrier signal through a time-frequency modem, and carrying out the phase modulation through an up-converter and an electro-optical modulator, and obtaining an A-station ultra-stable laser and a B-station laser; a photoelectric detector obtains a downlink microwave modulation signal through coherent detection, and the downlink microwave modulation signal passes through a down converter and a time-frequency modem to obtain frequency deviation of a station A and a station B; the A station and the B station generate optical heterodyne signals respectively, optical phase locking control is completed through an acousto-optic modulator, and the frequency of the laser of the B station is adjusted through feedback, so that the laser of the B station is locked to the ultra-stable laser of the A station. According to the integrated parallel transmission method for the photoelectric time-frequency signals, three kinds of time-frequency signals are transmitted in parallel through a single optical carrier in a frequency division multiplexing mode of a time-frequency signal frequency spectrum layer, dispersion of multiple transmission channels is avoided, and therefore the time domain coherence characteristic between the time-frequency signals is better guaranteed.

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.

A method, performed by a user equipment (UE), of providing In-Device Coexistence (IDC) information is provided. The method includes transmitting, to a base station (BS), UE capability information including IDC information reporting capability information; receiving, from the BS, configuration information about IDC information reporting; detecting an occurrence of an IDC problem; and transmitting, to the BS, UE Assistance information including information of a frequency affected by the IDC problem, based on the configuration information, wherein the information of the frequency affected by the IDC problem is indicated in an IDC Assistance field.

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 photoelectric detector and a photoelectric communication system. The photoelectric detector comprises a substrate and a photoelectric conversion structure, the photoelectric conversion structure is arranged on one side of the substrate in a first direction, and the first direction is the thickness direction of the substrate; the photoelectric conversion structure comprises a plurality of photon absorption layers, the photon absorption layers are arranged in the second direction, the adjacent photon absorption layers make contact with each other, and the second direction is perpendicular to the first direction. When the above scheme is adopted, the plurality of photon absorption layers of the photoelectric conversion structure are arranged along the direction perpendicular to the thickness direction of the substrate, that is, the plurality of photon absorption layers are arranged along the width or length direction of the substrate, and the active absorption region of the photoelectric detector has a large photosensitive surface, so that the coupling efficiency of incident light can be improved; the responsivity of the photoelectric detector can be improved, the bandwidth of the photoelectric detector can be improved, and the requirements of an ultra-wideband communication system can be met.

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.