404results about "Frequency-division multiplex details" patented technology

The invention provides a frequency division multiplexing multi-beam anti-interference method for a shaped antenna, and the method comprises the steps: obtaining the signal data of each frequency band according to the multi-beam spatial domain data received by the shaped antenna and a filter of a frequency domain corresponding to the working frequency band of each beam; performing high-resolution spatial spectrum estimation on the signal data of each frequency band by adopting a MUSIC algorithm to obtain an incoming wave space direction of an interference signal; according to the incoming wave space direction of the interference signal, on the basis of a preset multi-beam zeroing anti-interference strategy, self-adaptive weights of all same-frequency beams are obtained in a spatial domain and frequency domain two-dimensional combined processing mode; the adaptive weights of the same-frequency beams are combined, a comprehensive directional diagram is obtained, and a multi-beam interference zeroing result is obtained, according to the method, the whole airspace is covered with the beams of different frequency points, and space-frequency combined suppression of airspace complex interference is achieved.

An MIPI serializer / deserializer supporting photoelectric dual modes and an MIPI transmission system comprise a high-speed processing circuit, a low-speed processing circuit, forward and reverse packaging circuits, forward and reverse unpackaging circuits and a photoelectric configuration module which respectively comprise a sending unit and a receiving unit, and the sending unit and the receiving unit comprise an electrical path and / or an optical path. High-speed signals and low-speed signals in an MIPI mode are supported to be serially or deserialized together, the data transmission interface comprises an electric channel and an optical channel, data can be independently supported to be transmitted at the same time through any one or two of the electric channel and the optical channel, and therefore long-distance scenes and short-distance scenes can be supported at the same time.

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.

Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and / or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and / or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

The invention discloses an imitated radio frequency division multiplexing channel estimation and symbol detection method and system based on deep learning, and the method comprises the steps: S1, modulating a transmission symbol in a communication process through employing an imitated radio frequency division multiplexing technology, transmitting the modulated transmission symbol through a channel, and obtaining an imitated radio frequency division multiplexing receiving signal at a receiving end; s2, constructing a deep neural network model, taking an I path and a Q path in the simulated radio frequency division multiplexing receiving signal as the input of a neural network, taking a transmission symbol as the expected output of the neural network, and training the neural network, so that the neural network has the prediction capability on the transmission data symbol; and S3, after training of the deep neural network model is completed, inputting the simulated radio frequency division multiplexing signals received in real time in the communication process into the trained neural network model to obtain a predicted value of a transmission data symbol.

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.

A method for receiving a downlink channel by a terminal in a wireless communication system includes: receiving, from a base station, first information related to a guard band in a first resource region located in one carrier; receiving, from the base station, second information related to multiple resource sets, each of which is identified by the guard band in the first resource region on the basis of the first information; and receiving, from the base station, a downlink channel on a resource indicated by the second information to be available for reception of the downlink channel.

Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and / or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

Systems, methods, and apparatuses for providing dynamic, prioritized spectrum utilization management. The system includes at least one monitoring sensor, at least one data analysis engine, at least one application, a semantic engine, a programmable rules and policy editor, a tip and cue server, and / or a control panel. The tip and cue server is operable utilize the environmental awareness from the data processed by the at least one data analysis engine in combination with additional information to create actionable data.

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 invention relates to a system and a method for verifying a current receiving module with an SPC in a chip, and the system comprises the steps: constructing a new verification system composed of an SPC controller, a current transmitting assembly, a to-be-tested design and two buf1 assemblies, and controlling a signal path between the SPC controller and a microcontroller, and a signal path between the current transmitting assembly and the microcontroller through the two buf1 assemblies, thereby achieving the verification of the current receiving module with the SPC in the chip. In the EDA verification stage, the current receiving module with the SPC function can be verified, so that the verification of the current receiving module with the SPC function does not need to be realized at a hardware level. Meanwhile, the verification technology can be well compatible with other existing whole chip verification platforms and a traditional tent receiving module verification platform, has good flexibility and reusability, and can greatly improve the verification efficiency.

The invention discloses a high-performance dynamic routing circuit for improving S parameter measurement and a multi-port expansion box, and relates to an S parameter test and port expansion technology. The routing circuit applied to the transmitting path comprises four output ends, six transmitting branch port input ends, a transmitting total port input end, four first-stage equalization amplifiers, two first-stage one-to-two switches, two second-stage equalization amplifiers, four first-stage one-to-three switches, a first-stage one-to-four switch and a third-stage equalization amplifier. The internal paths of the circuit are symmetrical, and the transmission path length of signal routing gating is minimized through the arrangement of a total port and branch ports, so that high performance is ensured. The multi-port expansion box comprises a routing circuit applied to a transmitting path, a routing circuit applied to a reference / test receiving path, a transmitting / reference receiving / test receiving standard configuration routing amplification unit, a bi-directional coupler matrix and the like. Port expansion can be flexibly configured and high performance can be ensured.

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.

Methods, systems, and devices for wireless communication are described. A first wireless communication device may set parameter(s) corresponding to column(s) of a reconfigurable intelligent surface (RIS) based on a periodic coding sequence. Based on the parameter(s), the first wireless communication device may transmit a first signal to a second wireless communication device in a first direction using a first harmonic frequency, and may transmit a second signal to a third wireless communication device in a second direction using a second harmonic frequency. The second wireless communication device may decode the first signal based on the periodic coding sequence and the first harmonic frequency, and the third wireless communication device may decode the second signal based on periodic coding sequence and the second harmonic frequency. The first wireless communication device may similarly set second parameter(s) of the RIS based on a second periodic coding sequence.

Various embodiments relate to a next generation wireless communication system for supporting a higher data transfer rate and the like beyond 4th generation (4G) wireless communication systems. Provided according to various embodiments are a method for transmitting / receiving a signal in a wireless communication system and a device supporting same, and various other embodiments may also be provided.

The utility model discloses a partial discharge on-line monitoring system, comprising a wireless partial discharge monitoring module which is arranged in cabinet type power equipment and is used for monitoring partial discharge in real time, and a signal transmission end of the wireless partial discharge monitoring module is connected with a signal input end of a wireless concentrator. The signal transmission end of the wireless concentrator is connected with the signal input end of the server, and the signal transmission end of the server is connected with an alarm and a mobile device. The server is connected with an alarm, alarms in real time, and realizes remote monitoring through mobile equipment; the device supports on-line monitoring and multi-point monitoring, does not need power failure, can quickly position a discharge point, and ensures safe and stable operation of power equipment.

Duplexer (1), comprising: an antenna connection (11), a transmission connection (12), a receiving connection (13), a transmission filter connected between the antenna connection (11) and the transmission connection (12), a receiving filter connected between the antenna terminal (11) and the receiving terminal (13), and an inductance component (4) connected at one end to the antenna terminal (11) and connected at another end to a ground potential, wherein the transmission filter comprises an elastic wave filter having a ladder circuit configuration, the elastic wave filter including a piezoelectric substrate (5), a series arm resonator (51, 52, 53, 54) and a plurality of shunt arm resonators (P1 - P4), the series arm resonator (51, 52, 53, 54) comprising an elastic wave resonator formed on the piezoelectric substrate and the shunt arm resonators (P1 - P4) each comprising an elastic wave resonator formed on the piezoelectric substrate (5), and wherein one of the shunt arm resonators provided in a shunt arm arranged closest to the transmission terminal in the ladder circuit configuration comprises a transmission-side shunt arm resonator (P1), and the transmission-side shunt arm resonator (P1) is arranged closer to one side of the piezoelectric substrate (5) than a rest of the shunt arm resonators (P2 - P4), the one side (5a) extending in a direction parallel to a propagation direction of an elastic wave in the transmission-side shunt arm resonator (P1), characterized in that the inductance component (4) is arranged outside one side of the piezoelectric substrate such that the electromagnetic coupling between the inductance component (4) and the transmitting-side shunt arm resonator (P1) with its own ground connection is stronger than the electromagnetic coupling between the inductance component (4) and the rest of the shunt arm resonators (P2 - P4).

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.

An IFoF scheme optical transmission system according to the present disclosure technology includes a transmission-side digital signal processor including a system number compressor; and a parameter updater, the system number compressor compressing n digital data streams into m digital data streams, m being smaller than n, and the parameter updater updating a parameter used by the system number compressor by referring to a value of an evaluation function using a signal string handled by the transmission-side digital signal processor as an argument.

An antenna module includes radio frequency circuits and a front end circuit that transfers a signal between a BBIC and the radio frequency circuits. The front end circuit includes switches that are connected to the radio frequency circuits, switches that are connected to the BBIC, and branching elements. The front end circuit is configured to, by switching of each of the switches, switch between a first state in which a signal is transferred between one of the radio frequency circuit and the radio frequency circuit and the BBIC and a second state in which a signal is transferred between both the radio frequency circuits and the BBIC.

According to an embodiment, there is provided a wireless communication system that transmits data from a transmission device to a reception device by using a plurality of frequency channels, in which the transmission device includes a transfer control unit that performs transfer control to transfer a part of traffic of one or more frequency channels in which a BER reaches a predetermined value to one or more other frequency channels in which a BER does not reach the predetermined value, and a reduction control unit that performs, for traffic remaining after the transfer control unit transfers a part of traffic of the frequency channels in which a BER reaches the predetermined value, reduction control to reduce at least one of a multi-level number of multi-level modulation or a coding rate.

The utility model relates to the technical field of communication, and particularly discloses a multilink aggregation communication system, which comprises a power management module, a communication USB (universal serial bus) interface switching circuit, a network connector circuit, an Ethernet switch circuit, an SIM (subscriber identity module) card interface circuit, a wireless aggregation access circuit and a main control circuit. The SIM card interface circuit and the network connector circuit are electrically connected with the wireless aggregation access circuit and the Ethernet switch circuit respectively, and the power management module, the communication USB interface switching circuit, the Ethernet switch circuit and the wireless aggregation access circuit are electrically connected with the main control circuit. According to the utility model, multi-link aggregation, a bidirectional tunnel link, a multi-card adaptive network and double-video coding transmission are integrated, and all network links are integrated into a high-broadband-value channel, so that a stable 100M bandwidth is provided for users to carry out audio and video stream transmission, file transceiving and internet access; and stable transmission of video images in a severe environment with unstable wireless networks is ensured.

The utility model discloses a communication circuit and a communication chip, the communication circuit is respectively connected with a slave machine and a whole vehicle signal end, and the communication circuit comprises a first branch circuit and a second branch circuit provided with a switch module and an OC module; the first branch is respectively connected with a whole vehicle signal end and a receiving end of the slave, the switch module is respectively connected with a sending end of the slave, and the OC module is respectively connected with the switch module and the whole vehicle signal end. According to the utility model, the signal transmission of the whole vehicle to the slave is realized through the first branch, the switch module is switched on and switched off according to the signal of the whole vehicle, and the OC module pulls down the voltage or does not output the signal according to the switch-on condition of the switch module, so that error frame transmission in communication is avoided, an LIN chip does not need to be used, and the cost is reduced. And communication between the on-vehicle slave equipment and the whole vehicle can be realized only through the switch module and the OC module, so that the cost is further reduced.

A wireless device initiates a beam failure recovery procedure based on a beam failure of at least one beam of a cell. A radio link failure is determined based on a failure of the beam failure recovery procedure. A radio link failure report is transmitted. The radio link failure report comprises: a first field indicating that the failure of the beam failure recovery procedure is a cause of the radio link failure; and a second field indicating a random access resource for the beam failure recovery procedure.

A method for wireless communication by a user equipment (UE) includes receiving from a base station a signaling indicating that resources in a physical time domain are assigned to a set of continuous symbols in a virtual domain. Each symbol in the set of continuous symbols in the virtual domain can be associated with a respective OFDM symbol in a respective one of a plurality of sets of one or more continuous orthogonal frequency division multiplexing (OFDM) symbols in the physical time domain. Each OFDM symbol set can be associated with a respective time slot in a plurality of time slots in the physical time domain. Multiple OFDM symbol sets can carry a single physical channel payload. The method also includes mapping physical time domain resources to a plurality of OFDM symbol sets based on assigning physical time domain resources to a set of continuous symbols in the virtual domain. The method also includes receiving or sending a plurality of OFDM symbol sets on physical time domain resources based on mapping.

The utility model relates to a signal switching substrate and a signal switching device. The signal transfer substrate comprises a substrate body, and a signal input and output loop module, a signal line interface module and a signal series loop module which are arranged on the substrate body, wherein the signal line interface module is connected with the signal input and output loop module and comprises a plurality of wiring units; the signal series connection loop module comprises a plurality of series connection wiring units in one-to-one correspondence with the plurality of wiring units, and a preset number of series connection wiring units in the plurality of series connection wiring units are sequentially connected to form a series connection structure. The signal switching substrate can improve the wiring efficiency and reduce the wiring difficulty.

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.