02nd week of 2021 patent applcation highlights part 67 |
Patent application number | Title | Published |
20210013886 | FPGA WITH RECONFIGURABLE THRESHOLD LOGIC GATES FOR IMPROVED PERFORMANCE, POWER, AND AREA - A field-programmable gate array (FPGA) with reconfigurable threshold logic gates for improved performance, power, and area (PPA) is provided. This disclosure describes a new architecture for an FPGA, referred to as threshold logic FPGA (TLFPGA), that integrates a conventional lookup table (LUT) with a complementary metal-oxide-semiconductor (CMOS) digital implementation of a binary perceptron, referred to as a threshold logic cell (TLC). The TLFPGA design described herein, combined with a new logic mapping algorithm that exploits the presence of both conventional LUTs and TLCs within the basic logic element (BLE) block, achieves significant improvements in all the metrics of PPA. The TLCs of embodiments described herein are capable of implementing a complex threshold function, which if implemented using conventional gates would require several levels of logic gates. The TLCs only require seven static random-access memory (SRAM) cells and are significantly faster than the conventional LUTs. | 2021-01-14 |
20210013887 | NETWORK-ON-CHIP (NOC) WITH FLEXIBLE DATA WIDTH - Techniques described herein may relate to providing a programmable interconnect network (e.g., a programmable network-on-chip (NOC)). A method may include determining a transmission parameter, bonding one or more channels of an interconnect network based at least in part on the transmission parameter, and power-gating any unused channels after the bonding. | 2021-01-14 |
20210013888 | PHASE LOCKED CIRCUIT, METHOD OF OPERATING THE SAME, AND TRANSCEIVER - A phase locked circuit includes an oscillator configured to generate an output clock signal, a first phase detector configured to detect a phase difference between an input clock signal and a feedback clock signal based on the output clock signal, a second phase detector having a wider phase locking range than that of the first phase detector and configured to detect the phase difference between the input clock signal and the feedback clock signal, and a charge pump controller configured to control an output current of a charge pump included in the second phase detector based on the phase difference detected by the first phase detector. When the phase difference between the input clock signal and the feedback clock signal is within the phase locking range of the first phase detector, the oscillator and the first phase detector are connected to each other. | 2021-01-14 |
20210013889 | SYSTEM AND METHOD FOR CORRECTING PHASE NOISE IN A COMMUNICATION SYSTEM - A system, circuit and method for providing a controlled oscillator frequency with reduced phase noise for use in a communication system. In one embodiment, the circuit includes a delay line coupled to an output of a voltage controlled oscillator (“VCO”). The circuit also includes a combiner having a first input coupled to an output of the delay line, and a second input coupled to the output of the VCO. An output of the combiner is coupled to a control input of the VCO. | 2021-01-14 |
20210013890 | FREQUENCY SYNTHESIS DEVICE WITH FEEDBACK LOOP - A frequency synthesis device includes a servo circuit for controlling an output frequency to an input reference frequency. The circuit includes a first phase accumulator clocked by the reference frequency, a phase comparison block, a loop filter and an oscillator. It further includes a feedback loop connecting the output to the comparison block, having a second phase accumulator clocked by the output frequency. The comparison block includes T phase comparators with logic gates receiving respectively T first logic signals from the servo circuit on T first inputs and T second logic signals from the feedback loop on T second inputs, the T first and second signals having logic levels that continuously depend on values provided by the first and second accumulators according to at least one multi-phase correspondence matrix. | 2021-01-14 |
20210013891 | METHOD AND APPARATUS FOR IMPROVED DPLL SETTLING AND TEMPERATURE COMPENSATION ALGORITHMS USING SECOND OPEN LOOP OSCILLATOR TUNING FIELD - A digital phase-locked loop has a digitally controlled oscillator with a first coarse tuning field for coarse tuning of the oscillator frequency, a second coarse tuning field for tuning of the oscillator frequency at finer intervals than the first coarse tuning field, and a fine tuning field for tuning the oscillator to an output frequency at finer intervals than the second coarse tuning field. The second coarse tuning field provides open loop tuning and is linear and connected parallel to the first coarse tuning field. The second coarse tuning field provides wide field temperature compensation and frequency error determination at start up based on an interpolated frequency value obtained prior to start up. Faster settling is provided with less complex algorithms. | 2021-01-14 |
20210013892 | Frequency Multiplier, Digital Phase-Locked Loop Circuit, and Frequency Multiplication Method - A frequency multiplier, a digital phase-locked loop circuit, and a frequency multiplication method, where the frequency multiplier includes a clock controller configured to: receive an output signal from a time-to-digital converter in the digital phase-locked loop circuit, and generate a control signal based on a duty cycle error of the output signal, a clock calibration circuit configured to: receive a reference clock signal, calibrate a duty cycle of the reference clock signal based on the control signal, and output a calibrated clock signal, and a clock frequency multiplier configured to: receive the calibrated clock signal, multiply a frequency of the calibrated clock signal, and output a frequency multiplied signal to the time-to-digital converter. | 2021-01-14 |
20210013893 | METHOD FOR MANAGING THE STARTUP OF A PHASE-LOCKED LOOP AND CORRESPONDING INTEGRATED CIRCUIT - The operation of the phase-locked loop includes a startup phase where a reference signal having a duty cycle of 50% is applied to a phase comparator of the loop. A first divider of an output signal of the voltage-controlled oscillator of the loop is reset at each first type signal edge of the reference signal. The phase comparator receives the reference signal and a feedback signal from the first divider and generates a control pulse at each second type signal edge of the reference signal that causes a control voltage of the oscillator to increase. | 2021-01-14 |
20210013894 | PHASE DETECTION CIRCUIT, AND CLOCK GENERATION CIRCUIT AND SEMICONDUCTOR APPARATUS INCLUDING THE PHASE DETECTION CIRCUIT - A phase detection circuit is configured to receive an input clock signal and a reference clock signal. The phase detection circuit is configured to generate a divided clock signal from the reference clock signal. The phase detection circuit is configured to generate a phase detection signal after comparing the phase of the input clock signal with the divided clock signal. | 2021-01-14 |
20210013895 | KICKBACK COMPENSATION FOR A CAPACITIVELY DRIVEN COMPARATOR - An analog-to-digital converter (ADC) includes a comparator, a voltage reference circuit, a first capacitive digital-to-analog converter (CDAC), and a second CDAC. The first CDAC includes a plurality of capacitors. Each of the capacitors of the first CDAC includes a top plate coupled to a first input of the comparator, and a bottom plate switchably coupled to an output of the voltage reference circuit. The second CDAC includes a plurality of capacitors. Each of the capacitors of the second CDAC includes a top plate coupled to a second input of the comparator, and a bottom plate switchably coupled to a ground reference. | 2021-01-14 |
20210013896 | METHOD FOR CALIBRATING CAPACITOR VOLTAGE COEFFICIENT OF HIGH-PRECISION SUCCESSIVE APPROXIMATION ANALOG-TO-DIGITAL CONVERTER - The present disclosure relates to the field of semiconductor integrated circuits, and to a method for calibrating a capacitor voltage coefficient of a high-precision successive approximation analog-to-digital converter (SAR ADC). The method includes: calibrating a voltage coefficient; obtaining a sampled charged charge according to a capacitance model with the voltage coefficient; according to an INL value obtained by testing, first verifying whether a maximum value of INL occurs in the place shown in Equation 3, then obtaining two very close second-order capacitor voltage coefficients according to Equation 4, and taking an average value thereof as a second-order capacitor voltage coefficient; and then calibrating the second-order capacitor voltage coefficient in a digital domain. In the present disclosure, a capacitor voltage coefficient can be extracted based on INL and the capacitor voltage coefficient is calibrated at a digital backend without adding an analog calibration circuit, thereby improving conversion accuracy of the ADC. | 2021-01-14 |
20210013897 | APPARATUS AND METHOD FOR MEASURING FREQUENCY OF SIGNAL - Provided are an apparatus and a method for measuring a frequency of a broadband signal by using low-speed ADCs having sub-Nyquist sampling rates. A plurality of channels each including a low-speed ADC having a sub-Nyquist sampling rate (e.g. sampling frequency from several MHz to hundreds of MHz) are provided, and the frequency of an input signal corresponding to a combination of frequencies calculated through the respective channels is estimated. Therefore, as the number of channels increases, the range of measurable frequencies may be extended. | 2021-01-14 |
20210013898 | EFFICIENT ALL-DIGITAL DOMAIN CALIBRATION ARCHITECTURE FOR A SUCCESSIVE APPROXIMATION REGISTER ANALOG-TO-DIGITAL CONVERTER - A method is described that is performed by a calibration system. The method includes determining a set of perturbation values for configuring an analog-to-digital converter of the calibration system; generating a set of digital test values for determining the accuracy of the analog-to-digital converter; and applying the set of perturbation values to the set of digital test values to generate a set of modified test values, wherein the set of perturbation values are digital values that are applied to the set of digital test values in the digital domain. | 2021-01-14 |
20210013899 | DIGITAL-TO-ANALOG CONVERTER, CONVERSION CIRCUIT AND DISPLAY DEVICE - Embodiments of the present disclosure provide a digital-to-analog converter, a conversion circuit and a display device. An M-bit digital-to-analog converter includes a higher M−N-bit digital-to-analog conversion circuit, a voltage conversion circuit, an output circuit. The higher M−N-bit digital-to-analog conversion circuit includes: a higher M−N-bit voltage division generation circuit, a first voltage selection circuit. The first voltage selection circuit selects a first voltage from the higher M−N-bit voltage division generation circuit based on a higher M−N-bit digital signal, to be output from a first voltage end. The voltage conversion circuit charges a capacitor circuit under the control of a first switch circuit and a second switch circuit, and discharges a second voltage to a second voltage end through the capacitor circuit. The output circuit controls the first voltage and the second voltage based on a lower N-bit digital signal, generates an analog voltage signal corresponding to an M-bit digital signal. | 2021-01-14 |
20210013900 | REAL-TIME HISTORY-BASED BYTE STREAM COMPRESSION - Described embodiments provide systems and methods for stream-based compression. An encoder of a first device receives an input stream of bytes including a first byte preceded by one or more second bytes. The encoder may determine to identify a prefix code for the first byte. The encoder may select a prefix code table using the one or more second bytes. The encoder may identify, from the selected prefix code table, the prefix code of the first byte. The encoder may generate an output stream of bytes by replacing the first byte in the input stream with the prefix code of the first byte. The encoder may transmit the output stream from the encoder of the first device to a decoder of a second device. The output stream may have a fewer number of bits than the input stream. | 2021-01-14 |
20210013901 | PROCESSING METHOD AND DEVICE FOR QUASI-CYCLIC LOW DENSITY PARITY CHECK CODING - Provided are a processing method and device for quasi-cyclic low density parity check (LDPC) coding. The processing method for LDPC coding includes: determining, according to a data feature of an information bit sequence to be encoded, a processing strategy for the quasi-cyclic LDPC coding according to a data feature of an information bit sequence to be encoded; and performing, according to the processing strategy and based on a base matrix and a lifting size, the quasi-cyclic LDPC coding and rate matching output on the information bit sequence according to the processing strategy, a base matrix and a lifting value. This technical solution is able to improve adaptability and flexibility of the quasi-cyclic LDPC coding. | 2021-01-14 |
20210013902 | DEVICE AND METHOD TO TRANSMIT AND RECEIVE SIGNAL IN COMMUNICATION SYSTEM - The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system, such as a long-term evolution (LTE). A method of a receiving device in a communication system is provided. The method includes receiving a signal, and decoding the received signal based on a polar decoding scheme which is based on a successive cancellation (SC) scheme to estimate an information sequence, wherein, in the polar decoding scheme, a second number of parity bits among a first number of parity bits of an outer code included in an input bit sequence to a polar encoder are used in an error detection operation, and a third number of parity bits among the first number of parity bits are used in an error correction operation. | 2021-01-14 |
20210013903 | TECHNIQUES TO IMPROVE ERROR CORRECTION USING AN XOR REBUILD SCHEME OF MULTIPLE CODEWORDS AND PREVENT MISCORRECTION FROM READ REFERENCE VOLTAGE SHIFTS - Examples include techniques to improve error correction using an exclusive OR (XOR) rebuild scheme that includes two uncorrectable codewords. Examples include generation of soft XOR codewords using bits of correctable codewords to rebuild a codeword read from a memory that has uncorrectable errors and adjust bit reliability information to generate a new codeword having correctable errors. Examples also include techniques to prevent mis-correction due to read reference voltage shifts using non-linear transformations. | 2021-01-14 |
20210013904 | INTERLEAVING AND MAPPING METHOD AND DEINTERLEAVING AND DEMAPPING METHOD FOR LDPC CODEWORD - An interleaving and mapping method and a deinterleaving and demapping method for an LDPC codeword are provided. The interleaving and mapping method comprises: performing first bit interleaving on a parity bits part of the LDPC codeword to obtain interleaved parity bits; splicing an information bit part of the codeword and the interleaved parity bits into a codeword after the first bit interleaving; dividing the codeword after the first bit interleaving into multiple consecutive bit subblocks in a predetermined length, and changing the order of the bit subblocks according to a corresponding permutation order (bit-swapping pattern) to form a codeword after second bit interleaving; dividing the codeword after the second bit interleaving into two parts, and writing the two parts into storage space in a column order respectively and reading the two parts from the storage space in a row order respectively to obtain a codeword after third bit interleaving. | 2021-01-14 |
20210013905 | MEMORY SYSTEM WITH LOW-COMPLEXITY DECODING AND METHOD OF OPERATING SUCH MEMORY SYSTEM - Memory controllers, decoders and methods to selectively perform bit-flipping (BF) decoding and min-sum (MS) decoding on codewords of an irregular low-density parity-check (LDPC) code. Bit-flipping (BF) decoding is executed with respect to variable nodes having relatively high column weights. MS decoding is executed with respect to variable nodes having relatively low column weights. A column-weight threshold is used to group the variable nodes into the higher and lower column weight groups. The two decoding techniques exchange results during the overall decoding process. | 2021-01-14 |
20210013906 | MEMORY APPARATUS AND DATA ACCESSING METHOD THEREOF - The invention provides a data accessing method for a memory apparatus. The data accessing method includes: performing a reading operation on the memory apparatus based on an address information to obtain a codeword and an indicator, where the indicator corresponds to the codeword; enabling a first error correction code (ECC) operation or second ECC operation to be operated on the codeword for generating an error corrected data, wherein, the first ECC operation corrects less bits than the second ECC operation. | 2021-01-14 |
20210013907 | CLIENT WIRELESS DEVICE THAT MERGES FUNCTIONS OF UPPER AND LOWER MAC LAYERS TO SUPPORT WLAN MODULES OPERATING SIMULTANEOUSLY IN DIFFERENT WIRELESS BANDS - A simultaneous client wireless device includes wireless modules configured to perform communication functions of a PHY (physical) layer for wireless radios operable in different bands. The simultaneous client wireless device also includes a communication module configured as an intermediate layer between the PHY layer of the wireless modules and a network layer. The communication module is configured to use an application programming interface to retrieve information from the PHY layer and write information to the PHY layer of the wireless modules, perform communication functions of upper MAC (media access control) and lower MAC layers for the wireless bands, and manage simultaneous communications over the wireless bands. The communications over the wireless bands can use a local area network protocol. | 2021-01-14 |
20210013908 | DEVICES AND METHODS RELATED TO WIDEBAND MULTIPLEXER FOR RADIO-FREQUENCY APPLICATIONS - Devices and methods related to wideband multiplexer for radio-frequency (RF) applications. In some embodiments, a method for multiplexing radio-frequency (RF) signals can include providing a common path to receive a plurality of RF signals. The method can also include processing a first RF signal through a first path such that the processed first RF signal is routed to the common path, the processing of the first RF signal including band-passing the first RF signal for a frequency band BX. The method can further include processing a second RF signal through a second path such that the processed second signal is routed to the common path, the processing of the second RF signal including band-stopping the second RF signal for the frequency band BX such that the common path includes a wideband response that includes the frequency band BX and one or more other frequency bands. | 2021-01-14 |
20210013909 | RADIO FREQUENCY CIRCUIT AND COMMUNICATION DEVICE - A radio frequency circuit can transfer radio frequency signals used in first and second communication systems, and includes: a first transfer circuit that transfers a radio frequency signal having a frequency range in a first communication band having first transmission and receiving bands; and a second transfer circuit that transfers a radio frequency signal having a frequency range in a second communication band having second transmission and receiving bands. The radio frequency circuit can simultaneously transmit transmission signals having frequency ranges in the first and second communication bands using the first and second transfer circuits. The first receiving band is lower than the first transmission band, the first transmission band is lower than the second transmission band, and the second transmission band is lower than the second receiving band. The first and second transfer circuits are mounted on different mounting boards. | 2021-01-14 |
20210013910 | RADIO-FREQUENCY CIRCUIT AND COMMUNICATION DEVICE - A radio-frequency circuit is used in simultaneous transfer of a radio-frequency signal of 4G and a radio-frequency signal of 5G, and includes a first transfer circuit that receives the radio-frequency signal of 4G or the radio-frequency signal of 5G which are input in a switching manner, and transfers a radio-frequency signal of a first communication band including a first transmission band and a first reception band and a radio-frequency signal of a second communication band including a second transmission band and a second reception band. The first and second transmission bands at least partially overlap. The first transfer circuit includes a first power amplifier that amplifies transmission signals of the first and second communication bands, and a first transmission filter that has a first passband including the first and second transmission bands, and passes the transmission signals of the first and second communication bands output from the first power amplifier. | 2021-01-14 |
20210013911 | COORDINATION OF COMMUNICATION PROTOCOLS USING A SHARED FRONT-END MODULE - A circuit component may determine whether first signal indicative of at least one of the plurality of communication interface circuits accessing the FEM during a respective communication slot associated with the FEM has been received, determine a first Received Signal Strength Indicator (RSSI) value for the respective communication slot used by the FEM based on data associated with the respective communication slot, and store the first RSSI value in response to the first signal not being received. The circuit component may then determine a first gain for a subsequent slot based on the first RSSI value and discard the first RSSI value in response to the first signal being received. | 2021-01-14 |
20210013912 | FRONT-END CIRCUIT - A front-end circuit includes a power amplifier circuit configured to amplify power of multiple transmission waves having different frequency bands, a transmission filter provided between the power amplifier circuit and an antenna and configured to pass a predetermined transmission frequency band of an output signal of the power amplifier circuit, a switch provided between the power amplifier circuit and the antenna, and a matching circuit. In accordance with switching of whether the matching circuit is connected, an insertion loss in a frequency band of an intermodulation distortion within a communication band in an intra-band carrier aggregation mode is increased as compared to an insertion loss in a frequency band of an intermodulation distortion within the communication band in a single mode. | 2021-01-14 |
20210013913 | TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD - A transmission device includes a first mapper, a second mapper, a converter, a superposer, and a transmitter. The first mapper is configured to map a first bit stream of a first data series to generate a first modulated symbol stream. The second mapper is configured to map a second bit stream of a second data series to generate a second modulated symbol stream. The first modulated symbol stream and the second modulated symbol stream are representable on a complex plane extending in a first direction and a second direction. The converter is configured to convert the second modulated symbol stream in accordance with the first modulated symbol stream only in the first direction on the complex plane. The superposer is configured to superpose the first modulated symbol stream and the second modulated symbol stream converted by the converter, at an amplitude ratio, to generate a multiplexed signal. | 2021-01-14 |
20210013914 | SYSTEM AND METHOD FOR CANCELLING STRONG SIGNALS FROM COMBINED WEAK AND STRONG SIGNALS IN COMMUNICATIONS SYSTEMS - A receiver for cancelling strong signals from combined weak and strong signals includes: a first circuitry for inputting a weak and strong signal as an input; a parametric cancellation circuit for inputting a representation of the strong signal and an output of the first circuitry to produce a cancellation signal; a second circuitry electrically coupled to the parametric cancellation circuit for inputting the cancellation signal to produce a modulated output; a demodulator electronically coupled to the second circuitry for demodulating the modulated output to produce a demodulated output and an error signal, where the demodulated output is the data contained in the weak signal; and an adaptation logic circuit for inputting the representation of the strong signal, the demodulated output and the error signal to adaptively produce parameters for the parametric cancellation circuit. The parametric cancellation circuit further inputs the error signal and the parameters to produce the cancellation signal. | 2021-01-14 |
20210013915 | COUPLED-AMPLIFIER MULTI-FREQUENCY CIRCUIT TOPOLOGIES APPLICABLE TO MASS SPECTROMETER RADIO-FREQUENCY DRIVE SYSTEMS - A circuit and method for providing high-voltage radio-frequency (RF) energy to an instrument at multiple frequencies includes a plurality of inputs each configured to receive an RF voltage signal oscillating at a corresponding frequency, and a step-up circuit for generating magnified RF voltage signals based on the received RF voltage signals. The step-up circuit includes an LC network operable to isolate the RF voltage signals at the plurality inputs from one another while preserving a voltage magnification from each input to a common output at each of the corresponding frequencies. | 2021-01-14 |
20210013916 | BEAM FORMING DEVICE AND BEAM FORMING METHOD - A beam forming device includes a plurality of control circuits and a plurality of antenna elements. Each of the plurality of control circuits controls at least either phases or amplitudes of a plurality of input signals to generate a transmission signal. Each of the plurality of antenna elements outputs the transmission signal generated by a corresponding control circuit. A frequency range of the transmission signal generated by each of the control circuits is higher than frequency ranges of the input signals. | 2021-01-14 |
20210013917 | WIRELESS EARBUD COVER WITH ANTENNA ELEMENT - An apparatus may include a cover configured to couple with a wireless earbud, and a conductive element positioned in the cover. The conductive element may be configured to parasitically couple with an antenna of the wireless earbud when the antenna is energized. The conductive element may be configured to direct radio frequency energy away from a user of the wireless earbud. | 2021-01-14 |
20210013918 | MOLDED MOBILE DEVICE CASE WITH STORAGE COMPARTMENT - A protective case for a mobile device having a molded multi-layered construction is disclosed herein. The case includes a mobile device cavity that is configured to receive and retain a mobile device and a storage compartment. The exterior back surface of the case may be configured to conceal the existence of the storage compartment or may alternatively be transparent to facilitate scanning of personal items held in the storage compartment without requiring removal therefrom. | 2021-01-14 |
20210013919 | Antenna integration capable of receiving wireless signals - An antenna integration is applicable for a wireless microphone, a wireless teaching system, and a wireless tour guide system of ultra-high frequencies. The antenna integration contains an antenna integrator including: multiple antenna input ends, a power control module, multiple radio frequency (RF) attenuations, and multiple radio frequency (RF) input ons/offs. The multiple antenna input ends are arranged in the antenna integrator and are configured to input radio frequency (RF) signals of multiple pairs of antennas. The power control module is arranged in the antenna integrator and is configured to turn on/off a power supply to the multiple pairs of antennas. The multiple radio frequency (RF) attenuations are arranged in the antenna integrator and are configured to control an input of the RF signals. The multiple radio frequency (RF) input ons/offs are arranged in the antenna integrator and are configured to turn on/off the RF signals. | 2021-01-14 |
20210013920 | DEVICE AND METHOD FOR CALIBRATING COMMUNICATION MODULE - An electronic device according to various embodiments of the present invention can comprise: a housing; a first antenna element positioned inside the housing or at a first position thereof; a second antenna element positioned inside the housing or at a second position separated from the first position thereof; and a wireless communication circuit positioned inside the housing and electrically coupled to the first antenna element and the second antenna element. The wireless communication circuit comprises: a wireless modem; a source RF circuit electrically connected to the wireless modem, and configured to generate an IF signal; and a second RF circuit positioned at a fourth position closer to the second position than to the first position, wherein: each of the first RF circuit and the second RF circuit is configured to alternately receive an IF signal for transmitting a transmitted signal via the first antenna element and the second antenna element, and includes a first electrical path between the source RF circuit and the second RF circuit, a second electrical path between the source RF circuit and the second RF circuit, and a third electrical path between the first RF circuit and the second RF circuit; the first RF circuit, while being electrically blocked from the first antenna element, is configured to form at least a portion of a first loopback path from the first RF circuit to the source RF circuit through the third electrical path and the second electrical path; and the second RF circuit, while being electrically blocked from the second antenna element, can be configured to form at least a portion of a second loopback path from the second RF circuit to the source RF circuit through the third electrical path and the first electrical path. Additional other embodiments are also possible. | 2021-01-14 |
20210013921 | ELECTRONICS INCLUDING ELECTRICAL ISOLATION - An electronics ( | 2021-01-14 |
20210013922 | COMMUNICATION DEVICE - A communication device includes a control device and a compensation device. The control device communicates with another device using an antenna. The compensation device is connected to the control device via a first transmission line. The compensation device is connected to the antenna via a second transmission line. The compensation device compensates a loss in an RF signal bidirectionally transmitted between the control device and the antenna via the first and second transmission lines. | 2021-01-14 |
20210013923 | LOW NOISE SIGNAL CHAIN ARCHITECTURE - Technology for a low-noise signal chain is disclosed. The low-noise signal chain can include a signal path configured to carry a signal. The low-noise signal chain can include a bypassable amplifier communicatively coupled to the signal path. The low-noise signal chain can include a switchable band pass filter communicatively coupled to the signal path. The low-noise signal chain can include an amplifier bypass path communicatively coupled to the signal path. The signal can be configured to be directed to the amplifier bypass path to bypass the bypassable amplifier. The low-noise signal chain can include a band pass filter bypass path communicatively coupled to the signal path. The signal can be configured to be directed to the band pass filter bypass path to bypass the switchable band pass filter. | 2021-01-14 |
20210013924 | APPARATUS AND METHOD FOR NOISE REDUCTION IN A FULL DIPLEX REPEATER - A full duplex repeater includes an upstream echo canceller and noise reduction circuitry. The noise reduction circuitry is configured to receive an upstream signal from the upstream echo canceller, separate the upstream signal into a plurality of Fast Fourier Transform (FFT) blocks, multiply the upstream signal by a 100% raised cosine window, convert the upstream signal into frequency domain using FFT, clean predetermined portions of the upstream signal in the FFT blocks based on a predetermined threshold, convert the upstream signal from frequency domain to time domain using Inverse FFT; and recombine the FFT blocks. | 2021-01-14 |
20210013925 | CROSSTALK MITIGATION - Methods and devices are provided for estimating crosstalk from a legacy line to a vectored line. | 2021-01-14 |
20210013926 | DIGITAL SUBSCRIBER LINE INTERFERENCE IDENTIFICATION - Interference on DSL (Digital Subscriber Lines) systems can be identified by collecting modem data and determining, for a plurality of time intervals, whether the line is carrying traffic and/or whether there are errors on the line. The presence of interference can be inferred from the correlation of the traffic data and the error data. | 2021-01-14 |
20210013927 | DOUBLE TALK DETECTION METHOD, DOUBLE TALK DETECTION APPARATUS AND ECHO CANCELLATION SYSTEM - A double talk detection method, a double talk detection apparatus and an echo cancellation system are provided. The double talk detection method comprises: determining, according to an energy ratio between a far-end digital voice signal and a near-end digital voice signal, and a frequency coherence value between the near-end digital voice signal and the far-end digital voice signal, whether a near-end speaker's digital voice signal is present in the near-end digital voice signal. The double talk detection method avoids missing detection and false detection, improves the accuracy of double talk detection, cancels the echo in the near-end voice signal thoroughly when applied in the field of echo cancellation, and improves the communication experience of both talk parties. | 2021-01-14 |
20210013928 | METHODS AND APPARATUS FOR LAUNCHING OR RECEIVING ELECTROMAGNETIC WAVES - Aspects of the subject disclosure may include, a system configured for generating a signal, and inducing, by a coupler, an electromagnetic wave that propagates along a physical transmission medium. The coupler can be configured to convert the signal into a plurality of wave modes that combine to form the electromagnetic wave having an electromagnetic field configuration that reduces leakage of the electromagnetic wave as the electromagnetic wave propagates along the physical transmission medium. Other embodiments are disclosed. | 2021-01-14 |
20210013929 | ELECTRICAL NODE WITH MONITORING FEATURE - A first electrical node configured to monitor a digital signal is disclosed. The first electrical node includes a first connector and a second connector. The first electrical node includes a processor configured to receive a digital signal from the second connector. The processor is configured to determine whether a portion of the digital signal is intended for the first electrical node. The processor is configured to convert the portion of the digital signal to an analog signal based on whether the portion is intended for the first electrical node without affecting the digital signal received. | 2021-01-14 |
20210013930 | GENERALIZED BEAM MANAGEMENT FRAMEWORK - Various aspects of the technology described herein are directed towards a generalized beam management framework in which beam management takes into account interference to steer a beam. Aspects comprise configuring a report request comprising a resource setting with channel state information-reference signal resource data and an associated report setting with parameter data corresponding to the one or more channel state information-reference signal resources. The report request is configured to instruct a user equipment device to include interference information when performing user equipment device beam management and reporting. Upon receiving the report request, the user equipment performs a beam measurement operation that includes interference information when generating the beam management report sent to the network device. | 2021-01-14 |
20210013931 | AGRICULTURAL MACHINES COMPRISING COMMUNICATION SYSTEMS POSITIONED ADJACENT A CAB - Communication systems positioned within a cab for agricultural operations include at least one antenna element and a communication module having a cellular modem. A machine (e.g., tractor, combine, etc.) for agricultural operations includes a cab for an operator of the machine and a communication system adjacent a window or roof of the cab. | 2021-01-14 |
20210013932 | CODEBOOK FOR FULL-DIMENSION MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATIONS - Various embodiments include an apparatus to be employed by an enhanced Node B (eNB), the apparatus comprising communication circuitry to receive, from a user equipment (UE), feedback information and control circuitry, coupled with the communication circuitry, to identify a codeword from a three-dimensional codebook based on the feedback information received from the UE, wherein the communication circuitry is further to precede data to be transmitted to the UE based on the codeword. An apparatus to be employed by a UE and additional methods are described. | 2021-01-14 |
20210013933 | FEEDBACK OF BEAM REPETITION AND DIVERSITY MODE - A user equipment (UE) may measure signal characteristics of a beam reference signal and determine, based on the measured signal characteristics, a beam repetition and diversity (R/D) mode to be used in communications between the UE and a base station. In some examples, UE feedback to the base station may include an indication of the determined beam R/D mode, as well as channel quality information associated with one or more beams to which the determined beam R/D mode is to be applied and/or operating parameters (e.g., a mixed beam repetition and diversity pattern) associated with the beam R/D mode. | 2021-01-14 |
20210013934 | METHOD AND SYSTEM FOR MULTIPLE INPUT, MULTIPLE OUTPUT COMMUNICATIONS IN MILLIMETER WAVE NETWORKS - Disclosed herein are methods and systems for processing signals from multiple users at an antenna array, and to provide beamforming for transmitting to those multiple users, and more particularly for channel estimation and wireless signal recovery in wireless networks carrying transmissions in the millimeter wave frequency bands to enable such beamforming. Such methods and systems enable MIMO communications at millimeter wave frequencies for multiple users communicating with a MIMO antenna system, such as a massive MIMO multi-antenna system (multi-antenna arrays that consist of hundreds of antenna elements). Such methods and systems may characterize the communications link (i.e., channel) at that frequency band, and directly provide a precoding matrix for beam steering towards a particular user that is in communication with the antenna system. | 2021-01-14 |
20210013935 | SIGNALING FOR SCHEDULED MULTI-USER MULTIPLE-INPUT MULTIPLE-OUTPUT ACKNOWLEDGEMENT - This disclosure describes systems, methods, and devices related to scheduled multi-user multiple-input multiple-output (MU-MIMO) acknowledgement. A device may determine a block acknowledgment schedule associated with one or more destination devices. The device may cause to send a multi-user multiple-input multiple-output (MU-MIMO) frame including the block acknowledgment schedule. The device may identify one or more acknowledgment frames received from at least one of the one or more destination devices based on the block acknowledgment schedule. | 2021-01-14 |
20210013936 | Uplink Antenna Selection Method and Apparatus - A method includes: receiving, from a network device, an index of a precoding matrix and a quantity of layers for uplink transmission; determining a first target codebook based on the quantity of layers for uplink transmission and a quantity of physical antennas of a communications apparatus, where the first target codebook includes a plurality of first precoding matrices; and determining, based on a first target precoding matrix that corresponds to the index and that is in the plurality of first precoding matrices, a target physical antenna used by the communications apparatus to send uplink information. | 2021-01-14 |
20210013937 | COMMUNICATION METHOD AND COMMUNICATIONS APPARATUS - This application provides a communication method and a communications apparatus. The method includes: generating, by a terminal device, first indication information, where the first indication information is used to indicate a precoding matrix, the precoding matrix is applied to at least one antenna panel and includes at least one precoding vector, each precoding vector includes a plurality of subvectors, each subvector corresponds to an antenna port on the antenna panel and includes two polarization vectors, and each polarization vector is generated by performing weighted combination on a plurality of basis vectors; and sending the first indication information. In embodiments of this application, accuracy of a codebook can be improved. | 2021-01-14 |
20210013938 | SIGNAL GENERATION METHOD, TRANSMISSION DEVICE, RECEPTION METHOD, AND RECEPTION DEVICE - A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal. | 2021-01-14 |
20210013939 | COMMUNICATION METHOD AND RELATED DEVICE - Embodiments of this application provide a communication method and a related device. The method is applied to a base station. The base station includes a plurality of antenna arrays and a baseband processing unit. The plurality of antenna arrays are distributed around a communication area and are all connected to the baseband processing unit. A terminal in the communication area is configured to perform signal transmission with the antenna arrays, to implement communication with the baseband processing unit. The method includes: when an obstacle exists between the terminal and a primary antenna array performing signal transmission with the terminal, controlling, by the base station through the baseband processing unit, a secondary antenna array to perform signal transmission with the terminal, where the primary antenna array and the secondary antenna array are in the antenna arrays included in the base station, and in the plurality of antenna arrays except the primary antenna array, the secondary antenna array is an antenna array with highest quality of signals between the antenna array and the terminal. According to the embodiments of this application, smooth communication between the terminal and the base station can be ensured. | 2021-01-14 |
20210013940 | Flexible Beamforming Architecture - An apparatus is disclosed for implementing a flexible beamforming architecture. In an example aspect, the apparatus comprises an antenna array comprising a first antenna element with a first feed port and a second antenna element with a second feed port. The apparatus also comprises a wireless transceiver with a first dedicated transceiver path coupled to the first feed port and a second dedicated transceiver path coupled to the second feed port. The wireless transceiver also comprises a flexible beamforming network configured to selectively be in a first configuration that couples both the first dedicated transceiver path and the second dedicated transceiver path to a first intermediate transceiver path of the wireless transceiver, and be in a second configuration that connects the first dedicated transceiver path to the first intermediate transceiver path and connects the second dedicated transceiver path to a second intermediate transceiver path of the wireless transceiver. | 2021-01-14 |
20210013941 | CHANNEL STATE INFORMATION (CSI) FOR UNLICENSED SPECTRUM - This disclosure provides systems, methods, and apparatuses for the identification of a channel state information reference signal (CSI-RS) resource. In some aspects, a UE that receives the CSI-RS may determine CSI feedback based at least in part on the CSI-RS after detecting the CSI-RS resource that includes the CSI-RS. Signaling or techniques for when no CSI-RS is detected (such as when the base station fails a channel access operation for all available CSI-RS resources) are also provided. Furthermore, approaches for rate matching for a shared channel around CSI-RS resources or for CSI interference management (CSI-IM) resources are provided, as well as CSI reporting approaches for cases when the UE fails to transmit CSI feedback due to a failed channel access operation, such as a triggered or re-triggered CSI report. | 2021-01-14 |
20210013942 | METHOD AND DEVICE OF TRANSMITTING AND RECEIVING REFERENCE SIGNAL - A method of transmitting a reference signal is provided. The method is applied to a network device and includes: transmitting a first indication on a second downlink frequency domain transmission resource, wherein the first indication is used to activate a first downlink frequency domain transmission resource; transmitting a CSI-RS on the first downlink frequency domain transmission resource according to a first CSI resource configuration corresponding to the first downlink frequency domain transmission resource when it is determined that there is the first CSI resource configuration, wherein the first CSI resource configuration includes a periodicity characteristic of the CSI-RS. | 2021-01-14 |
20210013943 | RATE MATCHING OF REFERENCE SIGNAL RESOURCES IN MULTIPLE TRANSMIT RECEIVE POINT (TRP) SCENARIOS - Certain aspects of the present disclosure provide techniques for rate matching PDSCH around NZP CSI RS transmissions in multi-TRP scenarios. In some cases, a network entity may signal a rate matching behavior to a user equipment (UE) for processing a physical downlink shared channel (PDSCH) configured with a first quasi co-location association and transmitted from a first transmission reception point (TRP) that potentially collides with one or more types of non-zero power (NZP) reference signals (RS) configured with a second quasi co-location association and transmitted from a second TRP using one or more resource sets. | 2021-01-14 |
20210013944 | ELECTRONIC DEVICE, METHOD FOR SAME AND INFORMATION PROCESSING DEVICE - Provided are an electronic device for a network control terminal and a network node, and a method for the electronic device. The electronic device for a network control terminal comprises processing circuitry configured to set a first condition concerning a beam-forming capacity of a network node for determining the network node capable of serving as a relay node, and to generate control signaling of indication information comprising the first condition for indicating the network node served by the network control terminal. | 2021-01-14 |
20210013945 | TRANSMISSIONS BETWEEN A BASEBAND UNIT AND A RADIO UNIT OF TRANSFORMED SIGNALS IN A BEAM SPACE - There is provided a method for exchanging spatial information of signals received from a User Equipment (UE) between a radio unit and a baseband unit. The method comprises: determining a channel estimate based on signals received from a User Equipment (UE); selecting a spatial transformation to be applied to the received signals, based on the channel estimate; and sending a set of signals transformed by the selected transformation to a baseband unit. A radio unit for implementing this method is also provided. | 2021-01-14 |
20210013946 | Antenna Geometries for Improved MIMO Communication - A method for selecting a geometry of an antenna array in a multiple-input multiple-output, MIMO, radio communication system ( | 2021-01-14 |
20210013947 | Antenna Selection Method And Related Apparatus - Methods, systems, and apparatus for antenna selection are provided. In one aspect, a method includes: receiving downlink control information (DCI) from a network device, obtaining antenna selection indication information corresponding to the DCI, the antenna selection indication information indicating one or more first antennas that are in at least three antennas of a terminal device and are used for uplink transmission, and sending information to the network device by using the one or more first antennas. | 2021-01-14 |
20210013948 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING BEAM FAILURE RECOVERY REQUEST FOR SECONDARY CELL - A communication method and system for converging a 5 | 2021-01-14 |
20210013949 | METHOD AND APPARATUS FOR HANDLING SCHEDULING REQUEST (SR) CANCELLATION, RANDOM ACCESS (RA) PRIORITIZATION AND CONCURRENT OCCURRENCE OF BEAM FAILURE RECOVERY (BFR) ON PRIMARY CELL (PCELL) AND SECONDARY CELL (SCELL) - A communication method and system for converging a 5 | 2021-01-14 |
20210013950 | BEAM FAILURE PROCESSING METHOD, TERMINAL, AND NETWORK DEVICE - A beam failure processing method, a terminal and a network device are provided. The method includes: sending a beam failure recovery request to a network device in a case that a beam failure event occurs on an active BWP; and receiving, through a CORESET-BFR in a target downlink BWP, response information fed back by the network device according to the beam failure recovery request, where the target downlink BWP corresponds to at least two BWPs, and the at least two BWPs includes the active BWP. | 2021-01-14 |
20210013951 | CONFIGURATION METHOD FOR BEAM FAILURE AND TERMINAL - A configuration method for beam failure and a terminal are provided, and the method includes: receiving notification signaling used to notify a change in a state of a cell, a cell group, or a carrier group; configuring at least one of a counter and a timer according to the change in the state of the cell, the cell group, or the carrier group, and/or, stopping a specific operation during a beam failure recovery procedure according to the change in the state of the cell, the cell group, or the carrier group, wherein the counter and the timer are a counter and a timer used for beam failure detection and configured by the terminal for the cell or a cell in the cell group or a cell in a carrier group. | 2021-01-14 |
20210013952 | Communication Devices for Efficient Beam Management - A first communication device receives a first signal, the first signal being transmitted by a second communication device using a first spatial-domain transmit filter; determines, based on the first signal, a Line-of-Sight characteristic associated with the first spatial-domain transmit filter, and transmits a first control message to the second communication device, the first control message indicating the Line-of-Sight characteristic associated with the first spatial-domain transmit filter. | 2021-01-14 |
20210013953 | WIDEBAND AND MULTI-BAND ARCHITECTURES FOR MULTI-USER TRANSMISSION WITH LENS ANTENNAS - Certain aspects of the present disclosure provide techniques and architectures for the use of multiple antenna technology which may enable a wireless communication system to exploit the spatial domain to support spatial multiplexing, beamforming, and transmit diversity over a wide frequency range and/or multiple bands to communicate with multiple users. | 2021-01-14 |
20210013954 | ELECTRONIC DEVICE, METHOD AND APPARATUS FOR WIRELESS COMMUNICATION SYSTEM, AND STORAGE MEDIUM - The present disclosure relates to electronic device, method and storage medium for a wireless communication system. One embodiment of the present disclosure proposes beam management based on matching condition of channel path parameters under different beams. An electronic device includes a processing circuitry configured to: estimate, based on reference signals which are transmitted from the transmitter of the wireless communication system based on at least one second beam included in coverage of a first beam, parameters for channel paths from the transmitter to the receiver corresponding to the second beam, and wherein a particular second beam of the at least one second beam is selected based on the estimated parameters for channel paths, and the estimated parameter for channel path corresponding to the particular second beam matches parameter for channel path corresponding to the first beam. | 2021-01-14 |
20210013955 | AUTONOMOUS SELECTION OF A PHYSICAL DOWNLINK CONTROL CHANNEL BEAM - Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, from a plurality of search space sets associated with a plurality of control resource sets, a subset of the plurality of search space sets to monitor. The UE may monitor the subset of the plurality of search space sets, to receive a downlink control information message, for a physical downlink control channel beam associated with the subset of the plurality of search space sets. Numerous other aspects are provided. | 2021-01-14 |
20210013956 | BEAM FORMING USING AN ANTENNA ARRANGEMENT - There are provided mechanisms for beam forming using an antenna array comprising dual polarized elements. A method comprises generating one or two beam ports. The one or two beam ports are defined by combining at least two non-overlapping subarrays. Each subarray has two subarray ports. The two subarray ports have identical power patterns and mutually orthogonal polarizations. The at least two non-overlapping subarrays are combined via expansion weights. The expansion weights and map the one or two beam ports to subarray ports such that the one or two beam ports have the same power pattern as the subarrays. At least some of the expansion weights have identical non-zero magnitude and are related in phase to form a transmission lobe. The method comprises transmitting signals using said one or two beam ports. | 2021-01-14 |
20210013957 | APPARATUS AND METHOD FOR TRANSMITTING AND/OR RECEIVING DIGITAL INFORMATION USING ELECTROMAGNETIC WAVES - An apparatus is provided for generating a transmission wave. The apparatus includes a plurality of antennas and a plurality of signal generators. The plurality of antennas has polarization diversity. The plurality of signal generators are each coupled to one of the antennas and configured to generate a continuous twisted wave by driving each of the antennas using independent, coordinated, and distinct sinusoidal waves, and having a twist frequency and a carrier frequency, the twist frequency lower than the carrier frequency. A method is also provided. | 2021-01-14 |
20210013958 | APPARATUS AND METHOD FOR BROADBAND WIRELESS LOCAL AREA COMMUNICATION - Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval. | 2021-01-14 |
20210013959 | Method for Sending Synchronization Signal by Relay Node, and Apparatus - A method for sending a synchronization signal in a relay system, and an apparatusthe method including receiving, by a relay node, synchronization signal information sent by a parent node through an air interface, where the synchronization signal information comprises at least one of a subcarrier spacing of a synchronization signal, information about an operating frequency band of the relay node, information about a physical broadcast channel of the relay node, a synchronization signal periodicity, or indication information of a synchronization signal obtaining manner, and sending, by the relay node, the synchronization signal based on the synchronization signal information. | 2021-01-14 |
20210013960 | MONITORED CONDITION RESPONSE IN A WIRELESS COMMUNICATION DEVICE VIA ONE OR MORE RELAY DEVICES - Methods, systems, and devices for wireless communications are described. One method may include monitoring, via one or more sensors of a first user equipment (UE), at least one of a thermal overload condition or an exposure condition associated with a first communication link between a first UE and a base station. Based on the monitoring, for example, the first UE may determine that at least one of the thermal overload condition or the exposure condition exceeds a corresponding predetermined switch threshold. Based on the determining, a second communication link may be established between the first UE and a second UE, where the second UE is configured to operate as a relay UE, for communications between the first UE and the base station via (in-part) the second communication link. | 2021-01-14 |
20210013961 | SYSTEM FOR REPORTING OPTICAL LINK FAILURES USING INTELLIGENT SMALL FORM-FACTOR PLUGGABLE OPTICAL TIME DOMAIN REFLECTOMETER - Disclosed embodiments include a small form-factor pluggable (SFP) optical transceiver having optical time domain reflectometer functionality. A monitor processor is included in the transceiver to report link status and failure information to a cloud-based monitoring application. When a fiber optic link is established, the monitor processor remains idle to reduce power consumption by the transceiver. Upon failure of the link, the monitor processor sends a failure report to the monitoring application which can use the data to alert operators to presence and location of optical fiber breaks in the network. | 2021-01-14 |
20210013962 | METHOD AND APPARATUS FOR DETECTING OPERATIONAL CONDITIONS OF AN OPTICAL LINK IN AN OPTICAL NETWORK - There is provided apparatuses to detect occurrence and location of damages on optical fiber links in advance by converting an optical span in optical network to an interferometry based sensing media. The interferometry based sensing media may enable detection of mechanical perturbation or mechanical vibration occurred on optical fiber links across optical network. The system employed with the interferometry based sensing media can detect occurrence of mechanical perturbation or mechanical vibration as well as discover the location of such event occurred using standard interferometry based sensing techniques. | 2021-01-14 |
20210013963 | STATE ESTIMATING DEVICE AND COMMUNICATION SYSTEM - A state estimating device includes a pre-processing unit and an estimating unit. The pre-processing unit acquires data representing at one or more of a phase of a signal transmitted from a transmission unit of a transmission device and received at a reception unit of another transmission device via a transmission path, a reception strength, a reception quality, a voltage after conversion into an electric signal, and a signal processing parameter used in reception processing, and processes the acquired data into feature data to be used for state estimation. The estimating unit estimates a state of the transmission path, an abnormal state of the transmission unit, or an abnormal state of the reception unit, on the basis of the feature data. | 2021-01-14 |
20210013964 | OPTICAL SIGNAL MONITOR, OPTICAL WAVELENGTH MULTIPLEXING TRANSMITTER, AND METHOD FOR MONITORING OPTICAL SIGNAL - An optical signal monitor, including: a storage that holds a threshold value set for each of determination areas having a bandwidth set in accordance with an average grid of dummy light; a measurement section that sequentially measures an optical intensity of an inputted wavelength-multiplexed optical signal with respect to each of measurement areas obtained by dividing the determination area into areas with a bandwidth sufficiently smaller than a grid width of a monitoring-target optical signal composing the wavelength-multiplexed optical signal, and output measured values; and a section that determines that dummy light corresponding to the determination area needs introducing if each of measured values in the determination area is smaller than a threshold value, and, determines that dummy light corresponding to the determination area does not need introducing if at least one of the measured values in the determination area is equal to or larger than the threshold value. | 2021-01-14 |
20210013965 | SUBMARINE OPTICAL COMMUNICATION CONTROL DEVICE, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - A submarine optical communication system control device ( | 2021-01-14 |
20210013966 | FREE-SPACE OPTICAL COMMUNICATION APPARATUS - There includes: an optical splitter splitting modulated light into local oscillator light and signal light beams; a phase adjustment unit adjusting phases of signal light beams; an optical amplification unit amplifying signal light beams phase-adjusted; an optical phased array antenna outputting signal light beams amplified to space; a phase control unit synchronizing with a reference signal light beams, output from the optical phased array antenna and multiplexed with the local oscillator light; an acquisition and tracking mechanism adjusting output angles of signal light beams; an angle detection unit detecting arrival angles of received light; and a control unit setting the reference signal to first reference signals having different frequencies, supplementing the received light based on a detection result, setting the reference signal to second reference signals having equal frequencies, and tracking the received light based on the detection result. | 2021-01-14 |
20210013967 | TEMPOROSPATIAL SOFTWARE-DEFINED NETWORKING FOR NGSO SATELLITE NETWORKS - The disclosure provides for a system that includes a network controller. The network controller is configured to receive information from nodes of a network, where nodes include one node that is in motion relative to another node. The network controller is also configured to generate a table representing available nodes and possible links in the network based on the information, and determine a topology of the network based on the table. Additionally, the network controller is configured to receive client data information from a client device, and determine flows for the topology based on the client data information. Each flow includes one or more requirements for a routing path through the network. The network controller is configured to generate a network configuration for the topology based on the flows, and send instructions to the nodes of the network for implementing the network configuration and transmitting client data. | 2021-01-14 |
20210013968 | SYSTEMS AND METHODS FOR OPTICAL MODULATION INDEX CALIBRATION IN A CATV NETWORK - Systems and methods for optical modulation index calibration in a CATV network. | 2021-01-14 |
20210013969 | SUBMARINE OPTICAL TRANSMISSION APPARATUS AND SUBMARINE OPTICAL COMMUNICATION SYSTEM - An object to provide a submarine optical transmission apparatus capable of efficiently housing optical components and electric components. First component housing units can house either or both of an optical component and an electric component and are stacked in a Z-direction. A case can house the first component housing units and a longitudinal direction thereof is an X-direction. A heat dissipating member is disposed in the case and conducts heat generated in the first component housing units to the case. | 2021-01-14 |
20210013970 | OPTICAL TRANSCEIVER DEVICE, OPTICAL MODULATOR CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM STORING OPTICAL MODULATOR CONTROL PROGRAM - A feedback proportional control repeats the following processing of starting control of an optical modulator by a control signal that corresponds to a reference value set in the preliminary search or in the previous cycle, calculating a new reference value based on an error signal obtained from the optical modulator, and controlling the optical modulator by the control signal that corresponds to the new reference value, thereby acquiring the control signal in which the error signal is minimized as an optimal control signal, setting the acquired control signal as a signal for controlling the optical modulator, and storing the optimal control signal as the reference value to be used at a time of starting the feedback proportional control in the next cycle. | 2021-01-14 |
20210013971 | OPTICAL MODULATION/DEMODULATION METHOD, OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMITTING DEVICE AND OPTICAL RECEIVING DEVICE - An object is to provide an optical modulation/demodulation method, an optical communication system, an optical transmitting device, and an optical receiving device capable of inhibiting an increase in the cost and a decrease in the band at the time of multiplexing services. The optical transmitting device according to the present invention sums a plurality of binary signals that have bit rates having such relation that the bit rate of any higher speed side is twice or more integer multiples of a bit rate of any lower speed side, having smaller amplitude as the corresponding bit rate becomes higher and having matched rise and fall timings, and generates a multi-level signal, and modulates light from one light source. In other words, generating a multi-level signal as a modulation signal enables a plurality of services to be multiplexed by one transmitter. The optical receiving device according to an aspect of the present invention sets a plurality of thresholds that can be used for identifying all the amplitude values of the multi-level signal for an optical signal that is service-multiplexed by the optical transmitting device described above and compares an amplitude of the multi-level signal acquired by performing photoelectric conversion of the received optical signal with the plurality of thresholds. The optical receiving device determines bits of the multiplexed binary signal on the basis of a result of the comparison. | 2021-01-14 |
20210013972 | REFLECTION-TYPE COHERENT OPTICAL COMMUNICATION SYSTEM COMBINED WITH UNIDIRECTIONAL OPTICAL SIGNAL AMPLIFICATION - A reflection-type coherent optical communication system combined with unidirectional optical signal amplification, comprises a polarization controller, a polarization beam splitter, a polarization maintaining optical circulator, an In-line polarizer, an optical modulator, a photoelectric converter, an electrical comparator, an optical amplifier, a laser, a coupler, a reflection end and a coherent receiver. A light source is disposed at a receiving end, and the laser emits an optical carrier. The optical carrier is transmitted through the coupler and an optical fiber. Thereafter, the polarization state of the optical carrier is controlled by two ways, the optical carrier passes through the polarization controller in a first way, and two beams of light are output by the polarization beam splitter. A beam of light with high-power is modulated through a first branch, and the modulation signal is returned along an original optical path. | 2021-01-14 |
20210013973 | NODE-DIVISION MULTIPLEXING WITH SUB-WDM NODE PORTS FOR PSEUDO-ALL-TO-ALL CONNECTED OPTICAL LINKS - A pseudo all-to-all connected system for optical communications are provided. A plurality of nodes are grouped into a node-division multiplexing (NDM) node. An electrical shuffle comprising a plurality of electrical traces connects each port of the plurality of nodes to at least one optical transceiver. The at least one optical transceiver is configured to multiplex a plurality of electrical signals from the plurality of nodes into a plurality of wavelength division multiplexing (WDM) optical signals, the electrical shuffle being configured to route the plurality of electrical signals from each port of the plurality of nodes to form one of a plurality of ordered sequences of signals from the plurality of nodes. A fiber shuffle is configured to route the plurality of WDM optical signals to and from a plurality of NDM connectors. | 2021-01-14 |
20210013974 | MIMO WIDEBAND RECEIVER AND TRANSMITTER, AND METHOD THEREOF - In aspect, the disclosure includes a method of configuring a MIMO wideband receiver. The method would include estimating, on a SISO basis, a set of post-processing parameters for a plurality of receiver channels; receiving, by each of the plurality of receiver channels, a first test signal which is transmitted from a first transmitter channel on a MIMO basis; calculating a first set of crosstalk parameters in response to receiving the first test signal; receiving, by each of the plurality of receiver channels, a second test signal which is transmitted from a second transmitter channel on the MIMO basis; calculating a second set of crosstalk parameters in response to receiving second test signal; and calculating the set of post-processing parameters based on the first set of crosstalk parameters and the second set of crosstalk parameters by cancelling a crosstalk interference among plurality of receiver channels. | 2021-01-14 |
20210013975 | OVER-THE-AIR CALIBRATION OF ANTENNA SYSTEM - In an embodiment, an apparatus included in a communications system includes a transmit section including a first baseband section and a first radio frequency (RF) section, wherein the transmit section is configured to receive a calibration signal, the first RF section is configured to generate a RF calibration signal based on the calibration signal, and wherein the calibration signal comprises an orthogonal code based signal; and a receive section configured to receive the RF calibration signal over-the-air, wherein the receive section includes a second RF section and a calibration section, wherein the second RF section is configured to generate a received calibration signal based on the RF calibration signal, and wherein the calibration section is configured to determine one or more of gain, baseband delay, or RF delay compensation values, based on the inputs, to calibrate the transmit section. | 2021-01-14 |
20210013976 | WIRELESS RADIO FREQUENCY INSTRUMENTATION AND ADAPTIVE NETWORK MANAGEMENT SYSTEM - Proactive systems for monitoring, diagnosing, and providing a plan of corrective action for Radio Frequency (RF) hardware components as part of a greater system or network in telecommunications. The system can be used for remote sites and in conjunction with current network management tools as the most prolific and fundamental piece of instrumentation in telecommunication networks. The system can be used simply as an RF development instrument for any industry requiring the use of high frequency signals. It consists of four sensor modules that are wirelessly linked to a receiver module which could be miles away. The sensors are RF power detector, Spectrum Analyzer, Interference Cancelling Synthesizer, dual function RF power detector and spectrum analyzer. The data gathered allows the user to create a profile for specific malfunctions in the RF chain, as well as interference direction, strength and source type leading to remotely deployed solution, and a mobile network. | 2021-01-14 |
20210013977 | SYSTEM AND METHOD FOR MITIGATING BROADBAND INTERFERENCE - Systems and methods for operating a communication device so as to mitigate intermodulation interference to a signal. The methods comprise: continuously monitoring several communication channels by the communication device; using a noise floor level estimate of the communication device to detect when the communication device is under an influence of hig interference; determining an optimal level of attenuation to be applied by a variable attenuator of the communication device's receiver so as to mitigate the influence of intermodulation interference to the signal; and selectively adjusting an amount of attenuation being applied by the variable attenuator to achieve the optimal level of attenuation for mitigating intermodulation interference. | 2021-01-14 |
20210013978 | TRANSMITTER AND/OR RECEIVER FOR TRANSMITTING AND/OR RECEIVING RADIO INFORMATION SIGNALS - The invention relates to an OFDM-based transmitter ( | 2021-01-14 |
20210013979 | ADAPTIVE PROCESSING IN TIME-MULTIPLEXED SIGNALS - Systems and methods are provided for broadcasting a signal. A multiplexer combines a first signal from a first signal source and a second signal from a second signal source as a time divisional multiplexed signal and provides a timing signal, distinct from the time division multiplexed signal, that indicates, for a given time, from which of the first and the second signal source a corresponding portion of the time divisional multiplexed signal originated. A signal conditioning component receives each of the time divisional multiplexed signal and the timing signal and alters the time division multiplexed signal in a manner that prepares the signal for broadcast. The signal conditioning component dynamically alters its behavior according to the timing signal. An antenna transmits the time division multiplexed signal. | 2021-01-14 |
20210013980 | MESSAGE COLLISION REDUCTION IN UNICABLE SYSTEMS - In some embodiments, a first receiver in a plurality of receivers receives a signal via a unicable line from a satellite transmission. The unicable line connects the plurality of receivers to an interface that receives multiple inputs from a satellite reflector dish. The first receiver generates a first unicable message for delivery on the unicable line and detects a characteristic on the unicable line to determine whether a second unicable message from a second receiver in the plurality of receivers is being sent on the unicable line. When the second unicable message is detected, the first receiver delays transmission of the first unicable message by a time period. When the second unicable message is not detected, the first receiver transmits the first unicable message on the unicable line. | 2021-01-14 |
20210013981 | SENSOR SYSTEM, TRANSMISSION TERMINAL, TIME INFORMATION PROCESSING DEVICE, AND SYNCHRONIZATION METHOD - According to one embodiment, a transmission terminal, a time information processing device, and a synchronization method capable of improving synchronization accuracy in a wireless network are provided. According to an embodiment, a sensor system includes a sensor, a transmission terminal, and a time information processing device. The transmission terminal includes an event signal generator, an event time determiner, a communication time determiner, and a communicator. The event signal generator detects the occurrence of an event on the basis of a physical quantity detected by the sensor. The event time determiner determines a detection time of the event. The communication time determiner determines a transmission time at the time of transmission to the time information processing device. The communicator transmits time information to the time information processing device. The time information processing device includes a reception time determiner and a time information processor. The reception time determiner determines a reception time of the time information transmitted from the transmission terminal. The time information processor performs a process based on a plurality of transmission times and a plurality of reception times. | 2021-01-14 |
20210013982 | RADIO COMMUNICATION DEVICE AND RESPONSE SIGNAL SPREADING METHOD - A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference. | 2021-01-14 |
20210013983 | COMMUNICATION APPARATUS AND REFERENCE SIGNAL RECEIVING METHOD - Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit ( | 2021-01-14 |
20210013984 | ACCESSING A CELL UTILIZING A MULTIPLE BEAM NETWORK - Methods are disclosed which can be performed by a network node for sending to a wireless device a first synchronization signal and an associated information message, for synchronization of the wireless device with the network node. The network node and the wireless device operate in a wireless communications network. The network node sends the first synchronization signal in N OFDM symbols within a subframe, at least once in a time and frequency position in every one of the N OFDM symbols. N is equal or larger than 2. For each sending of the first synchronization signal, the network node sends an associated information message at a pre-defined time and frequency position in an OFDM symbol. The pre-defined time and frequency position is relative to the time and frequency position of the first synchronization signal. The associated information message is associated with the first synchronization signal. | 2021-01-14 |
20210013985 | OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION METHOD - An optical transmission system includes a plurality of transmission paths that transmit a mode multiplexing signal, and one or more mode permutation units provided between the transmission paths. The mode permutation unit performs mode permutation to interchange modes to be used between at least some optical signals among respective optical signals of a plurality of types of modes that are multiplexed to the mode multiplexing signal input from the transmission path on an input side, and outputs the mode multiplexing signal subjected to the mode permutation to the transmission path on an output side. | 2021-01-14 |