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公开(公告)号：US12132543B2
公开(公告)日：2024-10-29
申请号：US18050922
申请日：2022-10-28
发明人： Daniel C Chisu , Armin W Klomsdorf
CPC分类号： H04B7/06
摘要： A communication device, method, and computer program product reduce power consumption when one or more transmit chains can be inactivated without unsatisfactory uplink communication quality in single data layer transmit diversity (TxDiv) or multiple input multiple output (MIMO) mode. The communication device monitors uplink signal quality of the uplink data stream while connected in single layer mode to a base node using multiple transmit chains. The controller device deactivates transmit chain(s) while the uplink signal quality remains satisfactory. The controller re-activates the inactivated transmit chain(s) in response to the uplink signal quality becoming unsatisfactory.
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公开(公告)号：US12088441B2
公开(公告)日：2024-09-10
申请号：US18149246
申请日：2023-01-03
发明人： Duane Younkin
CPC分类号： H04L27/127 , H04L27/2657
摘要： Systems and methods disclosed herein include a correction circuit. The correction circuit may include signal conditioning circuitry that is configured to condition a received reference signal. The correction circuit may include a filter that is configured to filter the conditioned signal received from the signal conditioning circuitry. The correction circuit may include phase detector circuitry that is configured to generate at least one output signal based on measuring a phase shift between a received plurality of input signals. At least one of the plurality of input signals may include the conditioned signal received from the filter.
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公开(公告)号：US20240291700A1
公开(公告)日：2024-08-29
申请号：US18568492
申请日：2022-06-09
发明人： Ola BRUSET
CPC分类号： H04L27/12 , H04L27/16 , H04W52/0235
摘要： According to an aspect, there is provided a method for transmitting a low-power radio signal, comprising: transmitting, by a radio device, a data radio signal by using binary frequency-shift-keying modulation introducing a phase change between consecutive bit intervals in the data radio signal; and transmitting, by the radio device, a wake-up radio signal using the binary frequency-shift-keying modulation where repetition coding is applied before the frequency-shift-keying to eliminate the phase change between consecutive bit intervals in the wake-up radio signal.
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公开(公告)号：US12034656B1
公开(公告)日：2024-07-09
申请号：US17988827
申请日：2022-11-17
申请人： GOLBA LLC
发明人： Mehran Moshfeghi
IPC分类号： H04L5/00 , H04B1/40 , H04B7/024 , H04B7/0408 , H04B7/0413 , H04B7/0426 , H04B7/06 , H04B7/08 , H04L27/12 , H04W4/80 , H04W24/08 , H04W72/044 , H04W72/0453 , H04W72/542 , H04W88/02 , H04W88/06 , H04W84/12
CPC分类号： H04L5/0032 , H04B1/40 , H04B7/024 , H04B7/0408 , H04B7/0413 , H04B7/043 , H04B7/0689 , H04B7/0897 , H04L27/12 , H04W4/80 , H04W24/08 , H04W72/0453 , H04W72/046 , H04W72/0473 , H04W72/542 , H04W88/02 , H04W88/06 , H04W84/12 , Y02D30/70
摘要： A device that comprises a plurality of distributed transceivers, a central processor and a network management engine may be configured to function as relay device, relaying an input signal from a source device to at least one other device. The relaying may include configuring one or more of the plurality of distributed transceivers to particular mode of relay operation and receiving the input signal from the source device via at least one of the configured one or more of the plurality of distributed transceivers. The relaying may also include transmitting at least one relay signal corresponding to the input data stream to the at least one other device, via at least one of the configured one or more of the plurality of distributed transceivers. The transceivers are configured based on at least one of measured power of the input signal or a distance between the device and the other device.
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公开(公告)号：US12009953B1
公开(公告)日：2024-06-11
申请号：US18408621
申请日：2024-01-10
发明人： Zhongli Yi , Shanshan Wang , Weichang Wang , Shengli Liu , Fuzhai Wang , Xinrui Zheng , Xuege Yang
CPC分类号： H04L27/0014 , H04L27/06 , H04L27/12 , H04L2027/0026
摘要： A method for processing an automatic identification system (AIS) baseband signal based on a field-programmable gate array (FPGA) is provided. A signal output by a bus is cached in a message buffer and then sent to a Gaussian filtered minimum shift keying (GMSK) modulator after being encoded by a frame encoder. Another signal output by the bus is processed by an AIS access control module and then also sent to the GMSK modulator. The two signals output by the bus are respectively output to two digital to analog converters (DACs) after being modulated by the GMSK modulator; a digital signal is converted into an analog signal, and the analog signal is sent to an I/Q or two-point modulation radio frequency (RF) circuit. Two received baseband signals are respectively input into analog to digital converters (ADCs) and separately sent to the bus.
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公开(公告)号：US11942688B2
公开(公告)日：2024-03-26
申请号：US18105559
申请日：2023-02-03
CPC分类号： H01Q17/008 , H01Q21/061
摘要： A radio frequency (RF) aperture includes an array of electrically conductive tapered projections arranged to define a curved aperture surface, such as a semi-cylinder aperture surface, or a cylinder aperture surface (which may be constructed as two semi-circular aperture surfaces mutually arranged to define the cylinder aperture surface). The RF aperture may further include a top array of electrically conductive tapered projections arranged to define a top aperture surface. The top aperture surface may be planar, and a cylinder axis of cylinder aperture surface may be perpendicular to the plane of the planar top aperture surface. The RF aperture may further include baluns mounted on at least one printed circuit board, each having a balanced port electrically connected with two neighboring electrically conductive tapered projections of the array and further having an unbalanced port.
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公开(公告)号：US11936574B2
公开(公告)日：2024-03-19
申请号：US18083756
申请日：2022-12-19
申请人： GOLBA LLC
发明人： Mehran Moshfeghi
IPC分类号： H04L5/00 , H04B1/40 , H04B7/024 , H04B7/0408 , H04B7/0413 , H04B7/0426 , H04B7/06 , H04B7/08 , H04L27/12 , H04W4/80 , H04W24/08 , H04W72/044 , H04W72/0453 , H04W72/542 , H04W88/02 , H04W88/06 , H04W84/12
CPC分类号： H04L5/0032 , H04B1/40 , H04B7/024 , H04B7/0408 , H04B7/0413 , H04B7/043 , H04B7/0689 , H04B7/0897 , H04L27/12 , H04W4/80 , H04W24/08 , H04W72/0453 , H04W72/046 , H04W72/0473 , H04W72/542 , H04W88/02 , H04W88/06 , H04W84/12 , Y02D30/70
摘要： A system comprising a relay device that configures to a first beamforming setting for a first set of antenna arrays to establish a first link between the relay device and a source device, and a second beamforming setting to establish a second link between the relay device and a destination device. A data stream is processed based on a selection of one of a passive mode or an active mode of relay operation. In the passive mode, a received radio frequency waveform of the data stream is down-converted to an intermediate frequency waveform, re-amplified, and then up-converted for transmission without requiring any data demodulation, and in the active mode, the IF waveform is demodulated and then remodulated for the transmission. The data stream is forwarded to the destination device through the second link based on the selection of one of the passive or active mode.
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8.发明授权公开(公告)号：US11910322B2
公开(公告)日：2024-02-20
申请号：US17413244
申请日：2018-12-13
发明人： Henrik Sjöland , Leif Wilhelmsson
CPC分类号： H04W52/0235 , H04L27/12 , H04L27/14
摘要： A limited-function, low-power wakeup receiver is based on frequency shift keying (FSK), avoiding the inherent problems of AM demodulation such as non-linearity of the amplitude detector. The FSK detector is easily realized in the digital domain. Due to the time discrete nature of FSK signals, the detector has a periodic response in frequency, allowing the signal to be demodulated at different offsets from the center frequency. The relaxed accuracy demands on the local oscillator frequency avoid the need for a power-hungry phase locked loop (PLL) circuit. To avoid potential loss if a signal coincides with one of the regular sensitivity nulls, the network at least occasionally transmits an FSK wakeup signal at a slightly shifted frequency, so at least one of the FSK wakeup signals will be received. Transmitting multiple frequency-shifted signals improves the likelihood of reception.
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公开(公告)号：US11909849B2
公开(公告)日：2024-02-20
申请号：US16556593
申请日：2019-08-30
发明人： Lorenzo Guerrieri , Angelo Poloni , Edoardo Lauri
CPC分类号： H04L69/18 , H04L27/0012 , H04L27/12 , H04L27/2643 , H04L27/2666 , H04B2203/5408
摘要： A communication circuit supports a first communication protocol and a second communication protocol that is different from the first communication protocol. A number of signals include first signals conveying first information messages and second signals conveying second information messages. The first information messages include a repetitive message having fixed repeated content and the second information messages include a non-repetitive message having variable content. The first signals and the second signals are transmitted via the communication circuit using the first communication protocol for the first signals and the second communication protocol for the second signals.
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公开(公告)号：US20240039771A1
公开(公告)日：2024-02-01
申请号：US18377282
申请日：2023-10-05
发明人： Delai ZHENG , Zhuoqun LI
CPC分类号： H04L27/106 , H04L27/12 , H04L27/14
摘要： A receiving method based on multiple frequency-shift keying (M-FSK) modulation. The method comprises performing M-FSK demodulation on a frame structure comprising a preamble frame, a SYNC frame, and a data frame. The performing comprises: performing the M-FSK demodulation of the preamble frame using an autocorrelation time-frequency synchronization technology; performing the M-FSK demodulation of the preamble frame using a time-frequency synchronization technology using cross-correlation sliding fast Fourier transform (FFT); and performing the M-FSK demodulation of at least one of the SYNC frame or the data frame using an M-FSK data demodulation technology using adaptive and scalable FFT.
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