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1. 发明授权

US12019098B2 Pattern acquisitions in equivalent time sampling systems 有权
公开(公告)号：US12019098B2
公开(公告)日：2024-06-25
申请号：US16883755
申请日：2020-05-26
申请人： Tektronix, Inc.
发明人： Noah Brummer , Andy K. Lim , Jan P. Peeters Weem
IPC分类号： G01R13/34 , G01R13/02 , H04L27/233
CPC分类号： G01R13/345 , G01R13/0272 , H04L27/233
摘要： An equivalent-time sampling test and measurement instrument for acquiring a repeating pattern signal under test at or near a maximum sampling speed of the test and measurement instrument. The test and measurement instrument includes a first input configured to receive repeating pattern information about a signal under test, a second input configured to receive the signal under test, one or more processors configured to determine an optimized trigger holdoff period that is set based on a minimum trigger holdoff period of a test and measurement instrument, and an acquisition unit configured to acquire a portion of the signal under test every optimized trigger holdoff period.

2. 发明授权

US12003277B2 Method for transmitting or receiving signal in low-bit quantization system and device therefor 有权
公开(公告)号：US12003277B2
公开(公告)日：2024-06-04
申请号：US17637420
申请日：2019-08-20
申请人： LG ELECTRONICS INC.
发明人： Sangrim Lee , Byounghoon Kim , Sungjin Kim
IPC分类号： H04B10/556 , G06N3/049 , H04B10/67 , H04L27/233
CPC分类号： H04B10/5561 , G06N3/049 , H04B10/677 , H04L27/233
摘要： The present disclosure relates to a method for transmitting or receiving a signal by a reception device in a wireless communication system, and the method may comprise the steps of: receiving, from a transmission device, a signal modulated on the basis of a differential phase shift keying (DPSK) scheme; converting the received signal into an input signal of a spiking neural network (SNN); calculating an output value through the spiking neural network previously learned; and converting the output value into an input signal of a channel decoder.

3. 发明授权

US11991033B2 Systems and methods for phase noise tracking reference signal sequence generation using demodulation reference signals 有权
公开(公告)号：US11991033B2
公开(公告)日：2024-05-21
申请号：US18132493
申请日：2023-04-10
申请人： Telefonaktiebolaget LM Ericsson (PUBL)
发明人： Martin Hessler , Robert Baldemair , Lars Lindbom , Henrik Sahlin , Niclas Wiberg
IPC分类号： H04L27/26 , H04L5/00 , H04L27/233
CPC分类号： H04L27/2613 , H04L5/001 , H04L5/0051 , H04L27/2332 , H04L27/2607 , H04L27/2675 , H04L5/0007
摘要： A user equipment (910) is provided for use in a cellular network. The user equipment includes a transceiver (1010), a processor (1020), and a memory (1030). The user equipment (910) is configured to determine, for a data transmission, a mapping form a demodulation reference signal (DMRS) to a PNT-RS. A DMRS resulting signal is generated from a subset of DMRS for a first resource element in a subcarrier. The DMRS resulting signal is copied from the first resource element to a second resource element assigned to the PNT-RS in the subcarrier. The data transmission is transmitted using the DMRS resulting signal and the PNT-RS.

4. 发明授权

US11968065B1 Methods and apparatus for receiving a user message in a communication network 有权
公开(公告)号：US11968065B1
公开(公告)日：2024-04-23
申请号：US17326092
申请日：2021-05-20
申请人： Marvell Asia Pte, Ltd.
发明人： Hyun Soo Cheon
IPC分类号： H04L27/233 , H04B1/10
CPC分类号： H04L27/2338 , H04B1/1018
摘要： Methods and apparatus for receiving a user message in a communication network are disclosed. In an exemplary embodiment, a method includes receiving data samples in an uplink transmission from user equipment, performing preamble detection on the data samples, generating a trigger signal that indicates when a preamble is detected, and decoding a user message in response to the trigger signal, wherein the user message follows the detected preamble.

5. 发明授权

US11863362B2 Matched filter bank 有权
公开(公告)号：US11863362B2
公开(公告)日：2024-01-02
申请号：US17988602
申请日：2022-11-16
申请人： Nordic Semiconductor ASA
发明人： Daniel Ryan , Wei Li
IPC分类号： H03H11/02 , H04L27/233 , H03H17/02 , H04L27/26
CPC分类号： H04L27/2334 , H03H17/0254 , H04L27/2338 , H04L27/2671
摘要： A radio receiver comprises a matched filter bank and a decision unit. The matched filter bank has a plurality of filter modules for generating correlation-strength data from a sampled radio signal, each filter module being configured to cross-correlate the sampled signal with data representing a respective filter sequence. The decision unit is configured to use the correlation-strength data to generate a sequence of decoded symbols from the sampled signal. The matched filter bank and/or decision unit are configured to determine the value of each symbol in the sequence in part based on the value of a respective earlier decoded symbol from the sequence of decoded symbols.

6. 发明公开

US20230155868A1 SIGNAL SPECIFICATION IDENTIFICATION APPARATUS, CONTROL CIRCUIT, AND PROGRAM STORAGE MEDIUM 审中-公开
公开(公告)号：US20230155868A1
公开(公告)日：2023-05-18
申请号：US18150353
申请日：2023-01-05
申请人： Mitsubishi Electric Corporation
发明人： Yasutaka Yamashita , Shigeru Uchida
IPC分类号： H04L27/233 , H04L27/34
CPC分类号： H04L27/2338 , H04L27/345 , H04L27/3818
摘要： A signal specification identification apparatus includes processing circuitry that estimates the transmission rate of a received signal, performs sampling frequency conversion on the received signal, calculates a probability corresponding to each of a plurality of candidates for a specification of the received signal, selects a candidate using the respective probabilities, and calculates reliability corresponding to a selected candidate, determines whether to output the selected candidate as an identification result or perform the sampling frequency conversion again, based on the reliability, and changes a parameter indicating the ratio of the sampling frequency conversion when it is determined that the sampling frequency conversion is to be performed again. Processing is repeated until the processing circuitry determines that the selected candidate as the identification result is to be output.

7. 发明授权

US11606239B2 Non-coherent waveforms for wireless communication 有权
公开(公告)号：US11606239B2
公开(公告)日：2023-03-14
申请号：US17071576
申请日：2020-10-15
申请人： QUALCOMM Incorporated
发明人： Shay Landis , Assaf Touboul , Amit Bar-Or Tillinger , Gideon Shlomo Kutz , Michael Levitsky , Guy Wolf
IPC分类号： H04B7/0456 , H04L27/26 , H04L27/20 , H04L27/04 , H04L5/00 , H04W72/0446 , H04B7/06 , H04L1/00 , H04L27/233 , H03M7/30 , H04J13/00
摘要： In one aspect, performing, by a wireless communication device, a non-coherent encoding operation on first data to generate a first transmission, wherein the non-coherent encoding operation encodes data independent of channel state information (CSI); and transmitting, by the wireless communication device, the first transmission, wherein the first transmission is non-coherently encoded. In another aspect, receiving, by a wireless communication device, a first transmission, wherein the first transmission is non-coherently encoded independent of channel state information (CSI); and performing, by the wireless communication device, a non-coherent decoding operation on the first transmission to decode the first transmission. Other aspects and features are also claimed and described.

8. 发明申请

US20230072942A1 MATCHED FILTER BANK 有权
公开(公告)号：US20230072942A1
公开(公告)日：2023-03-09
申请号：US17988602
申请日：2022-11-16
申请人： Nordic Semiconductor ASA
发明人： Daniel RYAN , Wei LI
IPC分类号： H04L27/233 , H03H17/02 , H04L27/26
摘要： A radio receiver comprises a matched filter bank and a decision unit. The matched filter bank has a plurality of filter modules for generating correlation-strength data from a sampled radio signal, each filter module being configured to cross-correlate the sampled signal with data representing a respective filter sequence. The decision unit is configured to use the correlation-strength data to generate a sequence of decoded symbols from the sampled signal. The matched filter bank and/or decision unit are configured to determine the value of each symbol in the sequence in part based on the value of a respective earlier decoded symbol from the sequence of decoded symbols.

9. 发明申请

US20220417067A1 Phase Modulated Data Link for Low-Swing Wireline Applications 有权
公开(公告)号：US20220417067A1
公开(公告)日：2022-12-29
申请号：US17852922
申请日：2022-06-29
申请人： Rambus Inc.
发明人： Masum Hossain , Richelle L. Smith , Carl W. Werner
IPC分类号： H04L27/233 , H04L27/34 , H04L27/20
摘要： A communication system comprises a transmitter and a receiver that communicate differential phase modulated data over a wireline channel pair. The transmitter encodes data symbols by generating first and second data signals with differentially phase shifted signal transitions with respect to one another. The receiver receives the first data signal and the second data signal and samples the first data signal based on a signal transition timing of the second data signal to generate a first output data symbol. The receiver furthermore samples the second data signal based on signal transition timing of the first data signal to generate a second output data symbol.

10. 发明授权

US11516055B2 Error retro-propagation for a chain for the blind demodulation of a digital telecommunication signal 有权
公开(公告)号：US11516055B2
公开(公告)日：2022-11-29
申请号：US16957562
申请日：2018-12-21
申请人： Avantix
发明人： Thomas Courtat
IPC分类号： H04L27/233 , G06N3/04 , G06N3/063 , G06N3/08 , H04L25/03 , H04L27/00 , H04L27/38
摘要： The present invention concerns a real-time method for the blind demodulation of digital telecommunication signals, based on the observation of a sampled version of this signal. The method comprises the following steps: —acquisition, by a sampling, of a first plurality of signals in order to each constitute an input of a network of L processing blocks (G, F, H), also referred to here as “specialized neurons”, each neuron being simulated by the outputs of the preceding block, the first plurality of signals being input into the first block simulating a first neuron of the network in order to generate a plurality of outputs of the first block; each neuron F being simulated by the outputs of an upstream chain G and stimulating a downstream chain H; each set of samples passes through the same processing chain; —the outputs of the last blocks of the network ideally correspond to the demodulated symbols; —addition of a nonlinearity to each of the outputs of the last block of the network making it possible to calculate an error signal and propagation of this error in the reverse direction of the processing chain (“retropropagation”); —estimation, upon receipt of the error by each neuron (i), of a corrective term δθi and updating, in each block, of the value of the parameter θi according to θi+=δθi.

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