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公开(公告)号：US12132600B2
公开(公告)日：2024-10-29
申请号：US17707845
申请日：2022-03-29
发明人： Amit Bar-Or Tillinger , Assaf Touboul , Shay Landis , Idan Michael Horn , Michael Levitsky , Daniel Paz
CPC分类号： H04L27/36 , H04L27/3405 , H04L27/38
摘要： This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for determining a constellation configuration for an amplitude phase shift keying (APSK) modulation scheme. The constellation configuration may be based on communication impairment information that is indicative of at least one communication impairment expected to impair a single-carrier waveform communication. Examples of communication impairments may include additive white gaussian noise (AWGN), phase noise, non-linear distortion, or any combination thereof, among other examples. Examples of a constellation configuration may include a quantity of rings in a constellation pattern associated with the APSK modulation scheme, a quantity of constellation points associated the rings, a ring radius associated with one or more rings, a phase offset to one or more rings, and a mapping of data bits to one or more constellation points, among other examples.
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公开(公告)号：US12132262B2
公开(公告)日：2024-10-29
申请号：US17716888
申请日：2022-04-08
发明人： Aidan Smyth , Kiran Uln , Victor Simileysky , Zhuohui Zhang
CPC分类号： H01Q21/24 , H01Q3/2605 , H04L27/362
摘要： An example method of estimating the angular resolution of antenna array comprises: receiving a plurality of values of magnitude and phase of a radio frequency (RF) signal for each antenna element of a plurality of antenna elements comprised by an antenna array; performing, by a machine learning model, a feature extraction operation to transform the plurality of values of magnitude and phase into a plurality of data points in a reduced-dimension space; clustering, by the machine learning model, the plurality of data points into a plurality of clusters; and computing, based on the clustered data points, an angular resolution value for the antenna array.
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公开(公告)号：US20240348485A1
公开(公告)日：2024-10-17
申请号：US18754078
申请日：2024-06-25
IPC分类号： H04L27/26 , H04L1/00 , H04L1/08 , H04L1/1607 , H04L1/1809 , H04L1/20 , H04L27/02 , H04L27/34 , H04L27/36 , H04W28/04
CPC分类号： H04L27/2691 , H04L1/0003 , H04L1/0019 , H04L1/0045 , H04L1/0047 , H04L1/0061 , H04L1/08 , H04L1/1607 , H04L1/1809 , H04L1/20 , H04L1/201 , H04L1/206 , H04L27/02 , H04L27/2614 , H04L27/34 , H04L27/364 , H04W28/04
摘要： In 5G-Advanced, and especially 6G, message faulting is expected to be a major impediment due to phase noise and increased pathloss attenuation, as well as network crowding. Therefore, new procedures are disclosed enabling the receiver to identify and correct message faults without a retransmission and without using bulky FEC (forward error correction) bits. For example, the receiver can measure the “distance” of each received message element from the nearest modulation state, and thereby quantify the modulation quality, or suspiciousness, of each message element. To correct the message, the worst-modulated ones can be altered first, generally selecting the next-closest states since small distortions are more likely than large distortions. The result: rapid message recovery, internal to the receiver processor, without adding to the message size or the latency.
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公开(公告)号：US20240348484A1
公开(公告)日：2024-10-17
申请号：US18751270
申请日：2024-06-23
IPC分类号： H04L27/26 , H04L1/00 , H04L1/08 , H04L1/1607 , H04L1/1809 , H04L1/20 , H04L27/02 , H04L27/34 , H04L27/36 , H04W28/04
CPC分类号： H04L27/2691 , H04L1/0003 , H04L1/0019 , H04L1/0045 , H04L1/0047 , H04L1/0061 , H04L1/08 , H04L1/1607 , H04L1/1809 , H04L1/20 , H04L1/201 , H04L1/206 , H04L27/02 , H04L27/2614 , H04L27/34 , H04L27/364 , H04W28/04
摘要： In 5G-Advanced and especially 6G, a primary concern is the increase in message faulting due to higher pathloss and phase noise at FR2 frequencies. Current methods for dealing with faults include packing the message with bulky error-correction (FEC) bits which are often ineffective, or automatically requesting a costly retransmission. As a substantially better alternative, the receiver may identify the specific fault locations and attempt an immediate repair by testing the modulation quality of each message element. For example, for a QAM-modulated message, the receiver can measure the I and Q branch deviations relative to predetermined levels, and the message element(s) with largest deviations is/are likely faulted. Alternatively, if the message is advantageously modulated according to the waveform amplitude and phase, the receiver can determine the amplitude and phase deviations relative to predetermined values. An AI model can greatly assist in the fault localization and in finding the corrected values.
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公开(公告)号：US12113368B1
公开(公告)日：2024-10-08
申请号：US18698052
申请日：2022-08-31
申请人： SoftBank Corp.
CPC分类号： H02J50/20 , H02J50/80 , H04L27/0008 , H04L27/361 , H04W72/0446
摘要： Provided is a system comprising a base station and a terminal apparatus that communicate with each other by selectively using plural radio resources, which is capable of supplying a power to the terminal apparatus using a communication-unused radio resource between the base station and the terminal apparatus. The base station generates a transmission signal including a dummy signal for wireless power transfer using a communication-unused radio resource that is not used for communication among plural radio resources, and transmits the generated transmission signal to the terminal apparatus. The terminal apparatus receives the transmission signal including the dummy signal transmitted from the base station, and outputs an electric power of the reception signal as a reception power. A battery may be charged using the reception power.
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公开(公告)号：US20240333312A1
公开(公告)日：2024-10-03
申请号：US18740416
申请日：2024-06-11
申请人： MaxLinear, Inc.
发明人： Rainer Strobel , Vladimir Oksman
CPC分类号： H03M13/2906 , H03M13/1102 , H03M13/1515 , H03M13/152 , H04L1/0041 , H04L1/0057 , H04L27/36 , H04L27/38 , H04L12/2801
摘要： A multi-carrier transmitter apparatus is disclosed. The apparatus includes an outer encoder, a shell mapper and an inner encoder. The outer encoder is configured to receive a signal, perform error correction using an outer code on the received signal and generate an outer encoder signal. The shell mapper is configured to perform constellation shaping on a subset of bits from the outer encoder signal and generate one or more constellation shaping bits. The inner encoder is configured to perform inner error correction/encoding using an inner code on a second subset of bits from the outer encoder signal and generate an inner correction signal.
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公开(公告)号：US20240305245A1
公开(公告)日：2024-09-12
申请号：US18257129
申请日：2021-12-13
申请人： Raptor Data Limited
发明人： Colin Sinclair , Ibrahim Budiarjo
摘要： Apparatus for downconverting a received frequency modulated communication signal is provided. The apparatus comprises processing circuitry to: obtain first digital frequency domain data based on the received frequency modulated communication signal; process the first digital frequency domain data in the frequency domain to provide downconverted digital frequency domain data, wherein the processing is to comprise frequency shifting data based on at least a portion of the first digital frequency domain data, wherein the downconverted digital frequency domain data has fewer data points than the first digital frequency domain data; and convert the downconverted digital frequency domain data into the time domain.
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公开(公告)号：US12074736B2
公开(公告)日：2024-08-27
申请号：US18006126
申请日：2020-07-20
发明人： Yunji Zheng , Haiying Krishna Cao
CPC分类号： H04L25/03343 , H04B1/04 , H04L27/36 , H04B2001/0425
摘要： A radio transmitter and a method therefor are disclosed. According to an embodiment, the radio transmitter comprises a first power amplifier (PA) corresponding to a first antenna port, an observation receiver, a first determination module, a first pre-distortion module, one or more second PA each corresponding to a second antenna port, one or more second determination module and one or more second pre-distortion module. The first determination module is configured to determine a first function reflecting a nonlinearity of the first PA, based on a first input signal to the first PA, an observation signal from the observation receiver and a first set of parameters characterizing the first PA. The first pre-distortion module is configured to determine and apply a first pre-distortion to a first baseband signal for the first antenna port. Each second determination module is configured to determine a second function reflecting a nonlinearity of the second PA, based on the first function and a difference between a second set of parameters characterizing the second PA and the first set of parameters. Each second pre-distortion module is configured to determine a second pre-distortion based on the second function and apply the second pre-distortion to a second baseband signal for the second antenna port.
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公开(公告)号：US20240284471A1
公开(公告)日：2024-08-22
申请号：US18652388
申请日：2024-05-01
CPC分类号： H04W72/23 , H04L1/0004 , H04L1/0009 , H04L5/0048 , H04L27/36
摘要： Methods, systems, and devices for wireless communications are described for indicating modulation order and code rate for transmissions between a user equipment (UE) and a base station. The base station may configure one or more parameter tables that provide mapping between a modulation and coding scheme (MCS) index and the modulation order and code rate. The one or more tables may be explicitly indicated in configuration signaling, may be configured based on a frequency range for communications or a reference signal configuration, or any combinations thereof. The base station may transmit control information to the UE that indicates the MCS index value and that indicates a first table of multiple configured tables is to be used to determine the modulation order and code rate.
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公开(公告)号：US20240275661A1
公开(公告)日：2024-08-15
申请号：US18645110
申请日：2024-04-24
CPC分类号： H04L27/3872 , H04L25/03006 , H04L27/36
摘要： In 5G-Advanced and 6G, due to the higher frequencies involved, phase noise is expected to be a major source of faults. Disclosed herein is a small (single resource element) phase-tracking reference signal that also provides an updated amplitude calibration. The compact phase-tracking reference signal, in QAM, includes a first branch at a maximum amplitude and an orthogonal second branch at either the maximum amplitude or zero amplitude, as transmitted. The receiver can readily determine a phase rotation angle according to a ratio of the two branch amplitudes, and also an amplitude calibration according to the vector magnitude of the received branches, thereby negating both amplitude noise and phase noise.
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