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公开(公告)号：US12119888B2
公开(公告)日：2024-10-15
申请号：US18085565
申请日：2022-12-20
发明人： Jinqiang Xing
CPC分类号： H04B17/11 , H04B1/04 , H04B2001/0408
摘要： Embodiments of the present application provide a terminal calibration method, apparatus, device, and storage medium. The method includes: sending to a network device calibration capability information of a terminal device; receiving calibration configuration information which is determined by the network device based on the calibration capability information; and performing a calibration procedure according to the calibration configuration information.
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公开(公告)号：US20240333404A1
公开(公告)日：2024-10-03
申请号：US18191553
申请日：2023-03-28
CPC分类号： H04B17/11 , H04L1/0003 , H04W52/52
摘要： Real-time radio self-calibration may be provided. The self-calibration may begin by sampling a Transmission (TX) signal. An achievable Error Vector Magnitude (EVM) for one or more frames may be determined based on the TX signal. Link budgets for clients may be determined using a TX power and a supported Modulation and Coding Scheme (MCS). A per packet TX power is adjusted based on the achievable EVM and a TX retry rate. The PA linearity of the radio may also be adjusted based on the achievable EVM and the link budget. The client may be regrouped into a new MCS based on the link budget.
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公开(公告)号：US12052063B2
公开(公告)日：2024-07-30
申请号：US17746175
申请日：2022-05-17
发明人： James B. West , Connor C. McBryde
摘要： A system for calibrating ESAs calculates a taper based on ESA element coordinates, and stores the taper as a vector matrix of gain values. The gain values are normalized by accounting for known losses by measuring a central element at minimum attenuation. The normalized gain is then a reference for every other element in the array. The other elements are then measured at various attenuations to identify an attenuation to produce the desired gain. The measurements are performed according to a bisection algorithm. Attenuation may be embodied in a set of digital register values.
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公开(公告)号：US12050239B2
公开(公告)日：2024-07-30
申请号：US17736795
申请日：2022-05-04
申请人： Kymeta Corporation
发明人： Cagdas Varel , Steven H. Linn , Seyed Mohamad Amin Momeni Hasan Abadi , Hussein Esfahlani , Mohsen Sazegar , Ryan Stevenson
CPC分类号： G01R29/0814 , H04B17/11 , H04B17/21
摘要： Processes and apparatuses for antenna frequency matching are disclosed. In one embodiment, a calibration process for an antenna having radio-frequency (RF) radiating antenna elements comprises: determining resonance frequencies of RF radiating antenna elements in a group of RF radiating antenna elements; selecting voltages to apply to the RF radiating antenna elements to cause resonance frequencies to match between the RF radiating antenna elements in the group of RF radiating antenna elements when the voltages are applied; and storing, in memory of the antenna, voltage information indicative of the voltages for driving the RF radiating antenna elements in the group.
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公开(公告)号：US20240204889A1
公开(公告)日：2024-06-20
申请号：US18065388
申请日：2022-12-13
发明人： Aviv Regev , Ronen Shaked
CPC分类号： H04B17/11 , H04W72/51 , H04L2027/0016
摘要： An apparatus for wireless communication includes a memory and a processor coupled to the memory. The processor is configured to: receive one or more signals for determining frequency dependent in-phase quadrature imbalance (FDIQI) estimates; generate one or more FDIQI estimates based on the one or more signals; and transmit the one or more FDIQI estimates to a network node.
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6.发明公开公开(公告)号：US20240204836A1
公开(公告)日：2024-06-20
申请号：US18066988
申请日：2022-12-15
发明人： Vasanthan RAGHAVAN , Kobi RAVID , Junyi LI
CPC分类号： H04B7/0617 , H04B7/0634 , H04B17/11 , H04B17/21
摘要： Method and apparatus for sharing dynamic capability levels of calibration to other devices in a network. The apparatus transmits, to a second UE, a first calibration capability message indicating a first set of one or more levels of calibration capabilities. The apparatus performs an online calibration procedure with the second UE based at least on the first calibration capability message indicating the first set of one or more levels of the calibration capabilities. The apparatus may receive, from the second UE, a second calibration capability message associated with the second UE indicating a second set of one or more levels of the calibration capabilities for the second UE. The apparatus may transmit a beamforming loss indication indicating a loss in beamforming array gain with use of an uncalibrated amplitude or phase settings corresponding to at least one of an operating frequency, a temperature level, or a gain stage level.
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公开(公告)号：US11990931B2
公开(公告)日：2024-05-21
申请号：US17929750
申请日：2022-09-06
发明人： Yi-Shao Chang
摘要： A transceiver includes a RF modulator, a filter circuit, a control circuit and a first DC offset compensation circuit. During a first calibration period, the control circuit controls the filter circuit to be connected to the RF modulator with a first phase sequence, such that the RF modulator outputs a first radio frequency signal. During a second calibration period, the control circuit controls the filter circuit to be connected to the RF modulator with a second phase sequence, such that the RF modulator outputs a second radio frequency signal. The second phase sequence is inverted with the first phase sequence. The control circuit is further configured to calculate a first DC offset generated from the filter circuit, and to control the first DC offset compensation circuit to compensate the first DC offset generated from the filter circuit.
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公开(公告)号：US20240154705A1
公开(公告)日：2024-05-09
申请号：US18050321
申请日：2022-10-27
发明人： Vasanthan RAGHAVAN , Kobi RAVID , Junyi LI
IPC分类号： H04B17/11
CPC分类号： H04B17/11
摘要： A first wireless device and a second device may negotiate a configuration of an RF chain calibration process with each other. The configuration of the RF chain calibration process may include a number of calibration rounds. The second wireless device may exchange, in each calibration round in the number of calibration rounds, at least one RS and at least one feedback message with the first wireless device. The second wireless device may identify one or more calibration adjustment parameters for the second wireless device based on the RF chain calibration process. The second wireless device may communicate with another wireless device based on the one or more calibration adjustment parameters.
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公开(公告)号：US20240146423A1
公开(公告)日：2024-05-02
申请号：US18487158
申请日：2023-10-16
申请人： CACI, INC.- FEDERAL
CPC分类号： H04B17/11 , H04B17/104 , H04W56/0045
摘要： The present application at least describes a method for waveform synthesis. The method may include a step of transmitting a stimulus signal to a software defined radio (SDR) operating in a first state. The method may also include a step of receiving, via the SDR, an output signal based upon the transmitted stimulus signal. The method may also include a step of. determining, based upon the received output signal, a delay state of the SDR from a plurality of predetermined delay states of the SDR. The delay state may be associated with a parameter of the SDR. The parameter may include any one or more of a receive frequency, transmit frequency or bandwidth. The method may further include a step of generating a calibrated signal based upon the determined delay state. The method may even further include a step of sending the calibrated signal to the SDR to adjust a time.
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公开(公告)号：US20230379066A1
公开(公告)日：2023-11-23
申请号：US18163397
申请日：2023-02-02
申请人： Beijing ESWIN Computing Technology Co., Ltd. , Guangzhou Transa Semi Information Technology Co., Ltd.
发明人： Zhiyong Chen , Yangyang Li
摘要： Disclosed is a calibration circuit, a calibration method for a filter and a filter device. The calibration circuit includes: a signal receiving terminal, receiving an output signal from the filter; a frequency detection module, obtaining a count value according to the output signal, the count value representing a frequency of the output signal; an adjustment module, adjusting the control signal according to the count value and a target value representing a target frequency, to adjust the frequency of the output signal provided by the filter until a calibration value, which allows the count value to be consistent with the target value, of the control signal is determined. The filter performs filtering according to the control signal with the calibration value in an operating stage. The calibration circuit performs feedback adjustment on the filter to achieve bandwidth calibration with high calibration accuracy and simple circuit structure.
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