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公开(公告)号：US11777539B2
公开(公告)日：2023-10-03
申请号：US16669448
申请日：2019-10-30
发明人： Amir Dov Eliaz , Nir Stahl Diskin , Daniel Stopler , Rohit Gaikwad , Vinko Erceg , Peyush Agarwal , Rana A. Abdelaal , Hyoung Keun Ryu
CPC分类号： H04B1/0475 , H03F3/24 , H04W52/0261 , H04B2001/0408
摘要： A transmit power optimization and rate-control system includes a transmitter circuit having one or more power amplifiers transmit radio-frequency (RF) signals at a transmission (Tx) rate and a Tx power level. A receiver circuit receives RF signals, decodes the received RF signals and provides one or more Tx status feedbacks. A rate-control module adjusts the Tx rate based at least on a channel condition. A probing engine generates at least two consecutive frames at a first Tx power level, and a second Tx power level in response to a trigger causes the transmitter to transmit the at least two consecutive frames, and processes respective Tx status feedbacks received in response to transmission of the two consecutive frames in order to optimize the Tx power of the transmitter.
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公开(公告)号：US11451283B2
公开(公告)日：2022-09-20
申请号：US17306826
申请日：2021-05-03
发明人： Roy Oren , Daniel Stopler , Shimon Benjo
IPC分类号： H04B7/06
摘要： A method for channel smoothing with transmit beamforming includes transmitting, by a first device, a non-data-packet (NDP) frame to a second device. The method also includes receiving, by the second device, the NDP frame and transmitting a compressed report to the first device. The method further includes receiving, by the first device, the compressed report and deriving a first beamforming matrix from the compressed report. A second beamforming matrix is generated employing a processing known to the second device, and a data frame is transmitted to the second device using the second beamforming matrix.
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公开(公告)号：US10367671B2
公开(公告)日：2019-07-30
申请号：US15824146
申请日：2017-11-28
发明人： Dengwei Fu , Colin Fraser , Amir Eliaz , Daniel Stopler , Sandeep Shenoy
摘要： High peak-to-average ratio of OFDM signals requires large back-off from an RF power amplifier's saturation power. A spectral shaper device therefore increases the output power and efficiency of the power amplifier. The shaper device performs linearization through digital predistortion, based on an out-of-band regrowth limit, as well as the EVM requirement for a particular data rate. The shaper can distribute the error energy, precisely, over frequencies such that each of the inband and out-of-band requirements is independently and individually met. The shaper distributes error energy to frequency regions in the spectrum to the maximally allowed by the standards and regulations, while not increasing the total error. The error energy is kept to the minimum where it is crucial in meeting EVM requirements. In this way, the shaper maximizes the allowable output power of the nonlinear power amplifier.
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公开(公告)号：US10361808B2
公开(公告)日：2019-07-23
申请号：US15340571
申请日：2016-11-01
发明人： Amir Eliaz , Ilan Reuven , Daniel Stopler , Roy Oren , Shimon Benjo
摘要： A device includes circuitry configured to determine one or more signal processing capabilities of another device in communication with the device. The device configures a signal compression mode of the device to correspond to a first signal compression mode of a plurality signal compression modes based on the one or more signal processing capabilities of the other device. The device s configured to modify, in response to detecting variations in one or more network configuration properties or the one or more signal processing capabilities of the other device, the signal compression mode of the device.
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公开(公告)号：US20190165981A1
公开(公告)日：2019-05-30
申请号：US15824146
申请日：2017-11-28
发明人： Dengwei FU , Colin Fraser , Amir Eliaz , Daniel Stopler , Sandeep Shenoy
CPC分类号： H04L27/2628 , H04B1/04 , H04B2001/0408 , H04L25/03834 , H04L27/2624
摘要： High peak-to-average ratio of OFDM signals requires large back-off from an RF power amplifier's saturation power. A spectral shaper device therefore increases the output power and efficiency of the power amplifier. The shaper device performs linearization through digital predistortion, based on an out-of-band regrowth limit, as well as the EVM requirement for a particular data rate. The shaper can distribute the error energy, precisely, over frequencies such that each of the inband and out-of-band requirements is independently and individually met. The shaper distributes error energy to frequency regions in the spectrum to the maximally allowed by the standards and regulations, while not increasing the total error. The error energy is kept to the minimum where it is crucial in meeting EVM requirements. In this way, the shaper maximizes the allowable output power of the nonlinear power amplifier.
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公开(公告)号：US20210367653A1
公开(公告)日：2021-11-25
申请号：US17306826
申请日：2021-05-03
发明人： Roy OREN , Daniel Stopler , Shimon Benjo
IPC分类号： H04B7/06
摘要： A method for channel smoothing with transmit beamforming includes transmitting, by a first device, a non-data-packet (NDP) frame to a second device. The method also includes receiving, by the second device, the NDP frame and transmitting a compressed report to the first device. The method further includes receiving, by the first device, the compressed report and deriving a first beamforming matrix from the compressed report. A second beamforming matrix is generated employing a processing known to the second device, and a data frame is transmitted to the second device using the second beamforming matrix.
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