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公开(公告)号：US20160173153A1
公开(公告)日：2016-06-16
申请号：US15050537
申请日：2016-02-23
Applicant: MaxLinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
CPC classification number: H04B1/1027 , H01Q19/13 , H01Q19/18 , H01Q25/005 , H04B1/1081 , H04B1/123 , H04L25/03057
Abstract: A first microwave backhaul assembly comprises a first antenna, a front-end circuit, an inter-backhaul-assembly interface circuit, and an interference cancellation circuit. The first antenna is operable to receive a first microwave signal. The front-end circuit is operable to convert the first microwave signal to a lower-frequency digital signal, wherein the lower-frequency digital signal has energy of a second microwave signal and energy of a third microwave signal. The inter-backhaul-assembly interface circuit is operable to receive information from a second microwave backhaul assembly. The interference cancellation circuit is operable to use the information received via the inter-backhaul-assembly interface circuit during processing of the lower-frequency digital signal to remove, from the first microwave signal, the energy of the third microwave signal. The information received via the inter-backhaul-assembly interface may comprise a signal having energy of the second microwave signal.
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公开(公告)号：US20190068227A1
公开(公告)日：2019-02-28
申请号：US16171463
申请日：2018-10-26
Applicant: Maxlinear, Inc.
Inventor： Subramanian Anantharaman Chandrasekarapuram , Anand Anandakumar , Stephane Laurent-Michel , Sheng Ye , Raja Pullela , Glenn Chang , Vamsi Paidi
IPC: H04B1/10
Abstract: A system comprises a microwave backhaul outdoor unit having a first resonant circuit, phase error determination circuitry, and phase error compensation circuitry. The first resonant circuit is operable to generate a first signal characterized by a first amount of phase noise and a first amount of temperature stability. The phase error determination circuitry is operable to generate a phase error signal indicative of phase error between the first signal and a second signal, wherein the second signal is characterized by a second amount of phase noise that is greater than the first amount of phase noise, and the second signal is characterized by a second amount of temperature instability that is less than the first amount of temperature instability. The phase error compensation circuitry is operable to adjust the phase of a data signal based on the phase error signal, the adjustment resulting in a phase compensated signal.
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公开(公告)号：US10164674B2
公开(公告)日：2018-12-25
申请号：US15180754
申请日：2016-06-13
Applicant: MaxLinear, Inc.
Inventor： Wen-Chi Tu , Stephane Laurent-Michel
Abstract: Systems and methods are provided for receiver nonlinearity estimation and cancellation. During processing of received radio frequency (RF) signals, it may be determined when one or more other signals, different from the received RF signals, cause nonlinearity affecting processing of the RF signals, and one or more cancellation adjustments may be applied during processing of the RF signals, for mitigating effects of the nonlinearity. Determining the one or more cancellation adjustments may be based on narrowband (NB) estimation of the effects of the nonlinearity, and the one or more cancellation adjustments may be configured as wideband (WB) corrections. The NB estimation may be applied based on channelization of the received RF signals. The NB estimation may comprise generating reference nonlinearity information relating to the one or more other signals, and generating, based on the reference nonlinearity information, control data for configuring the one or more cancellation adjustments.
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公开(公告)号：US20180302119A1
公开(公告)日：2018-10-18
申请号：US15919700
申请日：2018-03-13
Applicant: MAXLINEAR, INC.
Inventor： Stephane Laurent-Michel , Raghuraman Mariappan
CPC classification number: H04B3/36 , H04B1/0007 , H04B1/0028 , H04B1/0475 , H04B3/56 , H04L27/2614
Abstract: Aspects of methods and systems for PAPR reduction in a microwave backhaul outdoor unit are provided.
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公开(公告)号：US20180183473A1
公开(公告)日：2018-06-28
申请号：US15903176
申请日：2018-02-23
Applicant: Maxlinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
CPC classification number: H04B1/1027 , H01Q19/13 , H01Q19/18 , H01Q25/005 , H04B1/1081 , H04B1/123 , H04L25/03057
Abstract: A first microwave backhaul assembly comprises a first antenna, a front-end circuit, an inter-backhaul-assembly interface circuit, and an interference cancellation circuit. The first antenna is operable to receive a first microwave signal. The front-end circuit is operable to convert the first microwave signal to a lower-frequency digital signal, wherein the lower-frequency digital signal has energy of a second microwave signal and energy of a third microwave signal. The inter-backhaul-assembly interface circuit is operable to receive information from a second microwave backhaul assembly. The interference cancellation circuit is operable to use the information received via the inter-backhaul-assembly interface circuit during processing of the lower-frequency digital signal to remove, from the first microwave signal, the energy of the third microwave signal. The information received via the inter-backhaul-assembly interface may comprise a signal having energy of the second microwave signal.
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Patent Agency Ranking
公开(公告)号：US20170041032A1
公开(公告)日：2017-02-09
申请号：US15297963
申请日：2016-10-19
Applicant: MaxLinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
CPC classification number: H04B1/1027 , H01Q19/13 , H01Q19/18 , H01Q25/005 , H04B1/1081 , H04B1/123 , H04L25/03057
Abstract: A first microwave backhaul assembly comprises a first antenna, a front-end circuit, an inter-backhaul-assembly interface circuit, and an interference cancellation circuit. The first antenna is operable to receive a first microwave signal. The front-end circuit is operable to convert the first microwave signal to a lower-frequency digital signal, wherein the lower-frequency digital signal has energy of a second microwave signal and energy of a third microwave signal. The inter-backhaul-assembly interface circuit is operable to receive information from a second microwave backhaul assembly. The interference cancellation circuit is operable to use the information received via the inter-backhaul-assembly interface circuit during processing of the lower-frequency digital signal to remove, from the first microwave signal, the energy of the third microwave signal. The information received via the inter-backhaul-assembly interface may comprise a signal having energy of the second microwave signal.
Abstract translation: 第一微波回程组件包括第一天线，前端电路，回程间组件接口电路和干扰消除电路。 第一天线可操作以接收第一微波信号。 前端电路可操作以将第一微波信号转换为较低频数字信号，其中低频数字信号具有第二微波信号的能量和第三微波信号的能量。 回程间组合接口电路可操作以从第二微波回程组件接收信息。 干扰消除电路可操作以在处理低频数字信号期间使用经由回程间组合接口电路接收的信息，以从第一微波信号去除第三微波信号的能量。 通过回程 - 汇编接口接收的信息可以包括具有第二微波信号的能量的信号。
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公开(公告)号：US20160127119A1
公开(公告)日：2016-05-05
申请号：US14976529
申请日：2015-12-21
Applicant: Maxlinear, Inc.
Inventor： Subramanian Anantharaman Chandrasekarapuram , Anand Anandakumar , Stephane Laurent-Michel , Sheng Ye , Raja Pullela , Glenn Chang , Vamsi Paidi
IPC: H04L7/00
CPC classification number: H04B1/1027
Abstract: A system comprises a microwave backhaul outdoor unit having a first resonant circuit, phase error determination circuitry, and phase error compensation circuitry. The first resonant circuit is operable to generate a first signal characterized by a first amount of phase noise and a first amount of temperature stability. The phase error determination circuitry is operable to generate a phase error signal indicative of phase error between the first signal and a second signal, wherein the second signal is characterized by a second amount of phase noise that is greater than the first amount of phase noise, and the second signal is characterized by a second amount of temperature instability that is less than the first amount of temperature instability. The phase error compensation circuitry is operable to adjust the phase of a data signal based on the phase error signal, the adjustment resulting in a phase compensated signal.
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公开(公告)号：US09270310B2
公开(公告)日：2016-02-23
申请号：US14586330
申请日：2014-12-30
Applicant: MaxLinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
CPC classification number: H04B1/1027 , H01Q19/13 , H01Q19/18 , H01Q25/005 , H04B1/1081 , H04B1/123 , H04L25/03057
Abstract: A first microwave backhaul assembly comprises a first antenna, a front-end circuit, an inter-backhaul-assembly interface circuit, and an interference cancellation circuit. The first antenna is operable to receive a first microwave signal. The front-end circuit is operable to convert the first microwave signal to a lower-frequency digital signal, wherein the lower-frequency digital signal has energy of a second microwave signal and energy of a third microwave signal. The inter-backhaul-assembly interface circuit is operable to receive information from a second microwave backhaul assembly. The interference cancellation circuit is operable to use the information received via the inter-backhaul-assembly interface circuit during processing of the lower-frequency digital signal to remove, from the first microwave signal, the energy of the third microwave signal. The information received via the inter-backhaul-assembly interface may comprise a signal having energy of the second microwave signal.
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公开(公告)号：US20150188584A1
公开(公告)日：2015-07-02
申请号：US14586345
申请日：2014-12-30
Applicant: MaxLinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
IPC: H04B1/04
CPC classification number: H04L27/122 , H04B1/1027 , H04B17/0085 , H04L1/24 , H04L5/00 , H04L5/0048 , H04L27/0006
Abstract: A transmitter comprises a local oscillator circuit operable to generate a reference signal, a modulator circuit operable to generate a data-carrying signal using the reference signal, and a test signal generator circuit operable to generate a test signal using the reference signal. The test signal has a first bandwidth, and a test signal insertion circuit is operable to combine the data-carrying signal and the test signal to generate a combined signal. An amount of bandwidth in the combined signal allocated to the test signal is greater than the first bandwidth such that a component of the combined signal corresponding to the test signal is bordered by whitespace. A receiver may then use the test signal to determine and correct for phase noise introduced in the transmitter.
Abstract translation: 发射机包括可操作以产生参考信号的本地振荡器电路，可操作以使用参考信号产生数据承载信号的调制器电路，以及可操作以使用参考信号产生测试信号的测试信号发生器电路。 测试信号具有第一带宽，并且测试信号插入电路可操作以组合数据携带信号和测试信号以产生组合信号。 分配给测试信号的组合信号中的带宽量大于第一带宽，使得与测试信号相对应的组合信号的分量由空白界定。 然后，接收机可以使用测试信号来确定和校正在发射机中引入的相位噪声。
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公开(公告)号：US20200028533A1
公开(公告)日：2020-01-23
申请号：US16589791
申请日：2019-10-01
Applicant: MaxLinear, Inc.
Inventor： Wen-Chi Tu , Stephane Laurent-Michel
Abstract: Systems and methods are provided for receiver nonlinearity estimation and cancellation. Narrowband (NB) estimation may be performed in a receiver during handling of received radio frequency (RF) signals. The narrowband (NB) may include generating estimation channelization information relating to received RF signals; generating reference nonlinearity information relating to one or more other signals, which may cause or contribute to nonlinearity that affects the processing of the received RF signals; and generating, based on the estimation channelization information relating to the received RF signals and the reference nonlinearity information relating to the other signals, control data for configuring nonlinearity cancellation functions. The received RF signals may be channelized, and the estimation channelization information may be generated based on the channelization of the received RF signals. The other signals may be channelized, and the reference nonlinearity information may be generated based on the channelization of the other signals.
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