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公开(公告)号：US20190123772A1
公开(公告)日：2019-04-25
申请号：US16229789
申请日：2018-12-21
Applicant: MaxLinear, Inc.
Inventor： Wen-Chi Tu , Stephane Laurent-Michel
CPC classification number: H04B1/123 , H04B1/0475
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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公开(公告)号：US10187096B2
公开(公告)日：2019-01-22
申请号：US15609946
申请日：2017-05-31
Applicant: Maxlinear, Inc.
Inventor： Subramanian Anantharaman Chandrasekarapuram , Anand Anandakumar , Stephane Laurent-Michel , Sheng Ye , Raja Pullela , Glenn Chang , Vamsi Paidi
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：US09923585B2
公开(公告)日：2018-03-20
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.
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公开(公告)号：US09917618B2
公开(公告)日：2018-03-13
申请号：US15200598
申请日：2016-07-01
Applicant: MAXLINEAR, INC.
Inventor： Stephane Laurent-Michel , Raghuraman Mariappan
CPC classification number: H04B3/36 , H04B1/0475
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：US20170264325A1
公开(公告)日：2017-09-14
申请号：US15609946
申请日：2017-05-31
Applicant: Maxlinear, Inc.
Inventor： Subramanian Anantharaman Chandrasekarapuram , Anand Anandakumar , Stephane Laurent-Michel , Sheng Ye , Raja Pullela , Glenn Chang , Vamsi Paidi
IPC: H04B1/10
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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Patent Agency Ranking
公开(公告)号：US20170207936A1
公开(公告)日：2017-07-20
申请号：US15478898
申请日：2017-04-04
Applicant: Maxlinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
CPC classification number: H04L27/122 , H04B1/1027 , H04B17/0085 , H04L1/24 , H04L5/00 , H04L5/0048 , H04L27/0006
Abstract: A system comprises a modulator circuit, a test signal generator circuit, and a control circuit. The modulator circuit is operable to generate a data-carrying signal based on a reference signal. The test signal generator circuit is operable to generate a test signal based on the reference signal. The control circuit is operable to determine current status of a microwave backhaul link. The control circuit is operable to configure a nominal frequency at which the test signal generator circuit generates the test signal based on the determined status of the microwave backhaul link. The control circuit is operable to determine an amount of whitespace to have on either side of the test signal based on the current status of the microwave backhaul link. The control circuit is operable to configure the modulator circuit such that the data-carrying signal has the determined amount of whitespace surrounding the nominal frequency of the test signal.
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公开(公告)号：US09685983B2
公开(公告)日：2017-06-20
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
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：US20160285488A1
公开(公告)日：2016-09-29
申请号：US15172467
申请日：2016-06-03
Applicant: Maxlinear, Inc.
Inventor： Stephane Laurent-Michel , Curtis Ling
CPC classification number: H04L27/122 , H04B1/1027 , H04B17/0085 , H04L1/24 , H04L5/00 , H04L5/0048 , H04L27/0006
Abstract: A system comprises a modulator circuit, a test signal generator circuit, and a control circuit. The modulator circuit is operable to generate a data-carrying signal based on a reference signal. The test signal generator circuit is operable to generate a test signal based on the reference signal. The control circuit is operable to determine current status of a microwave backhaul link. The control circuit is operable to configure a nominal frequency at which the test signal generator circuit generates the test signal based on the determined status of the microwave backhaul link. The control circuit is operable to determine an amount of whitespace to have on either side of the test signal based on the current status of the microwave backhaul link. The control circuit is operable to configure the modulator circuit such that the data-carrying signal has the determined amount of whitespace surrounding the nominal frequency of the test signal.
Abstract translation: 系统包括调制器电路，测试信号发生器电路和控制电路。 调制器电路可操作以基于参考信号产生数据承载信号。 测试信号发生器电路可操作以基于参考信号产生测试信号。 控制电路可操作以确定微波回程链路的当前状态。 控制电路可操作以配置基于所确定的微波回程链路状态的测试信号发生器电路产生测试信号的额定频率。 控制电路可操作以基于微波回程链路的当前状态来确定在测试信号的任一侧上具有的空白量。 控制电路可操作以配置调制器电路，使得数据承载信号具有围绕测试信号的额定频率的确定的空白量。
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公开(公告)号：US20160128136A1
公开(公告)日：2016-05-05
申请号：US14929465
申请日：2015-11-02
Applicant: MaxLinear, Inc.
Inventor： Anand Anandakumar , Sheng Ye , Stephane Laurent-Michel , Glenn Chang , Raja Pullela , Vamsi Paidi
IPC: H04W88/08
CPC classification number: H04L27/0014 , H04L2027/0067
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.
Abstract translation: 一种系统包括具有第一谐振电路，相位误差确定电路和相位误差补偿电路的微波回程室外单元。 第一谐振电路可操作以产生第一信号，其特征在于第一量相位噪声和第一量度的温度稳定性。 相位误差确定电路可操作以产生指示第一信号和第二信号之间的相位误差的相位误差信号，其中第二信号的特征在于大于第一相位噪声量的第二相位噪声量， 并且第二信号的特征在于小于第一温度不稳定性的第二量的温度不稳定性。 相位误差补偿电路可操作以基于相位误差信号调整数据信号的相位，导致相位补偿信号的调整。
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公开(公告)号：US20150188585A1
公开(公告)日：2015-07-02
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.
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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