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    Non-Coherent Multi-Symbol-Delay Differential Detector
    13.
    发明申请
    Non-Coherent Multi-Symbol-Delay Differential Detector 有权

    公开(公告)号：US20160241423A1

    公开(公告)日：2016-08-18

    申请号：US15006327

    申请日：2016-01-26

    Applicant: Maxlinear, Inc.

    Inventor： Ioannis Spyropoulos ,  Anand Anandakumar

    IPC: H04L25/03 ,  H04B1/16

    CPC classification number: H04L25/03184 ,  H04B1/16

    Abstract: An electronic receiver may generate a differential detection sequence based on a received symbol sequence and based on a m-symbol delayed version of the received symbol sequence, where m is an integer greater than 1. The particular differential detection sequence may be a result of an element-by-element multiplication of the particular received symbol sequence and the conjugate of an m-symbol delayed version of the particular received symbol sequence. The receiver may calculate differential decision metrics based on the differential detection sequence and based on a set of differential symbol sequences generated from the set of possible transmitted symbol sequences. The receiver may generate a decision as to which of a set of possible transmitted symbol sequences resulted in the received symbol sequence, where the decision is based on the differential decision metrics and the set of possible transmitted symbols sequences.

    Method And System For Global Navigation Satellite System Configuration Of Wireless Communication Applications
    14.
    发明申请
    Method And System For Global Navigation Satellite System Configuration Of Wireless Communication Applications 审中-公开
    无线通信应用全球导航卫星系统配置方法与系统

    公开(公告)号：US20160066160A1

    公开(公告)日：2016-03-03

    申请号：US14939455

    申请日：2015-11-12

    Applicant: Maxlinear, Inc.

    Inventor： Maxime Leclercq ,  Ioannis Spyropoulos ,  Nishant Kumar

    IPC: H04W4/04 ,  G06Q20/20 ,  G01S19/01 ,  H04W76/02 ,  H04W4/00

    CPC classification number: H04W64/00 ,  G01S5/02 ,  G01S19/01 ,  G06Q20/202 ,  H04M1/72572 ,  H04W4/50 ,  H04W64/006 ,  H04W76/10 ,  H04W84/12

    Abstract: Methods and systems for global navigation satellite system configuration of wireless communication applications may comprise determining a location of a wireless communication device (WCD) comprising a satellite positioning RF path utilizing signals received by the RF path, establishing communications with a wireless access point based on the determined location, and configuring a wireless communication function of the wireless communication device based on the determined location, which may comprise a power level of WiFi circuitry in the WCD. The determined location and a transaction ID for a transaction may be stored utilizing a security processor. The RF path may be powered down based on the determined location. The wireless function may comprise a synchronization of data on the WCD with devices in a home location. The WCD may comprise a femtocell device or a set-top box, and may be controlled by a reduced instruction set computing (RISC) central processing unit (CPU).

    Abstract translation: 用于无线通信应用的全球导航卫星系统配置的方法和系统可以包括：利用由RF路径接收的信号来确定包括卫星定位RF路径的无线通信设备（WCD）的位置，建立与无线接入点的通信，基于 确定的位置，以及基于所确定的位置来配置无线通信设备的无线通信功能，其可以包括WCD中的WiFi电路的功率电平。 可以使用安全处理器来存储确定的位置和交易的交易ID。 RF路径可以基于确定的位置被关闭。 无线功能可以包括WCD上的数据与家庭位置中的设备的同步。 WCD可以包括毫微微蜂窝设备或机顶盒，并且可以由精简指令集计算（RISC）中央处理单元（CPU）来控制。

    Reconfigurable digital predistortion circuit
    15.
    发明授权
    Reconfigurable digital predistortion circuit 有权

    公开(公告)号：US10826616B2

    公开(公告)日：2020-11-03

    申请号：US16376504

    申请日：2019-04-05

    Applicant: Maxlinear, Inc.

    Inventor： Ioannis Spyropoulos ,  Anand Anandakumar

    IPC: H04B10/564 ,  H04B1/04 ,  H04B10/58

    Abstract: A system comprises a digital predistortion circuit comprising: a first quantity of delay circuits configured to delay a signal to be predistorted; a second quantity of filter tap circuits, wherein the second quantity is smaller than the first quantity; and a delay-to-filter-taps mapping circuit that is operable to map each output of a first subset of the delay circuits to a corresponding input of the filter tap circuits. The system may comprise circuitry operable to select which of the first quantity of delay circuits is in the first subset. The selection of which of the first quantity of delay circuits is in the first subset may be based on a temperature measurement. The digital predistortion circuit may comprise cross-term generation circuitry operable to generate cross-term signals corresponding to the cross products of multiple, differently-delayed versions of a signal input to the digital predistortion circuit.

    Non-Coherent Multi-Symbol-Delay Differential Detector
    17.
    发明申请
    Non-Coherent Multi-Symbol-Delay Differential Detector 有权

    公开(公告)号：US20170111190A1

    公开(公告)日：2017-04-20

    申请号：US15392421

    申请日：2016-12-28

    Applicant: Maxlinear, Inc.

    Inventor： Ioannis Spyropoulos ,  Anand Anandakumar

    IPC: H04L25/03 ,  H04B1/16

    CPC classification number: H04L25/03184 ,  H04B1/16

    Abstract: An electronic receiver may generate a differential detection sequence based on a received symbol sequence and based on a m-symbol delayed version of the received symbol sequence, where m is an integer greater than 1. The particular differential detection sequence may be a result of an element-by-element multiplication of the particular received symbol sequence and the conjugate of an m-symbol delayed version of the particular received symbol sequence. The receiver may calculate differential decision metrics based on the differential detection sequence and based on a set of differential symbol sequences generated from the set of possible transmitted symbol sequences. The receiver may generate a decision as to which of a set of possible transmitted symbol sequences resulted in the received symbol sequence, where the decision is based on the differential decision metrics and the set of possible transmitted symbols sequences.

    Method And System For A Dual Mode Global Navigation Satellite System
    18.
    发明申请
    Method And System For A Dual Mode Global Navigation Satellite System 有权
    双模全球导航卫星系统的方法与系统

    公开(公告)号：US20160370473A1

    公开(公告)日：2016-12-22

    申请号：US15251094

    申请日：2016-08-30

    Applicant: Maxlinear, Inc.

    Inventor： Maxime Leclercq ,  Ioannis Spyropoulos ,  Nishant Kumar

    IPC: G01S19/42 ,  G01S19/33

    CPC classification number: G01S19/423 ,  G01S19/33 ,  G01S19/34

    Abstract: Methods and systems for a dual mode global navigation satellite system may comprise selectively enabling a medium Earth orbit (MEO) radio frequency (RF) path and a low Earth orbit (LEO) RF path in a wireless communication device to receive RF satellite signals. The signals may be processed to determine a position of the wireless device. The signals may be digitized and buffered before further processing. The RF paths may be time-division duplexed by the selective enabling of the MEO and LEO paths. Acquisition and tracking modules in the MEO RF path may be blanked when the LEO RF path is enabled. The MEO RF path may be powered down when the LEO RF path is enabled. The signals may be down-converted to an intermediate frequency before down-converting to baseband frequencies or may be down-converted directly to baseband frequencies. In-phase and quadrature signals may be processed.

    Abstract translation: 用于双模式全球导航卫星系统的方法和系统可以包括在无线通信设备中选择性地启用介质地球轨道（MEO）射频（RF）路径和低地球轨道（LEO）RF路径以接收RF卫星信号。 可以处理信号以确定无线设备的位置。 信号可以在进一步处理之前进行数字化和缓冲。 RF路径可以通过MEO和LEO路径的选择性启用而被时分双工。 当LEO RF路径启用时，MEO RF路径中的采集和跟踪模块可能会被消隐。 当LEO射频路径启用时，MEO RF路径可能会关闭电源。 信号可以在下变频到基带频率之前下变频到中频，或者可以直接下变频到基带频率。 可以处理同相和正交信号。

    Method And System For Femtocell Positioning Using Low Earth Orbit Satellite Signals
    19.
    发明申请
    Method And System For Femtocell Positioning Using Low Earth Orbit Satellite Signals 有权
    使用低地球轨道卫星信号进行毫微微小区定位的方法和系统

    公开(公告)号：US20160056882A1

    公开(公告)日：2016-02-25

    申请号：US14928580

    申请日：2015-10-30

    Applicant: Maxlinear, Inc.

    Inventor： Maxime Leclercq ,  Ioannis Spyropoulos ,  Nishant Kumar

    IPC: H04B7/185 ,  G01S19/13 ,  H04W4/02

    CPC classification number: H04B7/18554 ,  G01S19/13 ,  G01S19/425 ,  H04W4/021 ,  H04W64/003 ,  H04W84/045

    Abstract: Methods and systems for femtocell positioning using low Earth orbit (LEO) satellite signals may comprise receiving LEO RF satellite signals utilizing a LEO satellite signal receiver path when medium Earth orbit (MEO) signals are attenuated below a threshold needed for positioning purposes. A position of said wireless communication device (WCD) may be measured based on the received LEO RF satellite signals. The measured position of the WCD may be compared to a threshold radius defined by a stored initial position. Wireless communication services to the other WCDs may be enabled when the measured position is within the threshold radius. Reentry of the stored initial position may be requested when the measured position is outside of the threshold radius. The WCD may be disabled when the measured position of the WCD falls outside of the threshold radius more than a predetermined number of times.

    Abstract translation: 使用低地球轨道（LEO）卫星信号的毫微微小区定位的方法和系统可以包括当中等地球轨道（MEO）信号被衰减到定位目的所需的阈值以下时，利用LEO卫星信号接收机路径接收LEO RF卫星信号。 可以基于接收的LEO RF卫星信号来测量所述无线通信设备（WCD）的位置。 WCD的测量位置可以与由存储的初始位置定义的阈值半径进行比较。 当测量位置在阈值半径内时，可以启用与其他WCD的无线通信服务。 当测量位置在阈值半径之外时，可以请求存储的初始位置的再入。 当WCD的测量位置超出阈值半径超过预定次数时，WCD可能被禁用。

    Non-Coherent Multi-Symbol-Delay Differential Detector
    20.
    发明申请
    Non-Coherent Multi-Symbol-Delay Differential Detector 有权
    非相干多符号延迟差分检测器

    公开(公告)号：US20150207650A1

    公开(公告)日：2015-07-23

    申请号：US14602837

    申请日：2015-01-22

    Applicant: MaxLinear, Inc.

    Inventor： Ioannis Spyropoulos ,  Anand Anandakumar

    IPC: H04L25/03

    CPC classification number: H04L25/03184 ,  H04B1/16

    Abstract: An electronic receiver may generate a differential detection sequence based on a received symbol sequence and based on a m-symbol delayed version of the received symbol sequence, where m is an integer greater than 1. The particular differential detection sequence may be a result of an element-by-element multiplication of the particular received symbol sequence and the conjugate of an m-symbol delayed version of the particular received symbol sequence. The receiver may calculate differential decision metrics based on the differential detection sequence and based on a set of differential symbol sequences generated from the set of possible transmitted symbol sequences. The receiver may generate a decision as to which of a set of possible transmitted symbol sequences resulted in the received symbol sequence, where the decision is based on the differential decision metrics and the set of possible transmitted symbols sequences.

    Abstract translation: 电子接收机可以基于接收到的符号序列并基于接收符号序列的m符号延迟版本来生成差分检测序列，其中m是大于1的整数。特定的差分检测序列可以是 特定接收符号序列的逐个元素乘法和特定接收符号序列的m符号延迟版本的共轭。 接收机可以基于差分检测序列并且基于从该组可能发送的符号序列生成的一组差分符号序列来计算差分决策度量。 接收机可以产生关于一组可能的传输符号序列中的哪一个导致接收到的符号序列的决定，其中该决定基于差分决策度量和可能发送的符号序列的集合。

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