公开(公告)号：US20240187154A1

公开(公告)日：2024-06-06

申请号：US18440880

申请日：2024-02-13

Applicant: MAXLINEAR, INC.

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Xing Tan

IPC: H04L5/00

CPC classification number: H04L5/003

Abstract: Methods and systems are provided for using frequency spreading during communications, in particular communications in which multiple carriers (or subcarriers) are used. The frequency spreading may comprise generating a plurality of spreading data vectors based on transmit data, such as by application of a spreading matrix to portions of the transmit data. Each spreading data vector may comprise a plurality of elements, for assignment to the multiple subcarriers. The receive-side device may then apply frequency de-spreading, to obtain the original transmit data. The frequency de-spreading may comprise use of the same spreading matrix on data extracted from received signals, which (the data) may correspond to the plurality of spreading data vectors.

公开(公告)号：US11343032B2

公开(公告)日：2022-05-24

申请号：US14157090

申请日：2014-01-16

Applicant: MaxLInear, Inc.

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Xing Tan

IPC: H04L5/00

Abstract: Methods and systems are provided for using frequency spreading during communications, in particular communications in which multiple carriers (or subcarriers) are used. The frequency spreading may comprise generating a plurality of spreading data vectors based on transmit data, such as by application of a spreading matrix to portions of the transmit data. Each spreading data vector may comprise a plurality of elements, for assignment to the multiple subcarriers. The receive-side device may then apply frequency de-spreading, to obtain the original transmit data. The frequency de-spreading may comprise use of the same spreading matrix on data extracted from received signals, which (the data) may correspond to the plurality of spreading data vectors.

公开(公告)号：US20140198828A1

公开(公告)日：2014-07-17

申请号：US14157090

申请日：2014-01-16

Applicant: MaxLInear, Inc.

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Xing Tan

IPC: H04B1/69

Abstract: Methods and systems are provided for using frequency spreading during communications, in particular communications in which multiple carriers (or subcarriers) are used. The frequency spreading may comprise generating a plurality of spreading data vectors based on transmit data, such as by application of a spreading matrix to portions of the transmit data. Each spreading data vector may comprise a plurality of elements, for assignment to the multiple subcarriers. The receive-side device may then apply frequency de-spreading, to obtain the original transmit data. The frequency de-spreading may comprise use of the same spreading matrix on data extracted from received signals, which (the data) may correspond to the plurality of spreading data vectors.

Abstract translation: 提供了用于在通信期间使用频率扩展的方法和系统，特别是其中使用多个载波（或子载波）的通信。 频率扩展可以包括基于发送数据生成多个扩展数据向量，例如通过将扩展矩阵应用于发送数据的部分。 每个扩展数据向量可以包括多个元素，用于分配给多个子载波。 然后，接收侧设备可以应用频率去扩展，以获得原始发送数据。 频率去扩展可以包括对从接收信号提取的数据使用相同的扩展矩阵，该数据可以对应于多个扩展数据向量。

公开(公告)号：US09456431B2

公开(公告)日：2016-09-27

申请号：US14319769

申请日：2014-06-30

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC: G06F1/12 ,  H04W56/00 ,  G01S19/23 ,  H03L1/02

CPC classification number: H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

Abstract: Methods and systems for precise temperature and timebase PPM error estimation using multiple timebases may comprise in an electronic device comprising a plurality of timebases and measuring a temperature corresponding to the timebases. Frequencies of the timebases at the measured temperature may be compared to determine differential error functions for the timebases. A fine reading of the temperature corresponding to the timebases may be generated based, at least in part, on the measured temperature and the determined differential error functions for the timebases. The timebases may be calibrated utilizing the generated fine reading of the temperature. The timebases may comprise different order temperature dependencies. Models of temperature dependencies of each of the timebases based may be updated, at least in part, on the fine reading of the temperature. A global navigation satellite system (GNSS) clock signal may be periodically utilized to improve the accuracy of the calibration of the timebases.

Abstract translation: 用于精确温度和时基的方法和系统使用多个时基的PPM误差估计可以包括在包括多个时基并且测量对应于时基的温度的电子设备中。 可以比较测量温度下时基的频率，以确定时基的差分误差函数。 至少部分地基于所测量的温度和确定的时间基差分误差函数来生成对应于时间基的温度的精细读数。 可以利用生成的温度读数来校准时基。 时间基可以包括不同的顺序温度依赖性。 每个基于时间基的温度依赖性的模型可以至少部分地基于对温度的精细读取来更新。 周期性地使用全球导航卫星系统（GNSS）时钟信号来提高时基的校准精度。

公开(公告)号：US20140314070A1

公开(公告)日：2014-10-23

申请号：US14319769

申请日：2014-06-30

Applicant: MAXLINEAR, INC.

Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC: H04W56/00 ,  G06F1/12

CPC classification number: H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

Abstract: Methods and systems for precise temperature and timebase PPM error estimation using multiple timebases may comprise in an electronic device comprising a plurality of timebases and measuring a temperature corresponding to the timebases. Frequencies of the timebases at the measured temperature may be compared to determine differential error functions for the timebases. A fine reading of the temperature corresponding to the timebases may be generated based, at least in part, on the measured temperature and the determined differential error functions for the timebases. The timebases may be calibrated utilizing the generated fine reading of the temperature. The timebases may comprise different order temperature dependencies. Models of temperature dependencies of each of the timebases based may be updated, at least in part, on the fine reading of the temperature. A global navigation satellite system (GNSS) clock signal may be periodically utilized to improve the accuracy of the calibration of the timebases.

Abstract translation: 用于精确温度和时基的方法和系统使用多个时基的PPM误差估计可以包括在包括多个时基并且测量对应于时基的温度的电子设备中。 可以比较测量温度下时基的频率，以确定时基的差分误差函数。 至少部分地基于所测量的温度和确定的时间基差分误差函数来生成对应于时间基的温度的精细读数。 可以利用生成的温度读数来校准时基。 时间基可以包括不同的顺序温度依赖性。 每个基于时间基的温度依赖性的模型可以至少部分地基于对温度的精细读取来更新。 周期性地使用全球导航卫星系统（GNSS）时钟信号来提高时基的校准精度。

公开(公告)号：US20220286245A1

公开(公告)日：2022-09-08

申请号：US17664840

申请日：2022-05-24

Applicant: MAXLINEAR, INC.

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Xing Tan

IPC: H04L5/00

Abstract: Methods and systems are provided for using frequency spreading during communications, in particular communications in which multiple carriers (or subcarriers) are used. The frequency spreading may comprise generating a plurality of spreading data vectors based on transmit data, such as by application of a spreading matrix to portions of the transmit data. Each spreading data vector may comprise a plurality of elements, for assignment to the multiple subcarriers. The receive-side device may then apply frequency de-spreading, to obtain the original transmit data. The frequency de-spreading may comprise use of the same spreading matrix on data extracted from received signals, which (the data) may correspond to the plurality of spreading data vectors.

公开(公告)号：US11902187B2

公开(公告)日：2024-02-13

申请号：US17664840

申请日：2022-05-24

Applicant: MAXLINEAR, INC.

Inventor： Sridhar Ramesh ,  Curtis Ling ,  Xing Tan

IPC: H04L5/00

CPC classification number: H04L5/003

Abstract: Methods and systems are provided for using frequency spreading during communications, in particular communications in which multiple carriers (or subcarriers) are used. The frequency spreading may comprise generating a plurality of spreading data vectors based on transmit data, such as by application of a spreading matrix to portions of the transmit data. Each spreading data vector may comprise a plurality of elements, for assignment to the multiple subcarriers. The receive-side device may then apply frequency de-spreading, to obtain the original transmit data. The frequency de-spreading may comprise use of the same spreading matrix on data extracted from received signals, which (the data) may correspond to the plurality of spreading data vectors.

公开(公告)号：US20180324724A1

公开(公告)日：2018-11-08

申请号：US16037780

申请日：2018-07-17

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC: H04W56/00 ,  G06F1/12 ,  H03L1/02 ,  G01S19/23 ,  G01S19/14

CPC classification number: H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

Abstract: Methods and systems for precise temperature and timebase ppm error estimation using multiple timebases may comprise measuring a temperature corresponding to the plurality of timebases. The frequencies of the timebases may be compared to generate error functions for the timebases, and generating a more accurate reading of the temperature based, at least in part, on the measured temperature and the error functions for the timebases. The timebases may be calibrated utilizing the generated more accurate reading. The plurality of timebases may comprise different order temperature dependencies. The models of temperature dependencies of each of the plurality of timebases may be updated based, at least in part, on the fine reading of the temperature corresponding to the plurality of timebases. A global navigation satellite system (GNSS) clock signal may be utilized periodically to improve the accuracy of the calibration of the plurality of timebases.

公开(公告)号：US10028239B2

公开(公告)日：2018-07-17

申请号：US15277375

申请日：2016-09-27

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC: G01S19/23 ,  H04W56/00 ,  H03L1/02 ,  G06F1/12 ,  G01S19/14

Abstract: Methods and systems for precise temperature and timebase ppm error estimation using multiple timebases may comprise measuring a temperature corresponding to the plurality of timebases. The frequencies of the timebases may be compared to generate error functions for the timebases, and generating a more accurate reading of the temperature based, at least in part, on the measured temperature and the error functions for the timebases. The timebases may be calibrated utilizing the generated more accurate reading. The plurality of timebases may comprise different order temperature dependencies. The models of temperature dependencies of each of the plurality of timebases may be updated based, at least in part, on the fine reading of the temperature corresponding to the plurality of timebases. A global navigation satellite system (GNSS) clock signal may be utilized periodically to improve the accuracy of the calibration of the plurality of timebases.

公开(公告)号：US20170019871A1

公开(公告)日：2017-01-19

申请号：US15277375

申请日：2016-09-27

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Xing Tan ,  Hyungjin Kim

IPC: H04W56/00 ,  G01S19/14 ,  G06F1/12

CPC classification number: H04W56/001 ,  G01S19/14 ,  G01S19/235 ,  G06F1/12 ,  H03L1/02 ,  H03L1/026

Abstract: Methods and systems for precise temperature and timebase ppm error estimation using multiple timebases may comprise measuring a temperature corresponding to the plurality of timebases. The frequencies of the timebases may be compared to generate error functions for the timebases, and generating a more accurate reading of the temperature based, at least in part, on the measured temperature and the error functions for the timebases. The timebases may be calibrated utilizing the generated more accurate reading. The plurality of timebases may comprise different order temperature dependencies. The models of temperature dependencies of each of the plurality of timebases may be updated based, at least in part, on the fine reading of the temperature corresponding to the plurality of timebases. A global navigation satellite system (GNSS) clock signal may be utilized periodically to improve the accuracy of the calibration of the plurality of timebases.

Abstract translation: 使用多个时基的精确温度和时基ppm误差估计的方法和系统可以包括测量对应于多个时基的温度。 可以比较时基的频率以产生时间基的误差函数，并且至少部分地基于所测量的温度和时间基的误差函数来产生更准确的温度读数。 可以利用生成的更准确的读数来校准时基。 多个时基可以包括不同的顺序温度依赖性。 至少部分地，可以基于对应于多个时间基的温度的精细读取来更新多个时基中的每一个的温度依赖性的模型。 周期性地可以利用全球导航卫星系统（GNSS）时钟信号来提高多个时基的校准精度。