公开(公告)号：US10425262B2

公开(公告)日：2019-09-24

申请号：US16113527

申请日：2018-08-27

Applicant: MaxLinear, Inc.

Inventor： Mingrui Zhu ,  Arun Kedambadi ,  Seung Chul Hong ,  Anand Anandakumar

IPC: H04L27/26 ,  H04L25/02

Abstract: Methods and systems are provided for adaptive guard interval (GI) combining. A signal carrying a symbol that is preceded by a guard interval (GI) that includes a portion of the symbol may be received, and a portion of the GI that is free from inter-symbol interference (ISI) may be determined. Only a part of the ISI-free portion of the GI may be selected. The selected part of the ISI-free portion of the GI may be less than a whole of the ISI-free portion. The selection may be configured based on a parameter that is applied to a function used in extracting the symbol. The parameter may be a timing adjustment, relative to a start of the symbol, applied to the function when extracting the symbol. Only the part of the ISI-free portion of the GI may then be extracted and combined with a corresponding portion of the symbol.

公开(公告)号：US10063399B2

公开(公告)日：2018-08-28

申请号：US14687234

申请日：2015-04-15

Applicant: MaxLinear, Inc.

Inventor： Mingrui Zhu ,  Arun Kedambadi ,  Seung Chul Hong ,  Anand Anandakumar

IPC: H04K1/10 ,  H04L27/28 ,  H04L27/26 ,  H04L25/02

Abstract: Methods and systems are provided for adaptive guard interval (GI) combining. When a signal carrying at least one symbol that is preceded by a guard interval that comprises a portion of the symbol is received, a portion of the guard interval that is free from inter-symbol interference (ISI) may be determined, and only a part of the ISI-free portion of the guard interval may be extracted. The part of the ISI-free portion of the guard interval may be selected based on timing adjustment, relative to start of the symbol, that is applied to a function used in extracting the symbol. The extracted part of the ISI-free portion of the guard interval may then be combined with a corresponding portion of the symbol. The extracting and/or combining may be performed after a determination that a delay spread is smaller than a predetermined channel delay.

公开(公告)号：US20190123946A1

公开(公告)日：2019-04-25

申请号：US16113527

申请日：2018-08-27

Applicant: MaxLinear, Inc.

Inventor： Mingrui Zhu ,  Arun Kedambadi ,  Seung Chul Hong ,  Anand Anandakumar

IPC: H04L27/26 ,  H04L25/02

CPC classification number: H04L27/2605 ,  H04L25/0216 ,  H04L25/0222 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2647 ,  H04L27/2655

Abstract: Methods and systems are provided for adaptive guard interval (GI) combining. A signal carrying a symbol that is preceded by a guard interval (GI) that includes a portion of the symbol may be received, and a portion of the GI that is free from inter-symbol interference (ISI) may be determined. Only a part of the ISI-free portion of the GI may be selected. The selected part of the ISI-free portion of the GI may be less than a whole of the ISI-free portion. The selection may be configured based on a parameter that is applied to a function used in extracting the symbol. The parameter may be a timing adjustment, relative to a start of the symbol, applied to the function when extracting the symbol. Only the part of the ISI-free portion of the GI may then be extracted and combined with a corresponding portion of the symbol.

公开(公告)号：US20150222466A1

公开(公告)日：2015-08-06

申请号：US14687234

申请日：2015-04-15

Applicant: MaxLinear, Inc.

Inventor： Mingrui Zhu ,  Arun Kedambadi ,  Seung Chul Hong ,  Anand Anandakumar

IPC: H04L27/26

CPC classification number: H04L27/2605 ,  H04L25/0216 ,  H04L25/0222 ,  H04L25/0226 ,  H04L27/2607 ,  H04L27/2647 ,  H04L27/2655

Abstract: Methods and systems are provided for adaptive guard interval (GI) combining. When a signal carrying at least one symbol that is preceded by a guard interval that comprises a portion of the symbol is received, a portion of the guard interval that is free from inter-symbol interference (ISI) may be determined, and only a part of the ISI-free portion of the guard interval may be extracted. The part of the ISI-free portion of the guard interval may be selected based on timing adjustment, relative to start of the symbol, that is applied to a function used in extracting the symbol. The extracted part of the ISI-free portion of the guard interval may then be combined with a corresponding portion of the symbol. The extracting and/or combining may be performed after a determination that a delay spread is smaller than a predetermined channel delay.

Abstract translation: 为自适应保护间隔（GI）组合提供了方法和系统。 当接收到携带包含符号部分的保护间隔之前的至少一个符号的信号时，可以确定没有符号间干扰（ISI）的保护间隔的一部分，并且仅确定部分 可以提取保护间隔的无ISI部分。 保护间隔的无ISI部分的部分可以基于适用于提取符号所使用的功能的相对于符号开始的定时调整来选择。 然后可以将保护间隔的无ISI部分的提取部分与符号的相应部分组合。 在确定延迟扩展小于预定信道延迟之后，可以执行提取和/或组合。