公开(公告)号：US09054765B2

公开(公告)日：2015-06-09

申请号：US13655766

申请日：2012-10-19

Applicant: Marvell World Trade Ltd.

Inventor： Raphael Cendrillon ,  Yakun Sun ,  Hongyuan Zhang ,  Atul Salhotra ,  Hui-Ling Lou

IPC: H04B7/08 ,  H04B1/707

CPC classification number: H04B7/0854 ,  H04B7/0851 ,  H04B2001/70724

Abstract: Systems and methods are provided for suppressing interference from a received data signal. A characteristic of a channel is estimated, the channel being configured for transmission of data between a transmitting device and a receiving device having two or more receive antennas. A spatial correlation of interference is determined for the two or more receive antennas based on the channel characteristic. The received data signal is filtered based on the spatial correlation.

Abstract translation: 提供了用于抑制来自接收到的数据信号的干扰的系统和方法。 估计信道的特性，该信道被配置用于发送设备和具有两个或更多个接收天线的接收设备之间的数据传输。 基于信道特性，确定两个或多个接收天线的干扰的空间相关性。 基于空间相关性对接收的数据信号进行滤波。

公开(公告)号：US09270311B2

公开(公告)日：2016-02-23

申请号：US14560827

申请日：2014-12-04

Applicant: Marvell World Trade Ltd.

Inventor： Srinivas Pinagapany ,  Sergey Timofeev ,  Atul Salhotra

IPC: H04B1/10 ,  H04B1/12 ,  H04B17/00 ,  H04B1/40

CPC classification number: H04B1/123 ,  H03H7/0161 ,  H03H11/1291 ,  H03H2210/025 ,  H03H2210/046 ,  H04B1/40 ,  H04B17/0085 ,  H04B17/21

Abstract: Devices and methods capable of addressing filter responses are disclosed. For example, a method for compensating a first low-pass filter and a second low-pass filter is disclosed. The method includes injecting a reference tone fR and a cutoff tone fC into the first low-pass filter, and measuring respective filter responses of the reference tone fR and the cutoff tone fC while changing capacitor codes that control a cutoff frequency of the first low-pass filter until a first capacitor code ICODE is determined that most accurately causes the first low-pass filter to utilize a desired cutoff frequency f0, performing a similar operation for the second low-pass filter until a second capacitor code QCODE is determined, and calibrating for mismatch between the first low-pass filter and the second low-pass filter.

Abstract translation: 公开了能够寻址滤波器响应的装置和方法。 例如，公开了一种用于补偿第一低通滤波器和第二低通滤波器的方法。 该方法包括将参考音fR和截止频率fC注入到第一低通滤波器中，并且在改变控制第一低通滤波器的截止频率的电容器代码的同时测量参考音fR和截止频率fC的各个滤波器响应， 通过滤波器直到确定最准确地使第一低通滤波器利用期望的截止频率f0的第一电容器代码ICODE，对第二低通滤波器执行类似的操作，直到确定第二电容器代码QCODE，并校准 用于第一低通滤波器和第二低通滤波器之间的失配。

公开(公告)号：US20130242928A1

公开(公告)日：2013-09-19

申请号：US13891784

申请日：2013-05-10

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Sandesh Goel ,  Timothy J. Donovan ,  Ken Kinwah Ho ,  Yungping Hsu ,  Kedar Shirali ,  Atul Salhotra ,  Tam Tran ,  Chia-Chun Chung

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W74/0808

Abstract: A system including a physical layer module and a control module. The physical layer module is configured to generate a first clear channel assessment for a first sub-channel of a communication channel and generate a second clear channel assessment for a second sub-channel of the communication channel. The first clear channel assessment indicates whether the first sub-channel is free or busy. The second clear channel assessment indicates whether the second sub-channel is free or busy. The control module is configured to, in response to the second sub-channel being busy, extend a duration of the second clear channel assessment by a predetermined period of time, and transmit data via (i) only the first sub-channel or (ii) both the first sub-channel and the second sub-channel based on (a) the first clear channel assessment, (b) the second clear channel assessment, and (c) the extended duration of the first clear channel assessment.

Abstract translation: 一种包括物理层模块和控制模块的系统。 物理层模块被配置为对通信信道的第一子信道生成第一清除信道评估，并且生成用于通信信道的第二子信道的第二清除信道评估。 第一个清除频道评估表明第一个子频道是空闲还是忙碌。 第二个清除频道评估表明第二个子频道是空闲还是忙碌。 控制模块被配置为响应于第二子信道忙，将第二清除信道评估的持续时间延长预定时间段，并且经由（i）仅传送第一子信道或（ii） ）基于（a）第一清除信道评估，（b）第二清除信道评估和（c）第一清除信道评估的延长持续时间，第一子信道和第二子信道两者。

公开(公告)号：US20130101060A1

公开(公告)日：2013-04-25

申请号：US13655766

申请日：2012-10-19

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Raphael Cendrillon ,  Yakun Sun ,  Hongyuan Zhang ,  Atul Salhotra ,  Hui-Ling Lou

IPC: H04L1/02

CPC classification number: H04B7/0854 ,  H04B7/0851 ,  H04B2001/70724

Abstract: Systems and methods are provided for suppressing interference from a received data signal. A characteristic of a channel is estimated, the channel being configured for transmission of data between a transmitting device and a receiving device having two or more receive antennas. A spatial correlation of interference is determined for the two or more receive antennas based on the channel characteristic. The received data signal is filtered based on the spatial correlation.

Abstract translation: 提供了用于抑制来自接收到的数据信号的干扰的系统和方法。 估计信道的特性，该信道被配置用于发送设备和具有两个或更多个接收天线的接收设备之间的数据传输。 基于信道特性，确定两个或多个接收天线的干扰的空间相关性。 基于空间相关性对接收的数据信号进行滤波。

公开(公告)号：US09014207B2

公开(公告)日：2015-04-21

申请号：US13891784

申请日：2013-05-10

Applicant: Marvell World Trade Ltd.

Inventor： Sandesh Goel ,  Timothy J. Donovan ,  Ken Kinwah Ho ,  Yungping Hsu ,  Kedar Shirali ,  Atul Salhotra ,  Tam Tran ,  Chia-Chun Chung

IPC: H04L12/413 ,  H04W4/00 ,  H04W72/04 ,  H04W74/08

CPC classification number: H04W72/04 ,  H04W74/0808

Abstract: A system including a physical layer module and a control module. The physical layer module is configured to generate a first clear channel assessment for a first sub-channel of a communication channel and generate a second clear channel assessment for a second sub-channel of the communication channel. The first clear channel assessment indicates whether the first sub-channel is free or busy. The second clear channel assessment indicates whether the second sub-channel is free or busy. The control module is configured to, in response to the second sub-channel being busy, extend a duration of the second clear channel assessment by a predetermined period of time, and transmit data via (i) only the first sub-channel or (ii) both the first sub-channel and the second sub-channel based on (a) the first clear channel assessment, (b) the second clear channel assessment, and (c) the extended duration of the first clear channel assessment.

Abstract translation: 一种包括物理层模块和控制模块的系统。 物理层模块被配置为对通信信道的第一子信道生成第一清除信道评估，并且生成用于通信信道的第二子信道的第二清除信道评估。 第一个清除频道评估表明第一个子频道是空闲还是忙碌。 第二个清除频道评估表明第二个子频道是空闲还是忙碌。 控制模块被配置为响应于第二子信道忙，将第二清除信道评估的持续时间延长预定时间段，并且经由（i）仅传送第一子信道或（ii） ）基于（a）第一清除信道评估，（b）第二清除信道评估和（c）第一清除信道评估的延长持续时间，第一子信道和第二子信道两者。