公开(公告)号：US20140201592A1

公开(公告)日：2014-07-17

申请号：US14068534

申请日：2013-10-31

Applicant: BROADCOM CORPORATION

Inventor： Ba-Zhong Shen ,  Avi Kliger ,  Tak K. Lee

IPC: H04L1/00

CPC classification number: H04L1/0041 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/118 ,  H03M13/1185 ,  H03M13/6362 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0068

Abstract: A communication device is configured to encode and/or decode low density parity check (LDPC) coded signals. Such LDPC coded signals are characterized by LDPC matrices having a particular form. An LDPC matrix may be partitioned into a left hand side matrix and the right hand side matrix. The right hand side matrix can be lower triangular such that all of the sub-matrices therein are all-zero-valued sub-matrices (e.g., all of the elements within an all-zero-valued sub-matrix have the value of “0”) except for those sub-matrices located on a main diagonal of the right hand side matrix and another diagonal that is adjacently located to the left of the main diagonal. A device may be configured to employ different LDPC codes having different LDPC matrices for different LDPC coded signals. The different LDPC matrices may be based generally on a common form (e.g., with a right hand side matrix as described above).

Abstract translation: 通信设备被配置为对低密度奇偶校验（LDPC）编码信号进行编码和/或解码。 这样的LDPC编码信号的特征在于具有特定形式的LDPC矩阵。 LDPC矩阵可以被划分为左手侧矩阵和右手侧矩阵。 右侧的矩阵可以是较低的三角形，使得其中的所有子矩阵都是全零值子矩阵（例如，全零值子矩阵内的所有元素的值为“0” “），除了位于右手侧矩阵的主对角线上的那些子矩阵和相邻地位于主对角线左侧的另一对角线之外。 设备可以被配置为对不同的LDPC编码信号采用具有不同LDPC矩阵的不同LDPC码。 不同的LDPC矩阵通常可以基于普通形式（例如，如上所述使用右手侧矩阵）。

公开(公告)号：US20140201588A1

公开(公告)日：2014-07-17

申请号：US14068479

申请日：2013-10-31

Applicant: BROADCOM CORPORATION

Inventor： Ba-Zhong Shen ,  Tak K. Lee ,  Jonathan S. Min ,  Avi Kliger ,  Richard S. Prodan

IPC: H04L1/00

CPC classification number: H04L1/0041 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/35 ,  H04L1/0057

Abstract: A communication device is configured to encode and/or decode low density parity check (LDPC) coded signals. Such LDPC coded signals are characterized by LDPC matrices having a particular form. An LDPC matrix may be partitioned into a left hand side matrix and the right hand side matrix. The right hand side matrix can be lower triangular such that all of the sub-matrices therein are all-zero-valued sub-matrices (e.g., all of the elements within an all-zero-valued sub-matrix have the value of “0”) except for those sub-matrices located on a main diagonal of the right hand side matrix and another diagonal that is adjacently located to the left of the main diagonal. A device may be configured to employ different LDPC codes having different LDPC matrices for different LDPC coded signals. The different LDPC matrices may be based generally on a common form (e.g., with a right hand side matrix as described above).

Abstract translation: 通信设备被配置为对低密度奇偶校验（LDPC）编码信号进行编码和/或解码。 这样的LDPC编码信号的特征在于具有特定形式的LDPC矩阵。 LDPC矩阵可以被划分为左手侧矩阵和右手侧矩阵。 右侧的矩阵可以是较低的三角形，使得其中的所有子矩阵都是全零值子矩阵（例如，全零值子矩阵内的所有元素的值为“0” “），除了位于右手侧矩阵的主对角线上的那些子矩阵和相邻地位于主对角线左侧的另一对角线之外。 设备可以被配置为对不同的LDPC编码信号采用具有不同LDPC矩阵的不同LDPC码。 不同的LDPC矩阵通常可以基于普通形式（例如，如上所述使用右手侧矩阵）。

公开(公告)号：US09276703B2

公开(公告)日：2016-03-01

申请号：US14695231

申请日：2015-04-24

Applicant: BROADCOM CORPORATION

Inventor： Ba-Zhong Shen ,  Avi Kliger ,  Tak K. Lee ,  Anatoli Shindler

IPC: H03M13/29 ,  H04L1/00 ,  H03M13/11 ,  H03M13/45 ,  H04L25/06 ,  H04L27/34

CPC classification number: H04L1/0045 ,  H03M13/1102 ,  H03M13/29 ,  H03M13/45 ,  H04L1/005 ,  H04L1/0065 ,  H04L1/007 ,  H04L1/0071 ,  H04L25/067 ,  H04L27/3416

Abstract: Impulse and/or burst noise signal to noise ratio (SNR) aware concatenated forward error correction (FEC). Adaptive processing is performed on a signal based on one or more effects which may deleteriously modify a signal. For example, based on a modification of a signal to noise ratio (SNR) associated with one or more impulse or burst noise events, which may be estimated, different respective processing may be performed selectively to differently affected bits associated with the signal. For example, two respective SNRs may be employed: a first SNR for one or more first bits, and a second SNR for one or more second bits. For example, as an impulse or burst noise event may affect different respective bits of a codeword differently, and adaptive processing may be made such that different respective bits of the codeword may be handled differently.

公开(公告)号：US09253554B2

公开(公告)日：2016-02-02

申请号：US14029180

申请日：2013-09-17

Applicant: Broadcom Corporation

Inventor： Sanjay Goswami ,  Avi Kliger ,  Edward Boyd ,  Yitshak Ohana ,  Leo Montreuil

IPC: H04Q11/00 ,  H04L5/00

CPC classification number: H04B10/27 ,  H04L5/0007 ,  H04L5/001 ,  H04Q11/0067 ,  H04Q2213/1301 ,  H04Q2213/13389

Abstract: Embodiments include, but are not limited to, systems and methods for enabling Orthogonal Frequency Division Multiple Access (OFDMA) in the upstream in an Ethernet Passive Optical Network over Coax (EPoC) network. Embodiments include systems and methods for translating Ethernet Passive Optical Network (EPON) upstream time grants to OFDMA resources represented by individual subcarriers of an upstream OFDMA frame. In an embodiment, the translation of EPON upstream time grants to OFDMA resources ensures that Coaxial Network Units (CNUs) sharing an OFDMA frame do not use overlapping subcarriers within the frame. Embodiments further include systems and methods for timing upstream transmissions by the CNUs in order for the transmissions to be received within the same upstream OFDMA frame at a Fiber Coax Unit (FCU). Embodiments further include systems and methods for re-generating a data burst from OFDMA resources for transmission from the FCU to an Optical Line Terminal (OLT).

Abstract translation: 实施例包括但不限于在同轴（EPoC）网络中的以太网无源光网络中的上游中实现正交频分多址（OFDMA）的系统和方法。 实施例包括用于将以太网无源光网络（EPON）上行时间授权转换为由上行OFDMA帧的各个子载波所表示的OFDMA资源的系统和方法。 在一个实施例中，EPON上行时间授权到OFDMA资源的转换确保共享OFDMA帧的同轴网络单元（CNU）不使用该帧内的重叠子载波。 实施例还包括用于定时CNU的上行传输的系统和方法，以便在光纤同轴电缆单元（FCU）的同一上行OFDMA帧内接收传输。 实施例还包括从用于从FCU发送到光线路终端（OLT）的OFDMA资源重新生成数据突发的系统和方法。

公开(公告)号：US09191274B2

公开(公告)日：2015-11-17

申请号：US14512800

申请日：2014-10-13

Applicant: Broadcom Corporation

Inventor： Philippe Klein ,  Avi Kliger ,  Yitshak Ohana

IPC: H04L12/24 ,  H04L12/28 ,  H04L29/06 ,  H04N7/10

CPC classification number: H04L41/08 ,  H04L12/2801 ,  H04L12/2803 ,  H04L63/08 ,  H04L63/083 ,  H04L63/162 ,  H04L65/4076 ,  H04N7/102

Abstract: Systems and methods for push button configuration of devices are provided. One system comprises one or more circuits configured to determine that a configuration button on the second device has been activated and determine whether a configuration button has been activated on a first device or a third device within a time interval from a time at which the button on the second device is activated. The circuits are configured to, in response to determining that the configuration button has been activated on either the first device or the third device within the time interval, allow the second device to be authenticated. The circuits are configured to, in response to determining that the configuration button has not been activated on either the first device or the third device within the time interval, prevent admission of the second device. The network may be a wired network, such as a MoCA network.

Abstract translation: 提供了设备按钮配置的系统和方法。 一个系统包括配置成确定第二设备上的配置按钮已经被激活并且确定在从按钮开启的时间段起的第一设备或第三设备上的配置按钮是否被激活的一个或多个电路 第二个设备被激活。 电路被配置为响应于在该时间间隔内确定配置按钮在第一设备或第三设备上被激活，允许第二设备被认证。 响应于在该时间间隔内确定配置按钮在第一设备或第三设备上未被激活的响应被配置为防止允许第二设备。 网络可以是有线网络，例如MoCA网络。

公开(公告)号：US20150326418A1

公开(公告)日：2015-11-12

申请号：US14802223

申请日：2015-07-17

Applicant: BROADCOM CORPORATION

Inventor： Hong Liu ,  Avi Kliger ,  Jeffrey S. Putnam ,  Leo Montreuil ,  Jonathan S. Min ,  Ravi Rajagopal

IPC: H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2634 ,  H04L27/2684 ,  H04L27/2697 ,  H04L29/0653

Abstract: A communication device is operative to generate and orthogonal frequency division multiplexing (OFDM) symbol that includes one or more data and ranging modulation symbols. The data and ranging modulation symbols may be included within different sub-carriers of the OFDM symbol. The OFDM symbol is used to generate an OFDM symbol pair in the frequency domain (FDOM). After conversion from the FDOM to the time domain (TDOM), the OFDM symbol pair may then undergoes post-processing in the TDOM before transmission. Such post-processing may include the addition of cyclic prefix (CP) and cyclic suffix (CS) to the OFDM symbol pair in the TDOM as well as filtering using a window function. The OFDM symbol may be generated as an orthogonal frequency division multiple access (OFDMA) symbol, and two were more OFDM symbols or OFDMA symbols may be arranged in a frame.

Abstract translation: 通信设备可操作以产生包括一个或多个数据和测距调制符号的正交频分复用（OFDM）符号。 数据和测距调制符号可以包括在OFDM符号的不同子载波中。 OFDM符号用于在频域（FDOM）中生成OFDM符号对。 在从FDOM转换到时域（TDOM）之后，OFDM符号对可以在传输之前在TDOM中进行后处理。 这种后处理可以包括向TDOM中的OFDM符号对添加循环前缀（CP）和循环后缀（CS）以及使用窗口功能的过滤。 OFDM符号可以被生成为正交频分多址（OFDMA）符号，并且可以在帧中布置两个更多的OFDM符号或OFDMA符号。

公开(公告)号：US09088455B2

公开(公告)日：2015-07-21

申请号：US14104044

申请日：2013-12-12

Applicant: BROADCOM CORPORATION

Inventor： Hong Liu ,  Avi Kliger ,  Jeffrey S. Putnam ,  Leo Montreuil ,  Jonathan S. Min ,  Ravi Rajagopal

IPC: H04L27/28 ,  H04B17/00 ,  H04L29/06 ,  H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2627 ,  H04L27/2634 ,  H04L27/2684 ,  H04L27/2697 ,  H04L29/0653

Abstract: A communication device is operative to generate and orthogonal frequency division multiplexing (OFDM) symbol that includes one or more data and ranging modulation symbols. The data and ranging modulation symbols may be included within different sub-carriers of the OFDM symbol. The OFDM symbol is used to generate an OFDM symbol pair in the frequency domain (FDOM). After conversion from the FDOM to the time domain (TDOM), the OFDM symbol pair may then undergoes post-processing in the TDOM before transmission. Such post-processing may include the addition of cyclic prefix (CP) and cyclic suffix (CS) to the OFDM symbol pair in the TDOM as well as filtering using a window function. The OFDM symbol may be generated as an orthogonal frequency division multiple access (OFDMA) symbol, and two were more OFDM symbols or OFDMA symbols may be arranged in a frame.

公开(公告)号：US09031143B2

公开(公告)日：2015-05-12

申请号：US14069258

申请日：2013-10-31

Applicant: Broadcom Corporation

Inventor： Ba-Zhong Shen ,  Richard S. Prodan ,  Avi Kliger ,  Leo Montreuil ,  Jonathan S. Min ,  Tak K. Lee ,  Kelly Brian Cameron ,  Hau Thien Tran

IPC: H04L1/00 ,  H04L25/03 ,  H04L25/06 ,  H04L27/26

CPC classification number: H04L1/0054 ,  H04L1/0045 ,  H04L25/03159 ,  H04L25/03318 ,  H04L25/067 ,  H04L27/2649

Abstract: A communication device is configured adaptively to process a receive signal based on noise that may have adversely affected the signal during transition via communication channel. The device may be configured to identify those portions of the signal of the signal that are noise-affected (e.g., noise-affected sub-carriers of an orthogonal frequency division multiplexing (OFDM) signal), or the device may receive information that identifies those portions of the signal that are noise-affected from one or more other devices. The device may be configured to perform the modulation processing of the received signal to generate log-likelihood ratios (LLRs) for use in decoding the signal. Those LLRs associated with noise-affected portions of the signal are handled differently than LLRs associated with portions of the signal that are not noise-affected. The LLRs may be scaled based on signal to noise ratio(s) (SNR(s)) associated with the signal (e.g., based on background noise, burst noise, etc.).

Abstract translation: 通信设备被自适应地配置为基于可能在经由通信信道的转换期间不利地影响信号的噪声来处理接收信号。 该设备可以被配置为识别受到噪声影响的信号的信号的那些部分（例如，正交频分复用（OFDM）信号的噪声影响的子载波），或者设备可以接收标识那些 来自一个或多个其他装置的噪声影响的部分信号。 该设备可以被配置为执行接收信号的调制处理，以产生用于解码信号的对数似然比（LLR）。 与信号的噪声影响部分相关联的那些LLR被处理与不受噪声影响的信号的部分相关联的LLR不同。 可以基于与信号相关联的信噪比（SNR（s））来缩放LLR（例如，基于背景噪声，突发噪声等）。

公开(公告)号：US20140079399A1

公开(公告)日：2014-03-20

申请号：US14029180

申请日：2013-09-17

Applicant: Broadcom Corporation

Inventor： Sanjay GOSWAMI ,  Avi Kliger ,  Edward Boyd ,  Yitshak Ohana ,  Leo Montreuil

IPC: H04Q11/00

CPC classification number: H04B10/27 ,  H04L5/0007 ,  H04L5/001 ,  H04Q11/0067 ,  H04Q2213/1301 ,  H04Q2213/13389

Abstract: Embodiments include, but are not limited to, systems and methods for enabling Orthogonal Frequency Division Multiple Access (OFDMA) in the upstream in an Ethernet Passive Optical Network over Coax (EPoC) network. Embodiments include systems and methods for translating Ethernet Passive Optical Network (EPON) upstream time grants to OFDMA resources represented by individual subcarriers of an upstream OFDMA frame. In an embodiment, the translation of EPON upstream time grants to OFDMA resources ensures that Coaxial Network Units (CNUs) sharing an OFDMA frame do not use overlapping subcarriers within the frame. Embodiments further include systems and methods for timing upstream transmissions by the CNUs in order for the transmissions to be received within the same upstream OFDMA frame at a Fiber Coax Unit (FCU). Embodiments further include systems and methods for re-generating a data burst from OFDMA resources for transmission from the FCU to an Optical Line Terminal (OLT).

Abstract translation: 实施例包括但不限于在同轴（EPoC）网络中的以太网无源光网络中的上游中实现正交频分多址（OFDMA）的系统和方法。 实施例包括用于将以太网无源光网络（EPON）上行时间授权转换为由上行OFDMA帧的各个子载波所表示的OFDMA资源的系统和方法。 在一个实施例中，EPON上行时间授权到OFDMA资源的转换确保共享OFDMA帧的同轴网络单元（CNU）不使用该帧内的重叠子载波。 实施例还包括用于定时CNU的上行传输的系统和方法，以便在光纤同轴电缆单元（FCU）的同一上行OFDMA帧内接收传输。 实施例还包括从用于从FCU发送到光线路终端（OLT）的OFDMA资源重新生成数据突发的系统和方法。

公开(公告)号：US20130128898A1

公开(公告)日：2013-05-23

申请号：US13741334

申请日：2013-01-14

Applicant: Broadcom Corporation

Inventor： Avi Kliger ,  Yitshak Ohana

IPC: H04B7/212

CPC classification number: H04B7/212 ,  H04L1/1607 ,  H04L1/1838 ,  H04L1/1887 ,  H04L12/2801 ,  H04L12/2861 ,  H04L69/324

Abstract: System and methods for transmitting packets over a network are provided. A system includes a network access coordinator (NAC) configured to communicate with first and second nodes via a network backbone. The NAC is configured to coordinate access of the first and second nodes to the network backbone. The NAC is configured to receive, from the first node in a first time period, a first reservation request to transmit a first packet to the second node. The NAC is configured to allocate, in response to the first reservation request, a first slot in a second time period for the first node to transmit the first packet to the second node. The NAC is configured to allocate a second slot for the second node to transmit, to the first node, a first reply that includes an indicator of whether the second node received the first packet.

Abstract translation: 提供了通过网络传输数据包的系统和方法。 一种系统包括被配置为经由网络主干与第一和第二节点进行通信的网络接入协调器（NAC）。 NAC被配置为协调第一和第二节点到网络主干的接入。 NAC被配置为在第一时间段中从第一节点接收向第二节点发送第一分组的第一预留请求。 NAC被配置为响应于第一预留请求而在第二时间段中分配用于第一节点向第二节点发送第一分组的第一时隙。 NAC被配置为为第二节点分配第二时隙以向第一节点发送包括第二节点是否接收到第一分组的指示符的第一应答。