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21.发明申请公开(公告)号：US20130227373A1
公开(公告)日：2013-08-29
申请号：US13853486
申请日：2013-03-29
Applicant: BROADCOM CORPORATION
Inventor： Ba-Zhong Shen , Avi Kliger , Tak K. Lee , Anatoloi Shindler
IPC: H03M13/29
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.
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22.发明申请APPARATUS AND METHODS FOR REDUCTION OF TRANSMISSION DELAY IN A COMMUNICATION NETWORK 有权在通信网络中减少传输延迟的装置和方法公开(公告)号：US20130039186A1
公开(公告)日：2013-02-14
申请号：US13632023
申请日：2012-09-30
Applicant: Broadcom Corporation
Inventor： Yitshak Ohana , Philippe Klein , Avi Kliger , Stephen Palm
IPC: H04L12/24
CPC classification number: H04L49/206 , H04L12/2801 , H04L49/351
Abstract: Apparatus and methods for reducing latency in coordinated networks are provided. The apparatus and methods relate to a protocol that may be referred to as the Persistent Reservation Request (“p-RR”), which may be viewed as a type of RR (reservation request). p-RR's may reduce latency, on average, to one MAP cycle or less. A p-RR may be used to facilitate Ethernet audiovisual bridging. Apparatus and methods of the invention may be used in connection with coaxial cable based networks that serve as a backbone for a managed network, which may interface with a package switched network.
Abstract translation: 提供了用于减少协调网络中的延迟的装置和方法。 该装置和方法涉及可以被称为持续预留请求（p-RR）的协议，其可以被视为RR（预留请求）的类型。 p-RR可以将延迟平均减少到一个MAP周期或更短。 可以使用p-RR来促进以太网视听桥接。 本发明的装置和方法可以与用作被管网络的骨干网的基于同轴电缆的网络结合使用，该网络可以与封装交换网络接口。
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公开(公告)号：US09553898B2
公开(公告)日：2017-01-24
申请号：US14720803
申请日：2015-05-24
Applicant: BROADCOM CORPORATION
Inventor： Xuemin (Sherman) Chen , Avi Kliger , Philippe Klein
IPC: H04L1/00 , H04L29/06 , H04N21/4363 , H04L12/66
CPC classification number: H04L65/103 , H04L12/66 , H04L65/1026 , H04L65/4084 , H04L65/605 , H04N21/4363
Abstract: Gateway based and centric network management and coordination. Coordination and management of delivery of a source sequence, that has possibly undergone adaptive bit rate (ABR) encoding upstream to generate a number of respective fragments that may have different respective bit rates associated therewith, to one or more downstream, user, or client devices is achieved via appropriate communication network management and coordination performed by one or more communication devices within the system. In one instance, a home gateway communication device operates to perform such coordination management of a convergent network or convergent digital home network (CDHN). Consideration of any one or more local and/or remote conditions, parameters, etc. may be employed by such an application to ensure effective delivery of a source sequence to one or more client devices.
Abstract translation: 以网关为中心的网络管理与协调。 源序列的传送的协调和管理，其可以经历上游的自适应比特率（ABR）编码以生成可能具有与其相关联的不同相应比特率的多个相应片段到一个或多个下游，用户或客户端设备 通过由系统内的一个或多个通信设备执行的适当的通信网络管理和协调来实现。 在一种情况下，家庭网关通信设备操作以执行融合网络或融合数字家庭网络（CDHN）的协调管理。 这种应用可以考虑任何一个或多个本地和/或远程条件，参数等，以确保将源序列有效地传送到一个或多个客户端设备。
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公开(公告)号：US09531619B2
公开(公告)日：2016-12-27
申请号：US14102390
申请日：2013-12-10
Applicant: BROADCOM CORPORATION
Inventor： Avi Kliger , Philippe Klein , Yitshak Ohana
CPC classification number: H04L43/12 , H04L12/2801 , H04L12/2838 , H04L43/50
Abstract: A method for assessing channel performance in a network is provided. The network includes a network controller and nodes. The method preferably includes selecting a channel for assessment and allocating a first probe operation for use with the nodes. The method may also include, in response to the allocating, sending a first probe operation report message from each of the nodes to the network controller. The method may further include using the network controller to select a node to be a channel assessment operation node. In addition, the method may include selecting at least a portion of the nodes to participate in a channel assessment operation signal exchange. The method may also include moving the selected nodes to a different channel to perform a channel assessment operation on the different channel and using the channel assessment operation node to allocate a second probe operation on each of the selected nodes.
Abstract translation: 提供了一种用于评估网络中的信道性能的方法。 该网络包括网络控制器和节点。 该方法优选地包括选择用于评估的信道和分配用于节点的第一探测操作。 该方法还可以包括响应于分配，将来自每个节点的第一探测操作报告消息发送到网络控制器。 该方法还可以包括使用网络控制器来选择要作为信道评估操作节点的节点。 此外，该方法可以包括选择节点的至少一部分以参与信道评估操作信号交换。 该方法还可以包括将所选择的节点移动到不同的信道以在不同信道上执行信道评估操作，并且使用信道评估操作节点在每个所选节点上分配第二探测操作。
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公开(公告)号：US09479621B2
公开(公告)日：2016-10-25
申请号：US14830577
申请日：2015-08-19
Applicant: Broadcom Corporation
Inventor： Avi Kliger , Yitshak Ohana , Niki Pantelias , Leo Montreuil , Jonathan S. Min , Edward Boyd , Mark Laubach , Victor Hou
CPC classification number: H04L69/323 , H04L5/0046 , H04L5/0057 , H04L5/0092 , H04L5/0094 , H04L12/2861 , H04L27/2602 , H04L27/2627 , H04N21/42676 , H04N21/6118
Abstract: Embodiments include systems and methods for enabling a physical layer (PHY) link signaling channel between a network termination modem and a cable modem in a cable network. The PHY link signaling channel is embedded within the same multi-carrier channel as the data and enables PHY link up between the network termination modem and cable modern without involvement of higher layers (e.g., MAC). The PHY link signaling channel can be implemented in the downstream (from the network termination modem to the cable modem(s)) or in the upstream from a cable modem to the network termination modem. Embodiments are applicable to any known cable network, and particularly to cable networks implementing the DOCSIS and EPoC standards.
Abstract translation: 实施例包括用于在电缆网络中实现网络终端调制解调器和电缆调制解调器之间的物理层（PHY）链路信令信道的系统和方法。 PHY链路信令信道被嵌入在与数据相同的多载波信道中，并且使得PHY能够在网络终端调制解调器和电缆现代之间连接而不涉及较高层（例如，MAC）。 PHY链路信令信道可以在下游（从网络终端调制解调器到电缆调制解调器）或在电缆调制解调器的上游到网络终端调制解调器。 实施例可应用于任何已知的有线网络，特别适用于实现DOCSIS和EPoC标准的有线网络。
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Patent Agency Ranking
公开(公告)号：US09350582B2
公开(公告)日：2016-05-24
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
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.
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27.发明授权Very short size LDPC coding for physical and/or control channel signaling 有权用于物理和/或控制信道信令的非常短的LDPC编码公开(公告)号：US09178653B2
公开(公告)日：2015-11-03
申请号：US14068534
申请日：2013-10-31
Applicant: BROADCOM CORPORATION
Inventor： Ba-Zhong Shen , Avi Kliger , Tak K. Lee
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）。
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公开(公告)号：US09154261B2
公开(公告)日：2015-10-06
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
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）。
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公开(公告)号：US20150256560A1
公开(公告)日：2015-09-10
申请号：US14720803
申请日：2015-05-24
Applicant: BROADCOM CORPORATION
Inventor： Xuemin (Sherman) Chen , Avi Kliger , Philippe Klein
CPC classification number: H04L65/103 , H04L12/66 , H04L65/1026 , H04L65/4084 , H04L65/605 , H04N21/4363
Abstract: Gateway based and centric network management and coordination. Coordination and management of delivery of a source sequence, that has possibly undergone adaptive bit rate (ABR) encoding upstream to generate a number of respective fragments that may have different respective bit rates associated therewith, to one or more downstream, user, or client devices is achieved via appropriate communication network management and coordination performed by one or more communication devices within the system. In one instance, a home gateway communication device operates to perform such coordination management of a convergent network or convergent digital home network (CDHN). Consideration of any one or more local and/or remote conditions, parameters, etc. may be employed by such an application to ensure effective delivery of a source sequence to one or more client devices.
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公开(公告)号：US08953594B2
公开(公告)日：2015-02-10
申请号：US13942559
申请日：2013-07-15
Applicant: Broadcom Corporation
Inventor： Moshe Tarrab , Eliahu Shusterman , Yitshak Ohana , Avi Kliger
IPC: H04L12/56 , H04L12/935 , H04L12/28 , H04L27/26
CPC classification number: H04L49/3009 , H04L12/2801 , H04L27/2613
Abstract: Systems and methods for increasing preambles are provided. In some aspects, an electronic device configured for use as a node in a home network is provided. The electronic device includes a preamble generator configured to generate an outbound preamble for a data signal. The electronic device also includes a preamble increasing circuit configured to increase a size of the outbound preamble based on a switching signal.
Abstract translation: 提供了增加前导码的系统和方法。 在一些方面，提供了一种被配置为用作家庭网络中的节点的电子设备。 电子设备包括被配置为产生数据信号的出站前导码的前同步码生成器。 该电子设备还包括一个前导码增加电路，配置为基于切换信号增加出站前导码的大小。
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