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

IPC: H04L12/26 ,  H04L12/28

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。

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

IPC: H04B1/38 ,  H04L29/08 ,  H04L5/00 ,  H04L12/28 ,  H04L27/26 ,  H04N21/61 ,  H04N21/426

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。

公开(公告)号：US20150063484A1

公开(公告)日：2015-03-05

申请号：US14471301

申请日：2014-08-28

Applicant: BROADCOM CORPORATION

Inventor： Avraham Kliger ,  Tak Kwan Lee ,  Richard Stephen Prodan ,  Ba-Zhong Shen ,  Yitshak Ohana

IPC: H04L27/26 ,  H04L1/00 ,  H03M13/27

CPC classification number: H04L27/2627 ,  H03M13/09 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/23 ,  H03M13/258 ,  H03M13/2707 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2957 ,  H04L1/0042 ,  H04L27/2634

Abstract: A communication device includes a communication interface and a processor. In one example, the processor generates an orthogonal frequency division multiplexing (OFDM) symbol that includes information modulated within sub-carriers and then interleaves the sub-carriers of the OFDM symbol to generate an interleaved OFDM symbol. This interleaving of the sub-carriers operates to write the plurality of sub-carriers to rows of a two dimensional (2D) array and read the plurality of sub-carriers from columns of the 2D array. This interleaving also operates to read a column of the columns using a bit-reversed address of the column when the bit-reversed address is less than a number of the columns and using the address of the column when the bit-reversed address is greater than or equal to the number of the columns. The processor transmits, via the communication interface, the interleaved OFDM symbol to another communication device.

Abstract translation: 通信设备包括通信接口和处理器。 在一个示例中，处理器产生包括在子载波内调制的信息的正交频分复用（OFDM）符号，然后对OFDM符号的子载波进行交织以产生交错的OFDM符号。 子载波的这种交织操作以将多个子载波写入二维（2D）阵列的行，并从2D阵列的列读取多个子载波。 当比特反转地址小于列数时，使用位反转地址比特反转地址大于等于列的地址时，该交织也可以使用列的位反转地址来读列。 或等于列数。 处理器经由通信接口将交错的OFDM符号发送到另一通信设备。

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。

公开(公告)号：US20140079102A1

公开(公告)日：2014-03-20

申请号：US14029204

申请日：2013-09-17

Applicant: Broadcom Corporation

Inventor： Avi KLIGER ,  Yitshak Ohana ,  Niki Pantelias ,  Leo Montreuil ,  Jonathan S. Min ,  Edward Boyd ,  Mark Laubach ,  Victor Hou

IPC: H04L5/00

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 modem 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调制解调器之间链接，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。

公开(公告)号：US10079808B2

公开(公告)日：2018-09-18

申请号：US14944133

申请日：2015-11-17

Applicant: Broadcom Corporation

Inventor： Philippe Klein ,  Avraham Kliger ,  Yitshak Ohana

IPC: H04L9/32 ,  H04L29/06 ,  H04L9/08 ,  H04L9/14

CPC classification number: H04L63/0428 ,  H04L9/0863 ,  H04L9/14 ,  H04L9/3226 ,  H04L63/065

Abstract: A device may include a processor circuit configured to transmit, over a network medium, a request for transmission of a data communication to a first device of a network, and receive, over the network medium, a grant of the request. When the first device is associated with a first security profile, the processor circuit may be configured to encrypt the data communication based at least on a first password associated with the first security profile. When the first device is associated with a second security profile, the processor circuit may be configured to encrypt the data communication based at least on a second password associated with the second security profile. The second password may be associated with a higher password strength than the first password. The processor circuit may be configured to transmit, over the network medium, the encrypted data communication to the first device in response to the grant.

公开(公告)号：US09548836B2

公开(公告)日：2017-01-17

申请号：US14137345

申请日：2013-12-20

Applicant: Broadcom Corporation

Inventor： Yitshak Ohana ,  Avi Kliger ,  Anatoli Shindler ,  Bazhong Shen

IPC: H04B15/00 ,  H04L1/00 ,  H04L1/20

CPC classification number: H04L1/0054 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/20

Abstract: The present disclosure is directed to a system and method for detecting burst noise. The system and method are described in the exemplary context of a cable modem system and can be used in such a system to specifically detect upstream burst noise. Once detected, the system and method can adjust the upstream receiver that receives data corrupted by the upstream burst noise to reduce the potentially deleterious effects that the burst noise can have on, for example, the packet error rate and/or data rate of the upstream receiver.

Abstract translation: 本公开涉及用于检测突发噪声的系统和方法。 在电缆调制解调器系统的示例性上下文中描述了系统和方法，并且可以在这种系统中用于专门检测上游突发噪声。 一旦检测到，系统和方法可以调整接收由上游突发噪声损坏的数据的上游接收机，以减少突发噪声可能产生的潜在的有害影响，例如上行的分组错误率和/或数据速率 接收器。

公开(公告)号：US08942220B2

公开(公告)日：2015-01-27

申请号：US14072618

申请日：2013-11-05

Applicant: Broadcom Corporation

Inventor： Avi Kliger ,  Yitshak Ohana ,  Philippe Klein

IPC: H04B7/212 ,  H04L12/813 ,  H04L12/24 ,  H04L12/911 ,  H04L12/927

CPC classification number: H04L47/20 ,  H04L41/5022 ,  H04L47/781 ,  H04L47/805

Abstract: An example of a method of policing a flow in a home network such as a MoCA network may include calculating a policing period, calculating a first credit parameter, initializing a first usage variable at a beginning of the policing period, receiving a packet at an ingress node, calculating the first usage variable based on a first formula, determining whether the first usage variable is less than or equal to the first credit parameter, and making a reservation request when the first usage variable is less than or equal to the first credit parameter. The reservation request is different from an opportunistic reservation request. Examples of a system and a computer program product having instructions stored in a tangible computer-readable storage medium are also provided.

Abstract translation: 在家庭网络（例如MoCA网络）中管理流量的方法的示例可以包括计算管制周期，计算第一信用参数，在监管周期开始时初始化第一使用变量，在入口处接收分组 节点，基于第一公式计算第一使用变量，确定第一使用变量是否小于或等于第一信用参数，以及当第一使用变量小于或等于第一信用参数时进行预约请求 。 预订请求与机会预约请求不同。 还提供了具有存储在有形计算机可读存储介质中的指令的系统和计算机程序产品的示例。

公开(公告)号：US20140126345A1

公开(公告)日：2014-05-08

申请号：US14072991

申请日：2013-11-06

Applicant: BROADCOM CORPORATION

Inventor： Yitshak Ohana ,  Avi Kliger ,  Thomas J. Kolze

IPC: H04L1/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0057 ,  H04L1/0068 ,  H04L1/0071 ,  H04L27/2602

Abstract: A communication device includes a media access control (MAC) and a physical layer (PHY) processor and supports multi-profile communications with one or more other communication devices. The PHY processor selects a profile based on one or more characteristics of a communication pathway between the device and the one or more other communication devices. A profile may include operational parameters such as modulation coding set (MCS), forward error correction (FEC) and/or error correction code (ECC), a number of bits per symbol per sub-carrier and/or sub-carrier mapping (e.g., such as based on orthogonal frequency division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA)), cyclic prefix, channel(s) used in transmission, bit-filling and shortening, unicast and/or multicast transmission, and/or other operational parameters. The PHY processor also may be configured to operate within at least two different operational modes including a first mode of packet aggregation and a second mode of bit-filling and shortening.

Abstract translation: 通信设备包括媒体访问控制（MAC）和物理层（PHY）处理器，并且支持与一个或多个其他通信设备的多简档通信。 PHY处理器基于设备和一个或多个其他通信设备之间的通信路径的一个或多个特性来选择简档。 简档可以包括诸如调制编码集（MCS），前向纠错（FEC）和/或纠错码（ECC）的操作参数，每个子载波和/或子载波映射（例如， 例如基于正交频分复用（OFDM）或正交频分多址（OFDMA）），循环前缀，在传输中使用的信道，比特填充和缩短，单播和/或多播传输，和/或 其他操作参数。 PHY处理器还可以被配置为在至少两种不同的操作模式中操作，包括第一模式的分组聚合和第二种比特填充和缩短模式。

公开(公告)号：US20130301653A1

公开(公告)日：2013-11-14

申请号：US13940174

申请日：2013-07-11

Applicant: Broadcom Corporation

Inventor： Avraham KLIGER ,  Yitshak Ohana ,  Moshe Tarrab

IPC: H04L29/06

CPC classification number: H04L69/14 ,  H04L12/2805 ,  H04L69/32

Abstract: A communication device having a Media Access Control (MAC) layer and a physical (PHY) layer may include a first physical channel for transferring at least one packet between the PHY layer and the MAC layer. The communication device may further include a second physical channel for transferring, to a transmitting device, a first table that indicates a number of bits to be loaded onto each of a plurality of tones and a second table that indicates a transmission power for the plurality of tones. The PHY layer may receive the at least one packet from the transmitting device over the plurality of tones and may transfer the at least one packet to the MAC layer via the first physical channel.

Abstract translation: 具有媒体访问控制（MAC）层和物理（PHY）层的通信设备可以包括用于在PHY层和MAC层之间传送至少一个分组的第一物理信道。 通信设备还可以包括第二物理信道，用于向发送设备传送指示要加载到多个音调中的每一个的多个比特的第一表，以及指示多个音调的发送功率的第二表 音调。 PHY层可以通过多个音调从发送设备接收至少一个分组，并且可以经由第一物理信道将至少一个分组传送到MAC层。