公开(公告)号：US20130051403A1

公开(公告)日：2013-02-28

申请号：US13661532

申请日：2012-10-26

Applicant: Broadcom Corporation

Inventor： John Ferdinand Sisto ,  Edward Wayne Boyd

IPC: H04L12/56

CPC classification number: H04L12/5695 ,  H04L47/22 ,  H04L47/2425 ,  H04L47/70 ,  H04L47/788 ,  H04L47/805 ,  H04L47/828

Abstract: One embodiment of the present invention provides a system that facilitates dynamic allocation of upstream bandwidth in a passive optical network which includes a central node and at least one remote node. Each remote node is coupled to at least one logical entity, which corresponds to a device or a user, that transmits upstream data to the central node and receives downstream data from the central node. The central node is coupled to an external network outside of the passive optical network through a shared out-going uplink.

Abstract translation: 本发明的一个实施例提供了一种有助于在包括中央节点和至少一个远程节点的无源光网络中动态分配上行带宽的系统。 每个远程节点耦合到至少一个对应于设备或用户的逻辑实体，该逻辑实体将上行数据发送到中央节点并从中央节点接收下游数据。 中央节点通过共享的外向上行链路耦合到无源光网络外部的外部网络。

公开(公告)号：US08964540B2

公开(公告)日：2015-02-24

申请号：US13661532

申请日：2012-10-26

Applicant: Broadcom Corporation

Inventor： John Ferdinand Sisto ,  Edward Wayne Boyd

IPC: G01R31/08 ,  H04L12/54 ,  H04L12/815 ,  H04L12/851 ,  H04L12/911 ,  H04L12/927

CPC classification number: H04L12/5695 ,  H04L47/22 ,  H04L47/2425 ,  H04L47/70 ,  H04L47/788 ,  H04L47/805 ,  H04L47/828

Abstract: One embodiment of the present invention provides a system that facilitates dynamic allocation of upstream bandwidth in a passive optical network which includes a central node and at least one remote node. Each remote node is coupled to at least one logical entity, which corresponds to a device or a user, that transmits upstream data to the central node and receives downstream data from the central node. The central node is coupled to an external network outside of the passive optical network through a shared out-going uplink.

Abstract translation: 本发明的一个实施例提供了一种有助于在包括中央节点和至少一个远程节点的无源光网络中动态分配上行带宽的系统。 每个远程节点耦合到至少一个对应于设备或用户的逻辑实体，该逻辑实体将上行数据发送到中央节点并从中央节点接收下游数据。 中央节点通过共享的外向上行链路耦合到无源光网络外部的外部网络。

公开(公告)号：US09369206B2

公开(公告)日：2016-06-14

申请号：US13974823

申请日：2013-08-23

Applicant: Broadcom Corporation

Inventor： Edward Wayne Boyd ,  Mark E. Laubach

IPC: H04J14/00 ,  H04B10/27 ,  H04L5/00 ,  H04Q11/00

CPC classification number: H04B10/27 ,  H04B10/516 ,  H04L5/0046 ,  H04L27/2627 ,  H04L27/36 ,  H04Q11/0067

Abstract: Embodiments provide systems and methods for enabling the support of multiple Ethernet Passive Optical Network over Coax (EPoC) channels, which can be bonded together into a single high-speed channel. The multiple EPoC channels can be configured according to available spectrum, such that they occupy one or more, frequency contiguous or separated, segments of the available spectrum. The size (number of sub-carriers) of each of the channels can be configured according to embodiments based on the available spectrum and/or other requirements (e.g., EPoC emission requirements, existing services, etc.). Further, within each channel, individual sub-carriers can be configured independently, including turning each sub-carrier on/off and/or specifying the symbol bit loading for the sub-carrier independently of other sub-carriers in the channel.

Abstract translation: 实施例提供了能够支持同轴电缆（EPoC）上的多个以太网无源光网络的系统和方法，其可以将其结合在一起成为单个高速信道。 可以根据可用频谱配置多个EPoC信道，使得它们占据可用频谱的一个或多个频率连续或分离的段。 根据实施例，可以基于可用的频谱和/或其他要求（例如，EPoC发射要求，现有服务等）来配置每个信道的大小（子载波的数量）。 此外，在每个信道内，各个子载波可以被独立地配置，包括接通/关闭每个子载波和/或独立于信道中的其他子载波指定副载波的符号位加载。

公开(公告)号：US09455785B2

公开(公告)日：2016-09-27

申请号：US14622498

申请日：2015-02-13

Applicant: Broadcom Corporation

Inventor： Edward Wayne Boyd ,  Ernie Bahm ,  Joel I. Danzig ,  Rennie Gardner ,  Lawrence Drew Davis

IPC: H04B10/00 ,  H04B10/27 ,  H04L12/28 ,  H04L12/24 ,  H04Q11/00

CPC classification number: H04B10/27 ,  H04L12/2801 ,  H04L41/0226 ,  H04Q11/0067 ,  H04Q2011/0079

Abstract: Embodiments enable a network operator to use any (and a single) network management system (NMS) that it desires to manage a network having mixed fiber to the home optical network units (ONUs) and coaxial connected cable modems. For example, embodiments enable a cable company operator to use a DOCSIS (Data Over Cable Service Interface Specification) NMS (which the cable company already uses to manage its DOCSIS network) to manage such mixed network, by a simple addition of a DOCSIS Mediation Layer (DML) module between the NMS and the optical line terminal (OLT). On the other hand, embodiments enable a telephone company operator to use a standard EPON (Ethernet Passive Optical Network) OLT NMS with minor OLT and OAM (Operations, Administration, and Maintenance) protocol modifications to manage the same mixed network.

公开(公告)号：US09337929B2

公开(公告)日：2016-05-10

申请号：US13973498

申请日：2013-08-22

Applicant: Broadcom Corporation

Inventor： Edward Wayne Boyd ,  Sanjay Goswami

IPC: H04B10/2575 ,  H04Q11/00 ,  H04L12/413 ,  H04L27/02 ,  H04L12/28

CPC classification number: H04B10/2575 ,  H04L12/2885 ,  H04L12/413 ,  H04L27/02 ,  H04Q11/0067 ,  H04Q11/0071

Abstract: Embodiments of the present invention exploit the existing capabilities of the Ethernet Passive Optical Network (EPON) MAC layer, designed for fiber optics communications, to provide a low cost MAC layer with upper layer connectivity over a hybrid fiber coaxial (HFC) network. In particular, embodiments allow for the EPON MAC to be used end-to-end (i.e., from an optical line terminal (OLT) to a coaxial network unit (CNU)) in a HFC network, thereby fully leveraging the packet processing capabilities, QoS functions, and management features of the EPON MAC. Furthermore, embodiments enable unified provisioning and management for both fiber and coaxial network units in a HFC network.

公开(公告)号：US09319759B2

公开(公告)日：2016-04-19

申请号：US13674648

申请日：2012-11-12

Applicant: Broadcom Corporation

Inventor： Brian Chaffins ,  Eric Lynskey ,  Ryan Hirth ,  Edward Wayne Boyd

IPC: H04Q11/00 ,  H04L12/28

CPC classification number: H04Q11/0067 ,  H04L12/2861 ,  H04Q2011/0077

Abstract: Embodiments reduce overhead in Ethernet Passive Optical Network (EPON) networks by reducing the amount of switching among Optical Network Units (ONUs) done by the Optical Line Terminal (OLT). In one embodiment, Logical Link Identifiers (LLIDs) hosted by the same ONU are linked at the OLT such that the OLT grants same ONU LLIDs consecutively when appropriate. This reduces the optics related delay associated with switching among ONUS. At the same time, the linking of LLIDs hosted by the same ONU allows for data from multiple LLIDs to be grouped together within a single Forward Error Correction (FEC) block at the ONU, when appropriate, reducing FEC overhead.

Abstract translation: 通过减少由光线路终端（OLT）完成的光网络单元（ONU）之间的切换量，实现减少以太网无源光网络（EPON）网络的开销。 在一个实施例中，由相同ONU托管的逻辑链路标识符（LLID）在OLT处链接，使得OLT在适当时连续授权相同的ONU LLID。 这减少了与ONUS之间切换相关的光学相关延迟。 同时，由相同ONU承载的LLID的链接允许来自多个LLID的数据在ONU的单个前向纠错（FEC）块中被组合在一起，在适当的情况下，减少FEC开销。

公开(公告)号：US20150304037A1

公开(公告)日：2015-10-22

申请号：US13973498

申请日：2013-08-22

Applicant: Broadcom Corporation

Inventor： Edward Wayne Boyd ,  Sanjay Goswami

IPC: H04B10/2575 ,  H04L27/02

CPC classification number: H04B10/2575 ,  H04L12/2885 ,  H04L12/413 ,  H04L27/02 ,  H04Q11/0067 ,  H04Q11/0071

Abstract: Embodiments of the present invention exploit the existing capabilities of the Ethernet Passive Optical Network (EPON) MAC layer, designed for fiber optics communications, to provide a low cost MAC layer with upper layer connectivity over a hybrid fiber coaxial (HFC) network. In particular, embodiments allow for the EPON MAC to be used end-to-end (i.e., from an optical line terminal (OLT) to a coaxial network unit (CNU)) in a HFC network, thereby fully leveraging the packet processing capabilities, QoS functions, and management features of the EPON MAC. Furthermore, embodiments enable unified provisioning and management for both fiber and coaxial network units in a HFC network.

Abstract translation: 本发明的实施例利用为光纤通信设计的以太网无源光网络（EPON）MAC层的现有能力，以在混合光纤同轴（HFC）网络上提供具有上层连通性的低成本MAC层。 具体地，实施例允许在HFC网络中端对端（即，从光线路终端（OLT）到同轴网络单元（CNU））使用EPON MAC，从而充分利用分组处理能力， QoS功能和EPON MAC的管理功能。 此外，实施例能够对HFC网络中的光纤和同轴网络单元进行统一的供应和管理。

公开(公告)号：US20140133855A1

公开(公告)日：2014-05-15

申请号：US13674648

申请日：2012-11-12

Applicant: BROADCOM CORPORATION

Inventor： Brian CHAFFINS ,  Eric Lynskey ,  Ryan Hirth ,  Edward Wayne Boyd

IPC: H04B10/27

CPC classification number: H04Q11/0067 ,  H04L12/2861 ,  H04Q2011/0077

Abstract: Embodiments reduce overhead in Ethernet Passive Optical Network (EPON) networks by reducing the amount of switching among Optical Network Units (ONUs) done by the Optical Line Terminal (OLT). In one embodiment, Logical Link Identifiers (LLIDs) hosted by the same ONU are linked at the OLT such that the OLT grants same ONU LLIDs consecutively when appropriate. This reduces the optics related delay associated with switching among ONUS. At the same time, the linking of LLIDs hosted by the same ONU allows for data from multiple LLIDs to be grouped together within a single Forward Error Correction (FEC) block at the ONU, when appropriate, reducing FEC overhead.

Abstract translation: 通过减少由光线路终端（OLT）完成的光网络单元（ONU）之间的切换量，实现减少以太网无源光网络（EPON）网络的开销。 在一个实施例中，由相同ONU托管的逻辑链路标识符（LLID）在OLT处链接，使得OLT在适当时连续授权相同的ONU LLID。 这减少了与ONUS之间切换相关的光学相关延迟。 同时，由相同ONU承载的LLID的链接允许来自多个LLID的数据在ONU的单个前向纠错（FEC）块中被组合在一起，在适当的情况下，减少FEC开销。