公开(公告)号：US20140133856A1

公开(公告)日：2014-05-15

申请号：US14076643

申请日：2013-11-11

Applicant: Broadcom Corporation

Inventor： Edward Boyd ,  Sanjay Goswami

IPC: H04Q11/00

CPC classification number: H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0077

Abstract: Embodiments provide systems and methods for supporting the use of multiple downstream modulation profiles in an Ethernet Passive Optical Network over Coax (EPoC) network. This includes, at the Fiber Coax Unit (FCU), processing downstream traffic to determine its intended destination Coaxial Network Unit (CNU) and using a customized downstream modulation profile for the traffic based on its intended destination CNU. In addition, with the downstream modulation profile used for the downstream traffic varying in time, a downstream map indicating upcoming downstream modulation profiles in the downstream traffic is sent along with the downstream traffic from the FCU. A CNU can read the downstream map to determine upcoming downstream modulation profiles in the downstream traffic and can decide to decode a given transmitted modulation profile in the downstream traffic when the transmitted modulation profiles matches one or more downstream modulation profiles associated with the CNU.

Abstract translation: 实施例提供了用于支持在同轴（EPoC）网络上的以太网无源光网络中使用多个下行调制简档的系统和方法。 这包括在光纤同轴电缆单元（FCU）处理下游流量以确定其预定目的地同轴网络单元（CNU），并根据其预定目的地CNU为流量使用定制的下行调制配置文件。 另外，随着用于下游业务在时间上变化的下行调制方案，下行流量中的下行流量的下行映射与来自FCU的下游流量一起被发送。 CNU可以读取下游地图以确定下游业务中的即将到来的下行调制简档，并且当传输的调制配置文件匹配与CNU相关联的一个或多个下行调制配置文件时，可以决定对下行业务中的给定传输调制简档进行解码。

公开(公告)号：US20130294775A1

公开(公告)日：2013-11-07

申请号：US13931221

申请日：2013-06-28

Applicant: Broadcom Corporation

Inventor： Ryan E. HIRTH ,  Edward W. Boyd ,  Sanjay Goswami

IPC: H04J14/02

CPC classification number: H04J14/0221 ,  H04B10/27 ,  H04J14/0282 ,  H04Q11/0067 ,  H04Q2011/0079

Abstract: A system and method for reducing power consumption in a Passive Optic Network (PON). The system comprises an optical line terminal (OLT), an optical network unit (ONU), a traffic-detection module configured to detect status of traffic to and from the ONU, and a power-management module configured to place the ONU in sleep mode based on the detected traffic status. The ONU includes transmitting and receiving components that are selectively powered down during the sleep mode based on a type of traffic in the ONU.

Abstract translation: 一种用于降低无源光网络（PON）功耗的系统和方法。 该系统包括光线路终端（OLT），光网络单元（ONU），被配置为检测来自ONU的业务的状态的流量检测模块以及被配置为将ONU置于睡眠模式的电源管理模块 基于检测到的流量状态。 ONU包括基于ONU中的业务类型在睡眠模式期间选择性地关机的发送和接收组件。

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：US08744261B2

公开(公告)日：2014-06-03

申请号：US13931221

申请日：2013-06-28

Applicant: Broadcom Corporation

Inventor： Ryan E. Hirth ,  Edward W. Boyd ,  Sanjay Goswami

IPC: H04B10/08 ,  H04B10/20 ,  H04J14/00

CPC classification number: H04J14/0221 ,  H04B10/27 ,  H04J14/0282 ,  H04Q11/0067 ,  H04Q2011/0079

Abstract: A system and method for reducing power consumption in a Passive Optic Network (PON). The system comprises an optical line terminal (OLT), an optical network unit (ONU), a traffic-detection module configured to detect status of traffic to and from the ONU, and a power-management module configured to place the ONU in sleep mode based on the detected traffic status. The ONU includes transmitting and receiving components that are selectively powered down during the sleep mode based on a type of traffic in the ONU.

Abstract translation: 一种用于降低无源光网络（PON）功耗的系统和方法。 该系统包括光线路终端（OLT），光网络单元（ONU），被配置为检测来自ONU的业务的状态的流量检测模块以及被配置为将ONU置于睡眠模式的电源管理模块 基于检测到的流量状态。 ONU包括基于ONU中的业务类型在睡眠模式期间选择性地关机的发送和接收组件。

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：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。