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    Method and system for timing controlled signal transmission in a point to multipoint power line communications system
    1.
    发明授权
    Method and system for timing controlled signal transmission in a point to multipoint power line communications system 有权
    在点对多点电力线通信系统中定时控制信号传输的方法和系统

    公开(公告)号：US07369579B2

    公开(公告)日：2008-05-06

    申请号：US10671126

    申请日：2003-09-25

    申请人： Oleg Logvinov ,  Dirk Walvis ,  Lawrence F. Durfee

    发明人： Oleg Logvinov ,  Dirk Walvis ,  Lawrence F. Durfee

    IPC分类号： H04J3/06

    CPC分类号： H04L5/023 ,  H04B3/542 ,  H04B2203/5416 ,  H04B2203/5441 ,  H04B2203/545 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04L5/1484

    摘要： Power line communication (“PLC”) signals are transmitted between a head-end PLC transceiver coupled to multiple remote PLC transceivers over a electric power and communications distribution network in accordance with a timing controlled PLC data frame which determines how much bandwidth is allocated to downstream transmission from the head-end to the remotes and to upstream transmissions from one or more of the remotes to the head-end. The configuration of the timing controlled data frame can be dynamically modified to achieve higher bandwidth for the downstream traffic and to satisfy changing bandwidth needs of each remote.

    摘要翻译： 电力线通信（“PLC”）信号通过电力和通信分配网络在连接到多个远程PLC收发器的头端PLC收发器之间传输，该定时控制PLC数据帧确定向下游分配了多少带宽 从头端到遥控器的传输以及从一个或多个遥控器到头端的上行传输。 定时控制数据帧的配置可以动态修改，以实现下游流量的更高带宽，并满足每个远程的变化带宽需求。

    Passive optical network backhaul for powerline communications
    3.
    发明授权
    Passive optical network backhaul for powerline communications 有权
    无线光网络回程用于电力线通信

    公开(公告)号：US06844809B2

    公开(公告)日：2005-01-18

    申请号：US10309567

    申请日：2002-12-04

    申请人： Constantine N. Manis ,  Oleg Logvinov ,  Lawrence F. Durfee

    发明人： Constantine N. Manis ,  Oleg Logvinov ,  Lawrence F. Durfee

    IPC分类号： H04B3/54 ,  H04L12/28 ,  H04M11/04

    CPC分类号： H04L12/2885 ,  H04B3/54 ,  H04B3/542 ,  H04B2203/5445 ,  H04B2203/545 ,  H04B2203/5483 ,  H04B2203/5491 ,  H04L12/2856 ,  H04L2012/2843 ,  Y02B70/325 ,  Y04S20/228

    摘要： System, apparatus and method for connecting a passive optical network (“PON”) to a power line communications (“PLC”) network using a PLC HeadEnd installed at the PON to provide for distribution of high speed, broadband data communications services available on the PON to the PLC network using high speed, broadband PLC data signals. Where the PLC HeadEnd is installed on a medium voltage power distribution network, a PLC bypass unit is installed at a medium voltage/low voltage power transformer in the PLC network to provide PLC signal connectivity between the MV and LV networks. A PLC residential gateway is installed at each end user facility, such as a home or business, desiring broadband service available on the PON.

    摘要翻译： 使用安装在PON处的PLC HeadEnd将无源光网络（“PON”）连接到电力线通信（“PLC”）网络的系统，装置和方法，以提供可用于高速宽带数据通信服务 PON向PLC网络使用高速，宽带PLC数据信号。 PLC HeadEnd安装在中压配电网上的PLC旁路单元安装在PLC网络中的中压/低压电力变压器上，以提供MV和LV网络之间的PLC信号连接。 在每个终端用户设施（如家庭或业务）上安装了PLC住宅网关，期望PON上提供宽带服务。

    Method and system of channel analysis and carrier selection in OFDM and multi-carrier systems
    5.
    发明申请
    Method and system of channel analysis and carrier selection in OFDM and multi-carrier systems 有权
    OFDM和多载波系统中信道分析和载波选择的方法和系统

    公开(公告)号：US20080205534A1

    公开(公告)日：2008-08-28

    申请号：US11899853

    申请日：2007-09-07

    申请人： Oleg Logvinov ,  Lawrence F. Durfee ,  Dick Walvis

    发明人： Oleg Logvinov ,  Lawrence F. Durfee ,  Dick Walvis

    IPC分类号： H04K1/10 ,  H04J11/00

    CPC分类号： H04L25/0226 ,  H04L1/20 ,  H04L5/0048 ,  H04L5/006 ,  H04L25/0208 ,  H04L25/03299 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2662

    摘要： The invention presents a novel method to channel estimation in OFDM systems. The embodiment of this invention is a block of new logic and modifications performed to other components of the system, added to any existing OFDM receiver, which utilizes information available from other blocks as found in the receiver. This logic would improve the units' error rate because of the improved channel quality estimations it makes available. This improvement is made possible because both channel noise data and channel signal data are used in the estimation process. This data goes through a learning process over time and multiple data blocks for further improvements in the quality of the estimate. This improvement is possible without any direct communications with other remote units, but it could be used in a multi-node environment to improve the performance of the system as the whole.

    摘要翻译： 本发明提出了OFDM系统中信道估计的新颖方法。 本发明的实施例是对所述系统的其他部件执行的新的逻辑和修改的一个块，被添加到利用在接收机中发现的其他块可用的信息的任何现有OFDM接收机。 这个逻辑会改善单位的错误率，因为它提供了改善的信道质量估计。 这种改进是可能的，因为在估计过程中使用信道噪声数据和信道信号数据。 该数据经过一段时间的学习过程和多个数据块，以进一步提高估计的质量。 这种改进是可能的，没有与其他远程单元的任何直接通信，但是它可以在多节点环境中使用以提高整个系统的性能。