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    MANAGING TIME OFFSET AND FREQUENCY DRIFT IN ASYNCHRONOUS DOCSIS REMOTE PHY NETWORK ENVIRONMENTS
    1.
    发明申请
    MANAGING TIME OFFSET AND FREQUENCY DRIFT IN ASYNCHRONOUS DOCSIS REMOTE PHY NETWORK ENVIRONMENTS 有权
    在异步DOCSIS远程物理网络环境中管理时间偏移和频率干扰

    公开(公告)号：US20150295669A1

    公开(公告)日：2015-10-15

    申请号：US14685403

    申请日：2015-04-13

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： John T. Chapman ,  Yi Tang ,  Lin Su ,  Tong Liu ,  Hang Jin

    IPC: H04J3/06

    CPC classification number: H04L5/0007 ,  H04B3/542 ,  H04J3/0667 ,  H04J3/0673 ,  H04L5/006 ,  H04L12/2801 ,  H04L27/2697 ,  H04L27/3405 ,  H04L27/345 ,  H04L47/12 ,  H04L47/27

    Abstract: An example method for managing time offset and frequency drift in asynchronous Data Over Cable Service Interface Specification (DOCSIS) Remote Physical layer (R-PHY) network environments is provided and includes receiving, at a first hardware device, time synchronization message from a remote second hardware device in the DOCSIS R-PHY network, determining a time difference between a first clock at the first hardware device and a second clock at the second hardware device from the time synchronization message; and re-stamping an event message based on the time difference.

    Abstract translation: 提供了用于在异步数据有线服务接口规范（DOCSIS）远程物理层（R-PHY）网络环境中管理时间偏移和频率漂移的示例性方法，包括在第一硬件设备处接收来自远程秒的时间同步消息 DOCSIS R-PHY网络中的硬件设备，从时间同步消息确定第一硬件设备的第一时钟与第二硬件设备的第二时钟之间的时间差; 并根据时差重新标记事件消息。

    DOWNSTREAM EXTERNAL PHYSICAL INTERFACE TRANSPORT IN DOCSIS 3.1 NETWORK ENVIRONMENTS
    3.
    发明申请
    DOWNSTREAM EXTERNAL PHYSICAL INTERFACE TRANSPORT IN DOCSIS 3.1 NETWORK ENVIRONMENTS 有权
    DOCSIS中的下游物理接口运输3.1网络环境

    公开(公告)号：US20150295746A1

    公开(公告)日：2015-10-15

    申请号：US14685452

    申请日：2015-04-13

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： John T. Chapman ,  Jiening Ao ,  Brian Patrick Bresnahan ,  Pawel Piotr Sowinski ,  Lin Su

    IPC: H04L27/26 ,  H04B3/54 ,  H04L27/34

    CPC classification number: H04L5/0007 ,  H04B3/542 ,  H04J3/0667 ,  H04J3/0673 ,  H04L5/006 ,  H04L12/2801 ,  H04L27/2697 ,  H04L27/3405 ,  H04L27/345 ,  H04L47/12 ,  H04L47/27

    Abstract: An example method for Downstream External Physical Interface (DEPI) in Data Over Cable Service Interface Specification (DOCSIS) 3.1 network environments is provided and includes generating, at a Converged Cable Access Platform (CCAP) core, a DEPI-Packet Streaming Protocol (PSP) pseudo-wire (PW) packet including a PSP sub-layer header having a same length for a Quadrature Amplitude Modulation (QAM) channel and an Orthogonal Frequency-Division Multiplexing (OFDM) channel in the DOCSIS network environment, and transmitting the DEPI-PSP PW packet over a DEPI interface to a remote physical layer (R-PHY) entity.

    Abstract translation: 提供了一种在电缆数据服务接口规范（DOCSIS）3.1网络环境中的下行外部物理接口（DEPI）的示例方法，包括在聚合有线接入平台（CCAP）核心生成DEPI分组流协议（PSP） 伪线（PW）分组，其包括在DOCSIS网络环境中具有用于正交幅度调制（QAM）信道和正交频分复用（OFDM））信道的相同长度的PSP子层报头，并且发送DEPI-PSP PW分组通过DEPI接口连接到远程物理层（R-PHY）实体。

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