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    Systems and methods for DOCSIS profile management
    1.
    发明授权
    Systems and methods for DOCSIS profile management 有权

    公开(公告)号：US11611406B1

    公开(公告)日：2023-03-21

    申请号：US17195266

    申请日：2021-03-08

    Applicant: CABLE TELEVISION LABORATORIES, INC.

    Inventor： Karthik Sundaresan ,  Gregory Charles White

    IPC: H04L1/00 ,  H04L43/08 ,  H04L43/045 ,  H04L5/00 ,  H04B1/38

    Abstract: A profile optimizing method is provided for a downstream channel transmission of active subcarriers to user devices. The method includes steps of receiving channel measurement data from each user device for each subcarrier, calculating a maximum bit-loading value for each user device per subcarrier, grouping the user devices into a plurality of clusters based on a proximity of the maximum bit-loading values of a first user device to those of a second user device within the particular cluster, assigning each user device within the particular cluster to a single cluster profile. A plurality of single cluster profiles for the plurality of clusters forms a set of cluster profiles. The method further includes steps of determining a channel capacity ratio for the set of cluster profiles, and combining at least two single profiles of the set of cluster profiles into a coalesced profile pair.

    SYSTEMS AND METHODS FOR MULTI-CARRIER SIGNAL ECHO MANAGEMENT USING PSEUDO-EXTENSIONS
    4.
    发明申请
    SYSTEMS AND METHODS FOR MULTI-CARRIER SIGNAL ECHO MANAGEMENT USING PSEUDO-EXTENSIONS 有权

    公开(公告)号：US20230115010A1

    公开(公告)日：2023-04-13

    申请号：US17967560

    申请日：2022-10-17

    Applicant: CABLE TELEVISION LABORATORIES, INC.

    Inventor： Thomas H. Williams ,  Gregory Charles White

    IPC: H04L27/26 ,  H04L1/00 ,  H04L25/03

    Abstract: A receiver is configured to capture a plurality of linearly distorted OFDM symbols transmitted over a signal path. The receiver forms the captured OFDM symbols into an overlapped compound data block that includes payload data and at least one pseudo-extension, processes the overlapped compound block with circular convolution in the time domain using an inverse channel response, or frequency domain equalization, to produce an equalized compound block, and discards end portions of the equalized block to produce a narrow equalized block. The end portion corresponds with the pseudo-extension, and the narrow block corresponds with the payload data. The receiver cascades multiple narrow equalized blocks to form a de-ghosted signal stream of OFDM symbols. The OFDM symbols may be OFDM or OFDMA, and may or may not include a cyclic prefix, which will have a different length from the pseudo-extension.

    Systems and methods for multi-carrier signal echo management using pseudo-extensions
    5.
    发明授权
    Systems and methods for multi-carrier signal echo management using pseudo-extensions 有权

    公开(公告)号：US11476975B2

    公开(公告)日：2022-10-18

    申请号：US17315854

    申请日：2021-05-10

    Applicant: CABLE TELEVISION LABORATORIES, INC.

    Inventor： Thomas H. Williams ,  Gregory Charles White

    IPC: H04J11/00 ,  H04L1/00 ,  H04L27/26 ,  H04L25/03 ,  H04W72/04 ,  H04B1/707

    Abstract: A receiver is configured to capture a plurality of linearly distorted OFDM symbols transmitted over a signal path. The receiver forms the captured OFDM symbols into an overlapped compound data block that includes payload data and at least one pseudo-extension, processes the overlapped compound block with circular convolution in the time domain using an inverse channel response, or frequency domain equalization, to produce an equalized compound block, and discards end portions of the equalized block to produce a narrow equalized block. The end portion corresponds with the pseudo-extension, and the narrow block corresponds with the payload data. The receiver cascades multiple narrow equalized blocks to form a de-ghosted signal stream of OFDM symbols. The OFDM symbols may be OFDM or OFDMA, and may or may not include a cyclic prefix, which will have a different length from the pseudo-extension.

    Systems and methods for queue protection
    6.
    发明授权
    Systems and methods for queue protection 有权

    公开(公告)号：US11356380B1

    公开(公告)日：2022-06-07

    申请号：US17195192

    申请日：2021-03-08

    Applicant: CABLE TELEVISION LABORATORIES, INC.

    Inventor： Gregory Charles White ,  Steve Glennon ,  Karthik Sundaresan ,  Luis Alberto Campos ,  Robert J. Briscoe

    IPC: H04L47/6275 ,  H04L47/28 ,  H04L47/625 ,  H04L47/2441

    Abstract: A scheduling device for managing a packet queue of a communication gateway includes a receiving portion configured to receive data packets according to at least one communication protocol, a processor, and classification module configured to separate the received data packets into a first traffic queue and a second traffic queue separate from the first traffic queue. The first traffic queue includes a low latency service flow classified to have strict priority. The second traffic queue includes a primary service flow classified as having a classic priority. The classification module separates the received data packets so that those with a first indicator are sent to the first traffic queue and those without the first indicator are sent to the second traffic queue.

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