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公开(公告)号：US11677516B1
公开(公告)日：2023-06-13
申请号：US17388419
申请日：2021-07-29
Applicant: Cable Television Laboratories, Inc.
Inventor： Karthik Sundaresan , Jingjie Zhu
IPC: H04L5/00
CPC classification number: H04L5/0007 , H04L5/006 , H04L5/0044 , H04L5/0046
Abstract: The present disclosure generally relates to systems, methods and software for selecting a spectral segment for important downlink and/or uplink transmissions. Particularly, the spectral segment may be a set of contiguous subcarriers within a plurality of subcarriers transmitting over a channel to a population of cable modems. In an embodiment, the systems, methods and software disclosed herein optimize placement of a physical link channel (PLC) within an OFDM channel. In an embodiment, the system, methods and software disclosed herein optimize placement of a ranging region within an OFDMA channel.
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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.
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公开(公告)号：US11277280B2
公开(公告)日：2022-03-15
申请号：US16358663
申请日：2019-03-19
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： Gregory C. White , Karthik Sundaresan
Abstract: Methods, systems, and devices for Content-Centric Networking (CCN) are described. In some cases, a node may receive a CCN packet from an upstream node and communicate the CCN packet to one or more downstream nodes (e.g., that previously requested the CCN packet). In a first case, the node may establish a persistent internet protocol (IP) tunnel with the downstream node and communicate the CCN packet to the downstream node by the persistent IP tunnel. Here, a cable modem between the node and the downstream node may not decode the CCN packet. In a second case, the node may append an identifier to the CCN packet prior to communicating the CCN packet to the one or more downstream nodes. Here, the identifier may indicate to the downstream nodes which CCN packets are relevant to the downstream node.
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公开(公告)号：US20190305876A1
公开(公告)日：2019-10-03
申请号：US16377030
申请日：2019-04-05
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Karthik Sundaresan , Gregory C. White , Jingjie Zhu
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.
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公开(公告)号：US20180343206A1
公开(公告)日：2018-11-29
申请号：US15987836
申请日：2018-05-23
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Gregory Charles White , Steve Glennon , Karthik Sundaresan , Luis Alberto Campos
IPC: H04L12/869 , H04L12/28 , H04L12/851 , H04L12/801
CPC classification number: H04L47/58 , H04L12/2801 , H04L47/11 , H04L47/2441 , H04L47/6215
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.
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Patent Agency Ranking
公开(公告)号：US20240372744A9
公开(公告)日：2024-11-07
申请号：US18092380
申请日：2023-01-02
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Karthik Sundaresan , Gregory C. White , Jingjie Zhu
IPC: H04L12/28 , H04L41/0893
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.
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公开(公告)号：US11979328B1
公开(公告)日：2024-05-07
申请号：US17242535
申请日：2021-04-28
Applicant: Cable Television Laboratories, Inc.
Inventor： Junwen Zhang , Bernardo Huberman , Jingjie Zhu , Karthik Sundaresan , Zhensheng Jia
IPC: H04L12/851 , G06N3/04 , G06N3/08 , H04L47/2441
CPC classification number: H04L47/2441 , G06N3/04 , G06N3/08
Abstract: A method for traffic flow classification in a communication network includes (1) identifying a traffic flow in communication network traffic, (2) extracting features of the traffic flow, and (3) using a machine learning model, classifying the traffic flow at least partially based on the features of the traffic flow. The features of the traffic flow include, for example, a distribution of packet size values of a sliding window sample of the traffic flow, a distribution of inter-arrival time values of a sliding window sample of the traffic flow, standard deviation of data packet size, average of data packet size, standard deviation of data packet inter-arrival time, and average of data packet inter-arrival time.
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公开(公告)号：US10979741B2
公开(公告)日：2021-04-13
申请号：US15992015
申请日：2018-05-29
Applicant: CABLE TELEVISION LABORATORIES, INC.
Inventor： James Kim , Karthik Sundaresan , Thomas Kee
IPC: H04N21/231 , H04N21/238 , H04N21/24 , H04N21/61 , H04N21/643 , H04N21/241 , H04N21/2385
Abstract: Systems and methods presented herein provide for a software defined network (SDN) controller in a cable television system that virtualizes network elements in the cable television system to provide content delivery and data services through the virtualized network elements. In one embodiment, the SDN controller is operable in a cloud computing environment to balance data traffic through the virtualized network elements. For example, the SDN controller may abstract Layer 2 Control Protocol (L2CP) frame processing of the network elements into the cloud computing environment to relieve the network elements from the burdens of Ethernet frame processing. In this regard, the SDN controller comprises a L2CP decision module that determines how L2CP should be processed for the network elements in the cable television system.
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公开(公告)号：US10944684B2
公开(公告)日：2021-03-09
申请号：US16660620
申请日：2019-10-22
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Gregory Charles White , Steve Glennon , Karthik Sundaresan , Luis Alberto Campos , Robert J. Briscoe
IPC: H04L12/865 , H04L12/841 , H04L12/863 , H04L12/851
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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公开(公告)号：US10944500B2
公开(公告)日：2021-03-09
申请号：US15729058
申请日：2017-10-10
Applicant: CABLE TELEVISION LABORATORIES, INC
Inventor： Karthik Sundaresan , Gregory Charles White
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.
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