Patent application number | Description | Published |
20110107172 | DOCSIS MAC-PHY Downstream Convergence Layer - Techniques are provided herein for transmitting data across multiple carriers using Motion Picture Experts Group (MPEG) Transport Stream (TS) packet multiplexing. At a processing device coupled to at least one subscriber device data associated with the at least one subscriber device are received. The data are encapsulated into MPEG-TS packets, where the MPEG-TS packet headers identify a single data channel for the at least one subscriber device. The MPEG-TS packets are multiplexed across a plurality of radio-frequency (RF) carriers for transmission, and the MPEG-TS packets are transmitted using the plurality of RF carriers. Each of the plurality of RF carriers have the same RF modulation, use the same symbol rate, and are driven by the same clock such that the carriers are synchronous. Techniques are also provided recover the data at the subscriber device. | 05-05-2011 |
20110199894 | MANAGING L2VPN CONNECTIVITY AFTER A FIBER NODE SPLIT - In one example, a routing protocol is used to propagate or flood information over a network of Cable Modem Termination Systems (CMTSs) in response to a fiber node split that changes which of the CMTSs a cable modem is coupled thereto. The network processes the information and dynamically changes a pseudowire placement to maintain the Layer 2 Virtual Private Network (L2VPN) connectivity among cable modems of different CMTSs after the fiber node split. | 08-18-2011 |
20130028253 | TRANSMISSION OF MULTI-CHANNEL MPEG - A system, and related methodology, are provided that are configured to receive, at a first network element such as a Universal Edge Quadrature Amplitude Modulator (UEQAM), multiple channels of data delivered as respective streams of packets, form a packet switched communication frame including a sub-layer header, encapsulate packets from the respective multiple channels into a payload field of the packet switched communication frame, identify the packets encapsulated in the payload field with respective tags in the sub-layer header, and transmit the packet switched communication frame to a second network element such as a Downstream Physical (DS-PHY) entity where the individual packets are recovered and mapped to selected respective stream processing resources based on respective tags. | 01-31-2013 |
20130070640 | Downstream Device Architecture and Control - Techniques are provided for controlling downstream Converged Cable Access Platform (CCAP) access points. At the CCAP access point having a network interface and a coaxial interface, control plane information is received from a Cable Modem Termination System (CMTS) via the network interface, where the control plane information is designed to configure the CCAP access point to enable communication over the network interface and the coaxial interface. At the CCAP access point, data plane and control plane information is received from the CMTS, and the data plane information transmitted via the coaxial interface to one or more customer termination devices. | 03-21-2013 |
20130070765 | MODULAR HEADEND ARCHITECTURE WITH DOWNSTREAM MULTICAST - Techniques are provided for enabling multicast traffic for a Cable Modem Termination System (CMTS) Modular Headend Architecture (MHA) system. The techniques allow a single modular CMTS core Media Access Control (MAC) domain to service a plurality of physical layer devices. When combined with an independent control plane, Downstream External physical layer (PHY) Interface (DEPI), and Upstream External physical layer (PHY) Interface (UEPI), a downstream PHY device becomes a completely independent and scalable network element. | 03-21-2013 |
20130070825 | GENERIC CONTROL PROTOCOL - Techniques are provided for controlling downstream Converged Cable Access Platform (CCAP) access points or other devices using a Generic Control Protocol (GCP). At the CCAP access point having a network interface and a coaxial interface, GCP control plane information is received from a Cable Modem Termination System (CMTS) via the network interface, where the control plane information is designed to configure the CCAP access point to enable communication over the network interface and the coaxial interface. GCP can be used to send data structures and register control messages across a network to embedded devices. | 03-21-2013 |
20130074138 | UPSTREAM EXTERNAL PHY INTERFACE FOR DATA AND CONTROL PLANE TRAFFIC - Techniques are provided for controlling downstream Converged Cable Access Platform (CCAP) access points. At the CCAP access point having a network interface and a coaxial interface, control plane information is received from a Cable Modem Termination System (CMTS) via the network interface, where the control plane information is designed to configure the CCAP access point to enable communication over the network interface and the coaxial interface. At the CCAP access point, data plane and control plane information is transmitted to the CMTS, and may include information from one or more customer termination devices. | 03-21-2013 |
20130322504 | SYSTEM AND METHOD FOR DISCOVERING AND VERIFYING A HYBRID FIBER-COAXIAL TOPOLOGY IN A CABLE NETWORK ENVIRONMENT - A method in an example embodiment can include polling a first cable modem in a cable network and receiving a first response message from the first cable modem identifying a downstream frequency detected by the first cable modem. The method further includes determining the downstream frequency is split between at least two fiber nodes and determining a cable modem termination system (CMTS) service group topology, where the topology includes the at least two fiber nodes. In specific embodiments, determining that the downstream frequency is split is based on at least the first response message from the first cable modem and a second response message from a second cable modem. In more specific embodiments, the method includes constructing a hybrid fiber-coaxial (HFC) topology map of the cable network based on at least the first and second response messages, where the HFC topology map indicates the CMTS service group topology. | 12-05-2013 |
20140079060 | MULTI-CHANNEL MPEG BETWEEN HEADEND AND FIBER NODE - A system and related methodology are provided that are configured to receive, at a first network element, multiple channels of video delivered as respective streams of packets, form a packet switched communication frame including a sub-layer header, encapsulate packets from the multiple channels of video into a payload field of the communication frame to obtain encapsulated packets, identify the encapsulated packets in the payload field with respective tags in the sub-layer header, designate the encapsulated packets in the payload field with respective launch values in the sub-layer header, and transmit the communication frame to a second network element. The first network element may be a universal edge quadrature amplitude modulator (UEQAM) and the second network element may be a relatively distant fiber node of a cable plant. The sub-layer header may also include Program Clock Reference (PCR) offset data that can be used for PCR re-stamping. | 03-20-2014 |
20140133330 | APPARATUS, SYSTEM, AND METHOD FOR PROVIDING ENERGY MANAGEMENT, PROFILES, AND MESSAGE BLOCKS IN A CABLE SERVICE ENVIRONMENT - A method is provided in one example and includes creating a plurality of profiles that describe one or more downstream modulations for each data-subcarrier in a channel to be used by a plurality of cable modems; receiving at least one testing measurement from the plurality of cable modems; and assigning a selected one of the plurality of profiles to each of the plurality of cable modems based, at least in part, on the one testing measurement that was received. | 05-15-2014 |
20140133352 | APPARATUS, SYSTEM, AND METHOD FOR PROVIDING ENERGY MANAGEMENT, PROFILES, AND MESSAGE BLOCKS IN A CABLE SERVICE ENVIRONMENT - A method is provided in one example and includes segmenting a plurality of cable modems into a plurality of groups; identifying traffic being received or transmitted by each of the plurality of cable modems that is below a threshold; and determining whether to move each of the plurality of cable modems into a low-power mode based, at least in part, on the traffic being received or transmitted by each of the plurality of cable modems. | 05-15-2014 |
20140133497 | APPARATUS, SYSTEM, AND METHOD FOR PROVIDING ENERGY MANAGEMENT, PROFILES, AND MESSAGE BLOCKS IN A CABLE SERVICE ENVIRONMENT - A method is provided in one example and includes generating one or more message blocks to be propagated along a narrow-band channel, wherein the message blocks are sub-components of a Physical Link Channel (PLC) frame; and communicating the PLC frame from a cable modem termination system (CMTS) to one or more cable modems. | 05-15-2014 |