Abstract: A system and method for facilitating communication with segment routing in a cable modem network environment may be provided. A pseudowire (PW) control packet including segment routing information including a PW segment identifier (SID) for establishing a data session between the RPD and a network element over a packet switched network is received at a remote physical device (RPD). The PW SID may be indicative of a segment in the packet switched network to be used for communicating PW data packets of the data session. The PW control packet and the PW data packets being are emulations of a point-to-point connection between the RPD and the network element. A mapping between the PW SID and the data session is written into a segment table of the RPD.

Abstract: One embodiment is a method including extending a policy server to provide per subscriber policies to a cable modem (CM) and a cable modem termination system (CMTS), receiving, at the policy server, a request for a policy profile from a cable modem termination system (CMTS), accessing a subscriber database to determine the policy profile, and communicating the policy profile to the CMTS. In an example, the policy server is a packet cable multimedia policy server of a cable network.

Abstract: An example method for scheduling in full duplex cable network environments is provided and includes categorizing a plurality of cable modems in a cable network into interference groups, scheduling upstream transmissions and downstream receptions for cable modems in each interference group, such that no cable modem of any one interference group transmits upstream in a frequency range simultaneously as another cable modem in the same interference group receives downstream in the frequency range, generating scheduling information of the scheduling, and transmitting the scheduling information to the cable modems.

Abstract: Designs for a front end for suppressing adjacent channel interference (ACI) and adjacent leakage interference (ALI) in a full duplex cable modem (CM) for a Data Over Cable Service Interface Specification (“DOCSIS”) network are described. The CM includes an upstream (US) signal path receiving a digital US input signal and transmitting an analog-converted US signal in a US frequency range to a cable modem termination system (CMTS); a downstream (DS) signal path receiving an analog DS signal in a DS frequency range and converting the analog DS signal into a digital DS signal; and an echo cancellation (EC) circuit configured to subtract, from at least one of the analog DS signal and the digital DS signal, a correction signal generated from the digital US input signal or a correction signal generated from the analog-converted US signal to generate an echo-cancelled digital DS input signal without ACI and ALI.

Abstract: A method is described and in one embodiment includes providing a physical connection between a node and a user equipment at a subscriber premises via a cable connection, wherein the node comprises a Data Over Cable Service Interface Specification (“DOCSIS”) remote PHY device (“RPD”) collocated with a cellular small cell device; receiving at the node a cellular downlink (“DL”) data signal from a cellular network connected to the cellular small cell device; combining the received cellular DL data signal with a DOCSIS downstream (“DS”) signal from a cellular network connected to the DOCSIS RPD to create a combined DS data signal; and forwarding the combined DS data signal from the node to the user equipment via the cable connection.

Abstract: An example method for interference suppression in full duplex cable network environments is provided and includes providing a baseband (BB) reference signal on a first pathway to a signal processor, converting the BB reference signal to a first radio frequency (RF) signal, transmitting the first RF signal on the first pathway, the first RF signal being reflected back on a second pathway, receiving a second RF signal on the second pathway, the second RF signal including interferences from the reflections, generating an RF reference signal based on signals on the first pathway, providing the RF reference signal to the signal processor, providing the second RF signal to the signal processor, and reducing, by the signal processor, interferences in the second RF signal from reflections of the first RF signal based on the BB reference signal and the RF reference signal.

Abstract: 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.

Abstract: An example communication system comprises a media access control (MAC) scheduler in a cable network, and a full band transceiver. The MAC scheduler implements a two-dimensional transmission-reception (T-R) coordination scheme among a plurality of cable modems in the cable network. According to the T-R coordination scheme, the cable modems are categorized into interference groups, such that no cable modem of any one interference group transmits upstream in a frequency range simultaneously as another cable modem in the same interference group receives downstream in the frequency range, facilitating full duplex communication in the cable network across the frequency range. The full band transceiver implements an adaptive interference cancellation scheme, which suppresses at a receiver of the respective component, a signal transmitted by a transmitter of the respective component.

Abstract: An example method for characterizing interference relationships in full duplex cable network environments is provided and includes generating a global interfered list for a plurality of cable modems in the cable network and for a plurality of frequency ranges, generating a global interfering list for the plurality of cable modems and for the plurality of frequency ranges, assigning respective downstream reception frequency ranges and upstream transmission frequency ranges for the plurality of cable modems based on the global interfered list and the global interfering list, and transmitting to the cable modems corresponding assignment information comprising the respective assigned downstream reception frequency ranges and upstream transmission frequency ranges.

Abstract: A method is provided in one example embodiment and includes predicting a user average data rate for a cable modem; establishing a minimum bandwidth grant size and a maximum bandwidth grant size for the cable modem based on the predicted user average data rate; receiving from the cable modem a request for a particular amount of bandwidth; performing an overgrant if the particular amount of bandwidth is less than the minimum bandwidth grant size, in which the overgrant comprises granting to the cable modem more than the requested particular amount of bandwidth; and performing an undergrant if the particular amount of bandwidth is greater than the maximum bandwidth grant size, in which the undergrant comprises granting to the cable modem less than the requested particular amount of bandwidth.

Abstract: A method is provided in one example embodiment and includes predicting a user average data rate for a cable modem; establishing a minimum bandwidth grant size and a maximum bandwidth grant size for the cable modem based on the predicted user average data rate; receiving from the cable modem a request for a particular amount of bandwidth; performing an overgrant if the particular amount of bandwidth is less than the minimum bandwidth grant size, in which the overgrant comprises granting to the cable modem more than the requested particular amount of bandwidth; and performing an undergrant if the particular amount of bandwidth is greater than the maximum bandwidth grant size, in which the undergrant comprises granting to the cable modem less than the requested particular amount of bandwidth.

Abstract: One embodiment is a method and includes receiving at a termination element of a first network a bandwidth report (“BWR”), in which the BWR includes information regarding a data transmission opportunity over a second network for at least one endpoint data; scheduling a first network transmission opportunity for the at least one endpoint data using information derived from the received BWR; and receiving from a first network forwarding device the at least one endpoint data in accordance with the scheduled first network transmission opportunity.

Abstract: An example apparatus for supporting digital pre-distortion (DPD) and full duplex (FDX) in cable network environments is provided and includes a first path for signals being transmitted out of the apparatus, a second path for signals being received into the apparatus, a DPD actuator located on the first path, an amplifier located on the first path, an echo cancellation (EC) actuator located on the second path, and a data interface including a plurality of channels connecting the apparatus to a signal processor. DPD coefficients, EC coefficients and delay parameters are provided over the data interface from the signal processor to the apparatus. The DPD actuator predistorts signals on the first path using the DPD coefficients compensating for distortions introduced by the amplifier, and the EC actuator reduces interferences in signals on the second path using the EC coefficients and the delay parameters, facilitating FDX communication by the apparatus.

Abstract: An example method for facilitating a high power efficient amplifier through digital pre-distortion (DPD) in cable network environments is provided and includes receiving a first signal and a second signal at a DPD coefficient finder in an amplifier module of a cable modem, the second signal including transformations of the first signal from distortions due to channel effects and amplifier nonlinearity, synchronizing the first signal and the second signal, removing the channel effects, computing a first vector representing an inverse of the nonlinearity of the amplifier, computing a second vector representing an inverse of certain channel effects and providing DPD coefficients to a DPD actuator, the DPD coefficients including the first vector and the second vector, the DPD actuator predistorting an input signal to the amplifier module with the DPD coefficients, such that an output signal from the amplifier module retains linearity relative to the input signal.

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: 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: A method, a system, and an apparatus provide for a cable modem termination system (CMTS). The CMTS may include a virtual machine configured to provide a plurality of virtual CMTSs (vCMTSs). The CMTS may also include a plurality of subscriber groups. Each subscriber group of the plurality of subscriber groups may be assigned to a vCMTS of the plurality of vCMTSs. Additionally, each vCMTS is configured to provide a process.

Abstract: An access point that supports downstream and upstream communication from and to a Modular Cable Modem Termination System (M-CMTS) core to and from customer premises equipment (CPE), respectively, implements an Upstream External PHY Interface (UEPI) protocol with the M-CMTS core for control of the upstream communication. The access point receives from the M-CMTS core first UEPI control messages comprising information to configure one or more pathways with the access point for data plane upstream communication and control plane communication. The access point transmits to the M-CMTS core second UEPI control messages including a spectrum management message to manage upstream spectrum between the access point and the M-CMTS core, and a range request message to request ranging information so that the CPE can transmit upstream packets within an upstream timeslot, wherein at least one second UEPI control message is forwarded from the (CPE).

Abstract: An example communication system comprises a media access control (MAC) scheduler in a cable network, and a full band transceiver. The MAC scheduler implements a two-dimensional transmission-reception (T-R) coordination scheme among a plurality of cable modems in the cable network. According to the T-R coordination scheme, the cable modems are categorized into interference groups, such that no cable modem of any one interference group transmits upstream in a frequency range simultaneously as another cable modem in the same interference group receives downstream in the frequency range, facilitating full duplex communication in the cable network across the frequency range. The full band transceiver implements an adaptive interference cancellation scheme, which suppresses at a receiver of the respective component, a signal transmitted by a transmitter of the respective component.

Abstract: An example method for scheduling in full duplex cable network environments is provided and includes categorizing a plurality of cable modems in a cable network into interference groups, scheduling upstream transmissions and downstream receptions for cable modems in each interference group, such that no cable modem of any one interference group transmits upstream in a frequency range simultaneously as another cable modem in the same interference group receives downstream in the frequency range, generating scheduling information of the scheduling, and transmitting the scheduling information to the cable modems.