Abstract: Methods, systems, and apparatus for configuring a network device are disclosed. In one aspect, a network address that is assigned to the network device by a network address server is detected by an equipment configuration device. The network address server differs from the network device. In response to detecting the network address, a set of connection parameters that connect the network device to a controller device is transmitted by the equipment configuration device and to the network device. The set of connection parameters is transmitted outside of communications, transmitted by the network address server, that assigned the network address to the network device.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to receive downstream traffic over a first wavelength; a first upstream optical transmitter having a first data rate; a second upstream optical transmitter having a second data rate that is higher than the first data rate; and a controller configured to direct upstream traffic to one of the first upstream optical transmitter or the second upstream optical transmitter depending on a traffic type of the traffic. Traffic having a control plane traffic type is directed to the first upstream optical transmitter and traffic having a data plane traffic type is directed to the second upstream optical transmitter.

Abstract: In a vectored Discrete Multi-Tone (DMT) system that employs trellis encoding, tones of a DMT signal are paired by a trellis encoder, and parity information is shared between the paired tones. In accordance with some embodiments, the tones are paired based on an interpolation pattern that is used to calculate vectoring coefficients in an effort to mitigate interpolation error. Specifically, a tone having a vectoring coefficient with a relatively large interpolation error may be paired with a tone having a vectoring coefficient with a relatively small interpolation error thereby reducing the peak interpolation error among paired tones within the system. By reducing the peak interpolation error in the paired tones, the number of communication lines included in a vectoring group can be increased without significantly degrading signal quality.

Abstract: An optical transmission system includes a laser module that generates a modulated optical waveform including both amplitude and frequency modulation; and an optical shaping filter that converts at least part of the frequency modulation to additional amplitude modulation. The optical transmission system is tuned by: measuring, based on the amplitude modulation of a filtered waveform output from the optical shaping filter, an average output power of the optical shaping filter; and adjusting a temperature of the laser module to a first temperature at which a target output condition is achieved, including: adjusting the temperature of the laser module to a first target temperature at which the average output power of the filtered waveform satisfies a first output criteria, or adjusting the temperature of the laser module to a second target temperature at which the output power and extinction ratio of the filtered waveform satisfy a second output criteria.

Abstract: A driver circuit for a transmitter includes a main path in parallel with an error correction path used for feed-forward error correction. The main path has an amplifier for amplifying a data signal to be transmitted from the transceiver. In parallel with the amplifier is a feedforward error correction circuit that provides an error correction signal that compensates for distortion introduced by the amplifier when the error correction signal is combined with the amplifier's output. The error correction circuit is designed to have a high impedance output so that voltage swings in the data signal do not create a demand for significant current from the feedforward error correction circuit, thereby reducing the current of the error correction signal. As an example, it is possible for the current of the error correction signal to substantially match that which is required to cancel the amplifier distortion, thereby minimizing distortion of the signal.

Abstract: Methods, devices, systems and computer readable medium for utilizing interfaces of a network access device are provided. A network access device includes a subscriber interface with at least one subscriber port and a network interface. Methods include (i) checking whether configuration data can be obtained via the network interface; (ii) if the configuration data cannot be obtained from the network interface, checking a predefined condition at the subscriber interface; and (iii) if the predefined condition is fulfilled, enabling the subscriber interface for configuration purposes. Furthermore, an according device and a system are suggested.

Abstract: A time-division duplexing (TDD) system reduces crosstalk associated with signals communicated by coordinated dynamic time assignment (cDTA) transceivers. In some embodiments, the TDD system has both cDTA transceivers and legacy transceivers. Based on the dynamic allocation of downstream and upstream timeslots for the cDTA transceivers, timeslots for the legacy transceivers are selectively muted in an effort to limit the amount of near-end crosstalk (NEXT) that occurs in the TDD system. Thus, subscriber lines coupled to both cDTA transceivers and legacy transceivers may be bound within the same binder without significantly increasing crosstalk to unacceptable levels.

Abstract: Methods, systems, and apparatus for Passive Optical Network (PON) wavelength bonding are disclosed. In one aspect, a first frame of data to a first optical network unit (ONU) is transmitted by an optical line terminal (OLT) over a first wavelength. While the first frame of data is being transmitted to the first ONU over the first wavelength, a first portion of a second frame of data to a second ONU is transmitted by the OLT over a second wavelength. After transmission of the first frame of data over the first wavelength has completed and while the first portion of the second frame of data is still being transmitted to the second ONU over the second wavelength, a second portion of the second frame of data to the second ONU is transmitted by the OLT over the first wavelength.

Abstract: Telecommunications enclosures are described in this document. In one aspect, a telecommunications enclosure includes side panels having seals and an enclosure top connected, independent of a frame, to top ends of the side panels. The enclosure top has an enclosure top outer end that extends between the side panels and includes a seal. An interior panel is connected, independent of a frame, to side panels and has an interior panel outer end that extends between the side panels. The interior panel is separated from the enclosure top by a first distance and separated by a second distance from bottom ends of the side panels. A removable door is formed to engage the seals when the removable door is secured to the frameless telecommunications enclosure.

Abstract: Methods, systems, and apparatus for generating a delay profile for different priority classifications. In one aspect, multiple latency probes are transmitted by a source node to a target network node. Each latency probe has a different priority code. A response to each of the transmitted latency probes is received by the source node from the target network node. Based on the received responses, a delay profile for the target network node is generated by the source node. The delay profile provides multiple network latency measurements for packets transmitted to the target network node with the different priority codes. A user interface of a display is updated to visually present at least a portion of the delay profile.

Abstract: Methods and apparatus for communicating synchronous digital signals through an asynchronous domain are disclosed. In one aspect a method includes receiving a first synchronous digital signal of a first domain, wherein the first synchronous digital signal is generated by a first device for communication to a second device; encapsulating the first synchronous digital signal of the first domain into a first asynchronous packet of a second domain; and transmitting the first asynchronous packet to an asynchronous network of the second domain.

Abstract: A communication system has a network access device (NAD) that is designed to deliver Plain Old Telephone Service (POTS) along with high-speed data to Customer Premises Equipment (CPE). The NAD is backpowered by the CPE across a subscriber line. When backpower is provided from the CPE, circuitry (referred to as a “POTS signaling element”) within the network access device converts POTS control signaling to digital data for transmission to the CPE. The band vacated by the POTS control signaling is used for the power signal on the subscriber line. In the absence of backpower, components of the network access device are bypassed, thereby providing POTS in the event of a power failure. The NAD receives advance warning of the backpowering so that it can disable the bypassing in order to prevent the power signal from leaking through the NAD to the network.

Abstract: Methods, systems, and computer readable medium for initializing communication for multiple transceivers. In one aspect, a method includes launching an initialization process of a first transceiver. The initialization process includes obtaining, for a second transceiver, a set of handshake information and inserting the set of handshake information of the second transceiver into one or more registers that are transmitted with first handshake information of the first transceiver during initialization of the first transceiver. The initialization process includes initiating a communications channel for the second transceiver over the same physical communications medium using the set of handshake information that was inserted into the one or more registers, including transmitting, by the first transceiver, the first handshake information of the first transceiver together with the set of handshake information for the second transceiver over the same physical communications medium using the given set of tones.

Abstract: Methods, systems, and apparatus for correlating communications measurements are disclosed. In one aspect, a communications measurement of a maintenance entity (ME) is received. The communications measurement is stored and correlated with a maintenance entity group (MEG) identifier and an ME identifier received with the communications measurement. The stored communications measurement is registered with one or more previously received communications measurements. Each previously received communications measurement is associated with an availability indicator corresponding to an availability of the ME at a time the particular communications measurement was obtained. An availability of the ME during a given time interval is determined based on availability indicators of consecutive communications measurements for the ME.

Abstract: An attenuation circuit with stages having constant dB steps between stages is provided. The attenuation circuit can be configured as a ladder network using resistors having three different values. A first resistor can be connected between the last stage of the attenuation circuit and ground and have a first predetermined resistance. One or more second resistors can be connected in each stage and have a second predetermined resistance based on the first predetermined resistance and the dB step between stages. One or more third resistors can be connected in parallel to the first resistor for the remaining stages and have a third predetermined resistance based on the first predetermined resistance and the dB step between stages.

Abstract: Methods, systems, and apparatus for providing content in a multicast stream are disclosed. In one aspect, analytical information of a plurality of individual data sessions between user devices and a content server is received. The analytical information of each of the plurality of individual data sessions is based on a packet inspection analysis of data transmitted in the respective individual data sessions. A same set of content being delivered to at least a portion of the user devices based on the analytical information is determined. In response to the determination, a multicast stream condition is determined to be met based on at least one performance metric of a network over which the same set of content is being delivered. In response to determining that the multicast stream condition has been met, a multicast stream that provides the content in a looping stream is initiated.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for managing operation of telecommunications devices. In one aspect, a method includes actions of executing a container program that lacks scripts that manage operation of telecommunications devices that interact with a cloud platform, monitoring messages generated by the telecommunications, filtering the messages to select a subset of messages that trigger execution of the scripts by the container program, identifying, for each selected message in the subset of messages and from an index of available scripts, a particular script that is executed in response to receipt of the selected message, merging each particular script with the container program to create a management program that manages operation of the telecommunications devices based on the subset of messages, and managing operation of the telecommunications devices with the management program.

Abstract: Methods, systems, and apparatus for communicating over a radio link by devices with broadband connectivity are disclosed. In one aspect, a telecommunications device includes a first transceiver, a second transceiver, and a state monitor. The first transceiver communicates over a broadband link. The second transceiver communicates over a radio link. The radio link is a Low-Power Wide-Area Network (LPWAN) link. The state monitor includes one or more processes that monitor a state of the telecommunications device, and in response to the state of the telecommunications device being one of a plurality of pre-specified states, transmit, using the second transceiver, data specifying the state of the telecommunications device over the radio link.

Abstract: A telecommunication system employs dynamic shaping based on current load conditions for at least one congestion point in order to achieve a fair allocation of network bandwidth. In one exemplary embodiment, shaper control logic communicates with virtual scheduler/shapers to learn current load conditions for at least one congestion point. Using such load information, the shaper control logic dynamically controls the shaper rates for the virtual scheduler/shapers so that packet flows for services of the same class passing through the congestion point achieve a desired (e.g., same or similar) performance regardless of which virtual scheduler/shaper is communicating each respective packet flow.

Abstract: Systems and methods are provided for an optical network unit (ONU) to automatically set its output power level for messages to be transmitted on a passive optical network. The ONU can autonomously determine the appropriate power level based on information provided to the ONU by an optical line terminal (OLT) and characterization by the ONU of optical signals it receives from the fiber. Specifically, the OLT can provide the ONU with control data indicative of the power level used by the OLT to transmit the message and the desired power level of the OLT for messages from the ONU. The ONU can measure the power level of at least one message received from the OLT and determine the path loss based on the measured power and the control data. The ONU can then automatically determine a suitable power level for its response message such that unacceptable levels of crosstalk between channels are avoided without having to perform an iterative power-leveling process that otherwise may introduce significant delays.