Abstract: What is disclosed is a method for transmitting DSL data including establishing a communication link between a first unit and a second unit, the communication link selectively operable according to one of a plurality of management states, each of said management states defined by at least one fixed control parameters associated with a predetermined value. The method also includes initiating operation of the communication link according to a first management state; transmitting from the first unit a request to the second unit to modify said predetermined value; and implementing the request while said link is operating according to the first management state.

Abstract: At least one implementation herein enables interleaver and deinterleaver buffer modification during Showtime. That is, at least one implementation herein enables a multicarrier controller apparatus to reallocate interleaver and deinterleaver buffer memory to accommodate data rate changes in the upstream and downstream communication channels.

Abstract: One embodiment of the present invention relates to a network system having a first device, a second device, and a third device. The first device is coupled to a far end of a first network. The second device coupled to a far end of a second network. The third device is coupled to a near end of the second network. The third device provides a state transition request via the second network to the second device and the second device causes a transition of state in the first device.

Abstract: Methods and apparatus to transmit data are disclosed. An embodiment comprises providing transmission opportunities for data to be transmitted. A transmission opportunity can comprise a payload portion for payload. The method comprises transmitting the payload portion. The payload portion comprises a beginning portion from beginning of the payload portion and a completion portion to completion of the payload portion. An embodiment comprises transmitting control information after the beginning portion is transmitted and before the completion portion of the payload portion is transmitted. In an embodiment the control information is indicative of a future completion of the transmitting the payload portion.

Abstract: At least one implementation herein enables interleaver and deinterleaver buffer modification during Showtime. That is, at least one implementation herein enables a multicarrier controller apparatus to reallocate interleaver and deinterleaver buffer memory to accommodate data rate changes in the upstream and downstream communication channels.

Abstract: Embodiments related to retransmission in a communication system are described and depicted. In one embodiment, a retransmission entity repeats a transmission of a data transfer unit by the device after a predetermined number of other transmitted data transfer units has been transmitted. The retransmission entity may also determine whether a measure for a time period since the first transmission of the data transfer unit by the device has exceeded a predetermined threshold and to provide a final transmission of the data transfer unit based on the determining that the measure for the time period has exceeded the predetermined threshold.

Abstract: At least one implementation herein enables interleaver and deinterleaver buffer modification during Showtime. That is, at least one implementation herein enables a multicarrier controller apparatus to reallocate interleaver and deinterleaver buffer memory to accommodate data rate changes in the upstream and downstream communication channels.

Abstract: A communication device includes an application data interface, a first communication layer and a physical media interface. The first communication layer includes a first entity configured to process application data and a second entity configured to process operations, administrations and maintenance data. The communication device further includes a switching device. In a first power mode, the switching device couples the application data interface to the first entity of the first communication layer. In a second power mode, the switching device couples the application data interface to the second entity of the first communication layer.

Abstract: Methods and communication devices are described where in a first transmission mode a set of carriers having different carrier frequencies is used for payload data transmission, and in a second transmission mode at least some of the carriers of the set of carriers are refrained from being used, and the transmission power is reduced.

Abstract: Embodiments related to retransmission in data communication systems are described and depicted. In one embodiment, a data packet is received and separated to a plurality of data fragments. Information indicating whether a fragment of the plurality of fragments is to be protected by retransmission is provided or information indicating whether a group of fragments is to be protected by retransmission is provided. A request for retransmission from the second transceiver unit to the first transceiver unit may be generated. Based on the request, one or more identified data fragments may be retransmitted.

Abstract: One embodiment relates to a method of communicating data between a transmitter and a receiver of a communication system. In this method, a payload data stream is received from a network interface layer. The payload data stream includes data units eligible for retransmission and data units non-eligible for retransmission. These data units are grouped into containers, where a container is associated with a container identifier that distinguishes the container from other containers. The containers are grouped into data transmission units, where a data transmission unit includes at least one container along with redundancy information that facilitates error detection for that data transmission unit. The data transmission units are transmitted to the receiver as a transmission data stream. Other methods and systems are also disclosed.

Abstract: Embodiments related to retransmission in a communication system are described and depicted. In one embodiment, a retransmission entity repeats a transmission of a data transfer unit by the device after a predetermined number of other transmitted data transfer units has been transmitted. The retransmission entity may also determine whether a measure for a time period since the first transmission of the data transfer unit by the device has exceeded a predetermined threshold and to provide a final transmission of the data transfer unit based on the determining that the measure for the time period has exceeded the predetermined threshold.

Abstract: A plurality of cells are combined into a macro cell. In a macro header of the macro cell a full numbering information of a first cell of the plurality of cells is stored. For further cells of the plurality of cells other than the first cell, a deviation information indicating a deviation of a numbering information of the respective further cell from the full numbering information of the first cell or one of the further cells is stored. In some embodiments, additionally the headers of the individual cells are incorporated in the macro header.

Abstract: Within a communication system that includes multiple communication channels, a low-power mode of operation and a higher-power mode of operation are provided. Each channel is allocated to one of several groups, based on criteria such as whether power is allocated to that channel in low power mode, and whether power was allocated to that channel in a previous high power mode. Initial power levels for each channel for each mode are approximated using an interpolation rule known to both the receive and the transmitter. The system switches between modes according to a PMD pre-defined schedule. When a new power mode begins, the receiver measures signal power received on each channel and then transmits corrective information sufficient to allow adaptation of power levels to achieve PMD pre-defined levels of received power.

Abstract: Methods and coordination units (12) are provided which partition data transmission between a first network entity (10) and a second network entity between at least two communication channels (16, 19) which employ different technologies.

Abstract: The present disclosure relates to a communication system which, in accordance with one exemplary embodiment, a communication network for providing network services to at least one network device and at least one distribution point (DP) coupled to at least one network backbone. The at least one network device is located remote from the DP and coupled to the at least one network backbone via the at least one DP. The at least one DP is configured to receive a plurality of data units from the at least one network backbone in accordance with one or more communication protocols. A plurality of data frames, each having a header portion and a payload portion, are generated and each one of the received data units are mapped into one or more payload portions of the plurality of data frames. One or more of the plurality of data frames are mapped to a payload portion of at least one data transfer unit (DTU), which is then communicated to the at least one network device.

Abstract: Embodiments related to retransmission and a retransmission request are described and depicted.

Abstract: Methods and devices are provided where when an online parameter change is requested a data transfer unit is stopped, a parameter change is communicated and the data transfer unit is started with changed parameters to generate new data transfer units.

Abstract: The present disclosure relates generally to communication systems and more particularly to Digital Subscriber Line (DSL) and wireless communication systems. One embodiment relates to a method of processing data in a communication system. In this method, a data stream is received by a transmitter and packaged into discrete data units prior to transmission. The size of a data unit depends upon the details of the embodiment, and is estimated by communication system prior to data transmission. Once a data unit is transmitted from the transmitter to the receiver, the receiver sends an acknowledgement that the data unit is received. Knowledge of the roundtrip time delay between transmission of the data unit and reception of the acknowledgement allows the communication system to determine an optimum data unit size to maximize throughput. Other methods and systems are also disclosed.

Abstract: One embodiment of the present invention relates to a network system having a first device, a second device, and a third device. The first device is coupled to a far end of a first network. The second device coupled to a far end of a second network. The third device is coupled to a near end of the second network. The third device provides a state transition request via the second network to the second device and the second device causes a transition of state in the first device.