Abstract: A device for mitigating effects of impulse noise on data packet transfer over a communication line is configured at least partially according to physical layer characteristics of the communication line. As an example, a data packet retransmission device might be configured to retransmit in response to each retransmission request an amount of data packets depending on the physical layer interleaving delay ID and/or data bit rate DBR.

Abstract: To zap towards a TV channel, a join request is sent from the viewer towards the TV server (101). Thereupon, a low resolution version of the TV channel is temporarily unicasted towards the viewer. In a second step, a switch is realized from the low resolution version of the TV channel to a multicasted high resolution version of the TV channel.

Abstract: A device (112) for mitigating effects of impulse noise on data packet transfer over a communication line (102) is configured at least partially according to physical layer characteristics of the communication line (102). As an example, a data packet retransmission device (112) might be configured to retransmit in response to each retransmission request an amount of data packets depending on the physical layer interleaving delay ID and/or data bit rate DBR.

Abstract: A Digital Subscriber Line [DSL] access network consisting of a home network (HN) at a user premises, an access network (AN) comprising a Digital Subscriber Line Access Multiplexer [DSLAM], an aggregation network (GN) consisting of aggregation switches (AS), and a content network (CN). The content network comprises a Broadband Remote Access Server [BRAS] and local servers (LS) providing connectivity to the Internet for a user (S) in the home network, a Remote Authentication Dial-In User Server [RADIUS] connected to the BRAS for authentication, authorization and accounting of the user, and a digital broadcast network (DN) adapted to broadcast audio and video content to the user. The aggregation network is adapted to couple the BRAS and the digital broadcast network to the DSLAM of the access network. The access network is adapted to couple the DSLAM to a Set Top Box [STB] of the home network.

Abstract: The present invention relates to a receiver at the head-end or a centralizing unit side in a communications system or network for signals in the upstream direction which is the direction from user to head-end or a centralizing unit that is linked to a number of users, the number being equal to or larger than one.

Abstract: A receiver is disclosed at the head-end or a centralizing unit side in a communications system or network for signals in the upstream direction which is the direction from user to head-end or a centralizing unit that is linked to a number of users, the number being equal to or larger than one. The receiver is suited for the reception of burst mode signals. The receiver performs a channel estimation on a per-burst basis in real time or essentially immediate. The channel estimation is necessary to do successful data detection of modulated data. The receiver of the invention performs the channel estimation and data detection in one compact all-digital mechanism that has no tuning parts. The reception method works in an aspect according to the principle of a matched filter receiver, but stores no local copy of the required matched waveform. Rather, a copy of the matched waveform is included in the preamble of the signals.