| 摘要 |
<p>Termination unit, arranged for communication of data over a channel comprising a plurality of frequency multiplexed sub-channels, and the termination unit comprising a tone ordering table and further comprising receiving means for receiving data to be transmitted over the channel; channel sending means connected to the receiving means and connectable to a communication line for transmitting over the channel the data received by the receiving means, wherein groups of bits to be transmitted over the channel, are each subsequently assigned to one of the sub-channels in accordance with a tone ordering table; channel receiving means connectable to a communication line for receiving data transmitted by a further termination unit over the channel; and tone ordering table change means for changing the tone ordering table without interruption of the data communication, comprising tone ordering table change request determination means connected to the channel receiving means for determining the reception of a tone ordering table change request sent by the further termination unit; tone ordering table change signalling means connected to the channel sending means for determining the moment of tone ordering table change and signalling the moment to the further termination unit; and wherein from the moment of tone ordering table change, the channel sending means assign subsequent bits to be transmitted, in accordance with the tone ordering table determined by the received tone ordering table change request.</p> |
