| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a telecommunication arrangement with modems MCO; MCPE having a receiving module URx; DRx able to receive channels of signals via a communication line. <P>SOLUTION: The arrangement preferably operates according to the xDSL protocol. Storage means USN, DSN; LDN of a receiving module of each modem store operational conditions of a channel, preferably a "channel condition model" corresponding to the "worst case". The channel condition model is determined by previously measured operation of this channel and/or by a channel condition model managed externally to the modem, and which is stored in the storage means before the initialization of the modem. In different variants, the channel condition model is a model of the noise level, the signal-to-noise ratio, the actual or the maximum bitloading b<SB>i</SB>per carrier of the channel. The channel condition model is further updated at regular time intervals during initialization or showtime. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
