H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 1/08 (2006.01) H04L 1/00 (2006.01) H04L 1/18 (2006.01) H04L 1/20 (2006.01) H04L 29/06 (2006.01) H04L 29/08 (2006.01)
Patent
CA 2338077
Apparatus and method for minimizing a retransmission of signals and messages when an errored message is received during an xDSL negotiation procedure of a communication session. A receiving section (52) monitors received data related to a Frame Check Sequence of an xDSL negotiation procedure. When the receiving section (52) determines that an errored message is received, a retransmission request device (54) transmits a retransmission request message. The retransmission request message indicates which correct message was lastly received. However, if a predetermined number of errored messages occur, the communication session is terminated.
L'invention concerne un appareil et un procédé pour minimiser la retransmission de signaux et de messages lorsqu'un message erroné est reçu au cours d'une procédure de négociation xDSL d'une session de communication. Une partie de réception (52) surveille les données reçues relatives à une séquence de contrôle de trame d'une procédure de négociation xDSL. Lorsque la partie de réception (52) détermine qu'un message erroné est reçu, un dispositif de demande de retransmission (54) transmet un message de demande de retransmission signalant le dernier message correct reçu. Néanmoins, si un nombre prédéterminé de messages erronés apparaît, la session de communication est stoppée.
Matsushita Graphic Communication Systems Inc.
Panasonic Communications Co. Ltd.
Sim & Mcburney
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