Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-05-23
2006-05-23
Nguyen, Brian (Department: 2661)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S506000, C370S310100
Reexamination Certificate
active
07050439
ABSTRACT:
A method for performing discontinuous transmission in an asynchronous transfer mode is described, wherein a downlink transmission of an ATM cell is performed each time a predetermined number of signal frames indicating a speechless period has been supplied, and wherein an uplink transmission of an ATM cell is only performed when a signal frame indicating a useful information has been supplied. In the downlink transmission, an idle frame can be generated at the receiving end, when no ATM cell is received. In the uplink transmission, a signal frame indicating a useless information can be generated, when no ATM cell is received. Thereby, only those signal frames required at the receiving end are transmitted. Moreover, known transmission functions and elements of a synchronous transmission system can be used at the respective ends of transmission.
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Nguyen Brian
Nokia Networks Oy
Squire Sanders & Dempsey LLP
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