US 6,982,981 B1 | ||
Method for configuring a network termination unit | ||
Johann Pfeiffer, Vienna (Austria) | ||
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (Sweden) | ||
Appl. No. 9/857,029 PCT Filed Dec. 01, 1999, PCT No. PCT/AT99/00293 § 371(c)(1), (2), (4) Date May 31, 2001, PCT Pub. No. WO00/33602, PCT Pub. Date Jun. 08, 2000. |
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Claims priority of application No. 2028/98 (AT), filed on Dec. 01, 1999. | ||
Int. Cl. H04J 3/24 (2006.01) |
U.S. Cl. 370—395.43 | 6 Claims |
1. A method for configuring a network termination unit for asynchronous packet ATM (Asynchronous Transfer Mode) transmission
of data, said method comprising the steps of:
dividing the data into data cells;
assembling the data cells into packets;
transmitting the packets either at a constant data rate CBR or at a non-constant data rate UBR, wherein the data cells of
packets are received and sent over the network termination unit which represents an interface between a transmission line
and a data end device;
determining the number of the data cells in each sent or received data packet in the network termination unit, and it is determined
therefrom whether an ATM connection with constant CBR or non-constant UBR data rate is present, the data packets of a CBR
connection being processed with a higher priority then the data packets of the UBR connection;
determining a class of data connection, wherein adaptation layers with different packet lengths are defined for the transmission
of the data packets, wherein, on determination of a data packet which contains more than a predefined number of cells, said
predefined number being at least two, a UBR packet is detected, and in all other cases a CBR data packet is detected, and
the ATM connection is correspondingly classified as a UBR or a CBR connection.
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