EP 0993722 A2 20000419 - METHOD FOR PROCESSING ATM CELLS IN BIDIRECTIONAL DATA FLOWS
Title (en)
METHOD FOR PROCESSING ATM CELLS IN BIDIRECTIONAL DATA FLOWS
Title (de)
VERFAHREN ZUR VERARBEITUNG VON ATM-ZELLEN IN BIDIREKTIONALEN DATENSTRÖMEN
Title (fr)
PROCEDE POUR LE TRAITEMENT DE CELLULES MTA DANS DES FLUX DE DONNEES BIDIRECTIONNELS
Publication
Application
Priority
- DE 9801835 W 19980702
- DE 19728690 A 19970704
Abstract (en)
[origin: WO9901954A2] The invention relates to a method for processing ATM cells in upstream and downstream bidirectional data flows in an ATM component in which the processing speed is greater than the mean cell rate and empty cycles without ATM cells are present in the cell flow. To allow for two-way alternate processing of upward and downward cells, the processing logic (VAL) of the component (BST) issues requests (EC up req, EC down req) for empty cycles upstream and downstream to an empty- cycle control unit (LZS) so as to obtain processing time. The cells of the downstream data flow can be stored and released separately in a buffer (BUF) so that in this way empty cycles can be generated downstream. Should an empty cycle occur, an upstream request for empty cycles (EC up req) is processed as a priority in relation to a simultaneous downstream request. In case of a downstream empty cycle request (EC down req) an empty cycle is released with a delay of one cycle period if there is a simultaneous upstream request. If this is not the case, it is released immediately.
IPC 1-7
IPC 8 full level
H04L 12/54 (2013.01); H04L 12/56 (2006.01); H04L 12/935 (2013.01); H04Q 11/04 (2006.01); H04L 12/70 (2013.01)
CPC (source: EP US)
H04L 12/5601 (2013.01 - EP US); H04L 49/3081 (2013.01 - EP US); H04Q 11/0478 (2013.01 - EP US); H04L 2012/5625 (2013.01 - EP US)
Citation (search report)
See references of WO 9901954A2
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
WO 9901954 A2 19990114; WO 9901954 A3 19990401; CA 2295221 A1 19990114; DE 19728690 A1 19990225; DE 19728690 C2 19990902; EP 0993722 A2 20000419; US 6667979 B1 20031223
DOCDB simple family (application)
DE 9801835 W 19980702; CA 2295221 A 19980702; DE 19728690 A 19970704; EP 98942490 A 19980702; US 46221500 A 20000104