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公开(公告)号：EP2243302A1
公开(公告)日：2010-10-27
申请号：EP09702846.8
申请日：2009-01-13
CPC分类号： H04Q3/0091 , H04L47/10 , H04L47/11 , H04L47/14 , H04L47/263 , H04L47/30 , H04L47/33 , H04L47/35
摘要： A method of performing congestion notification for a data transmission (10) from a sender (14) to a receiver (11) is described. Furthermore, nodes for such a transmission as well as methods of controlling such nodes are described. The data transmission involves a first node (12) and a second node (13) between said sender and receiver. The data packets pass from said second node to said first node towards said receiver. The method comprises: —sending (S82) a message (15) from said first node to said second node, said message relating to a decision on whether to notify said receiver of a congestion condition in said data transmission, —sending (S83) an explicit congestion notification (16) from said second node to said receiver if it is decided to notify said receiver of said congestion condition.
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32.发明公开
公开(公告)号：EP1230764A1
公开(公告)日：2002-08-14
申请号：EP00979524.6
申请日：2000-10-31
发明人： BAUCKE, Stephan , LUDWIG, Reiner , MEYER, Michael
IPC分类号： H04L12/56
CPC分类号： H04L29/06 , H04L1/1809 , H04L1/1874 , H04L47/10 , H04L47/32 , H04L69/16 , H04L69/163 , H04L69/32 , H04L69/326
摘要： The invention relates to a method and a device for increasing a data throughput in a data transmission via a communication network. In this respect the data packets are examined for redundant data packets on the link layer (5). In case of a temporary transmission failure, the transmission of unacknowledged data packets is repeated on the transport layer (1). Said data packets are provided to the link layer (2). It is the task of the link layer to examine whether the released data packet is a redundant data packet of a data packet already present on the link layer (5). If the redundancy of the data packets is found, the redundant data packet is discarded (7). The data packet is stored on the link layer, if either no data packets are already present on the link layer (4) or if the data packets are not redundant (8).
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公开(公告)号：EP1142226A1
公开(公告)日：2001-10-10
申请号：EP99965583.0
申请日：1999-12-31
发明人： MEYER, Michael , LUDWIG, Reiner
CPC分类号： H04Q11/0478 , H04L1/0001 , H04L1/0002 , H04L1/1628 , H04L1/1635 , H04L1/1803 , H04L1/1809 , H04L1/1835 , H04L1/1858 , H04L1/187 , H04L1/188 , H04L29/06 , H04L69/16 , H04L69/161 , H04L69/163 , H04L69/324 , H04L69/326 , H04L2012/5647 , H04L2012/5649
摘要： A device and a method are proposed in which the sender divides an amount of data to be sent into one or more data units and the receiver acknowledges the correct receipt of data units by returning acknowledgment data units to said sender. The data units are sent by said sender in accordance with a flow control procedure that involves one or more adaptive parameters. After a given data unit is sent, the sender performs a data loss detection routine, and if a triggering event occurs, a corresponding response procedure is conducted, where this response procedure comprises at least two different modes for adapting said one or more adaptive parameters. Preferably, there is a first and a second mode, where the first mode is associated with the actual loss of a data unit, so that this first mode comprises the conventional data loss procedures, and where the second mode is associated with the recognition that an excessive delay has taken place and not a loss of a unit.
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公开(公告)号：EP1046266A1
公开(公告)日：2000-10-25
申请号：EP99904762.4
申请日：1999-01-11
发明人： LUDWIG, Reiner , GERDES, Martin
CPC分类号： H04L12/2854 , H04L63/083
摘要： The invention relates to method and device for improving the link configuration speed of high-latency links, such as circuit switched links or satellite links, that use chatty protocols, which require sequential configuration phases, such as standard PPP in accordance with RfC 1661. In the initial link configuration phase, a standard LCP packet is sent out, followed by at least one masked packet that will be discarded silently by a peer operating in accordance with the standard protocol, but whose contents will be processed by a peer operating in accordance with the invention. The initial standard LCP packet produces compatibility with the standard protocol, whereas the sending of masked packets containing configuration information (PAP, CHAP, ICPC, etc.) allows two peers operating in accordance with the invention to accomplish the configuration phases in parallel, such that a link can be configured and ready to transmit network level packets, such as IP packets, much more quickly than with the standard protocol, such as PPP.
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