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公开(公告)号：DE60302160T2
公开(公告)日：2006-07-13
申请号：DE60302160
申请日：2003-06-17
Applicant: IBM
Inventor： JELITTO JENS , NOLL BARRETO ANDRE , TRUONG LINH
Abstract: The present invention discloses an apparatus and method for adapting a transmission parameter in a transmitting node of a data communication system to the current link quality of a data communication channel. The adapted transmission parameter is selected by the transmitting node from a set of transmission parameters in dependence on a number of successful transmissions. The number of successful transmissions is compared in the transmitting node against one of a first threshold value corresponding to a first state of the transmitting node and a second threshold value corresponding to a second state of the transmitting node. The method comprises in the transmitting node the steps of (a) counting the number of successful transmissions; (b) selecting the adapted transmission parameter (b1) in response to the number of successful transmissions equaling or exceeding the first threshold value when the transmitting node is in the first state, and (b2) in response to the number of successful transmissions equaling or exceeding the second threshold value when the transmitting node is in the second state; and in dependence of the result of a following transmission, operating the transmitting node in one of the first state and the second state.
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公开(公告)号：DE69615225D1
公开(公告)日：2001-10-18
申请号：DE69615225
申请日：1996-02-21
Applicant: IBM
Inventor： TRUONG LINH , WONG WAI-NANG
IPC: H04M3/42 , H04L12/28 , H04L12/54 , H04L12/70 , H04L29/06 , H04L29/08 , H04M3/00 , H04M3/38 , H04M3/428 , H04M3/46 , H04M3/48 , H04M3/54 , H04M7/00 , H04M11/00 , H04Q3/00 , H04Q11/04
Abstract: The invented method and system for enabling and controlling telephony over existing networks, e.g. ATM networks, the Internet or other data networks, uses essentially distributed control processing employing intelligence in the typical end-user devices, e.g. workstations or personal computers. Parallel use of a real-time channel (to provide the needed direct voice communication) and a control channel (for basic services like connection buildup and termination and for supplementary services) essentially established by and from the users's workstations (and in principle excluding the PBXs) allows implementation of practically any imaginable function.
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公开(公告)号：DE60302160D1
公开(公告)日：2005-12-08
申请号：DE60302160
申请日：2003-06-17
Applicant: IBM
Inventor： JELITTO JENS , NOLL BARRETO ANDRE , TRUONG LINH
Abstract: The present invention discloses an apparatus and method for adapting a transmission parameter in a transmitting node of a data communication system to the current link quality of a data communication channel. The adapted transmission parameter is selected by the transmitting node from a set of transmission parameters in dependence on a number of successful transmissions. The number of successful transmissions is compared in the transmitting node against one of a first threshold value corresponding to a first state of the transmitting node and a second threshold value corresponding to a second state of the transmitting node. The method comprises in the transmitting node the steps of (a) counting the number of successful transmissions; (b) selecting the adapted transmission parameter (b1) in response to the number of successful transmissions equaling or exceeding the first threshold value when the transmitting node is in the first state, and (b2) in response to the number of successful transmissions equaling or exceeding the second threshold value when the transmitting node is in the second state; and in dependence of the result of a following transmission, operating the transmitting node in one of the first state and the second state.
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公开(公告)号：DE69615225T2
公开(公告)日：2002-06-27
申请号：DE69615225
申请日：1996-02-21
Applicant: IBM
Inventor： TRUONG LINH , WONG WAI-NANG
IPC: H04M3/42 , H04L12/28 , H04L12/54 , H04L12/70 , H04L29/06 , H04L29/08 , H04M3/00 , H04M3/38 , H04M3/428 , H04M3/46 , H04M3/48 , H04M3/54 , H04M7/00 , H04M11/00 , H04Q3/00 , H04Q11/04
Abstract: The invented method and system for enabling and controlling telephony over existing networks, e.g. ATM networks, the Internet or other data networks, uses essentially distributed control processing employing intelligence in the typical end-user devices, e.g. workstations or personal computers. Parallel use of a real-time channel (to provide the needed direct voice communication) and a control channel (for basic services like connection buildup and termination and for supplementary services) essentially established by and from the users's workstations (and in principle excluding the PBXs) allows implementation of practically any imaginable function.
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