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公开(公告)号:WO2004004194A2
公开(公告)日:2004-01-08
申请号:PCT/IB0302784
申请日:2003-06-17
Applicant: IBM , JELITTO JENS , NOLL BARRETO ANDRE , TRUONG HONG LINH
Inventor: JELITTO JENS , NOLL BARRETO ANDRE , TRUONG HONG LINH
CPC classification number: H04L1/0002 , H04L1/0007 , H04L1/0026 , Y02D50/10
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 (bl) 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:WO2004004194A8
公开(公告)日:2004-04-08
申请号:PCT/IB0302784
申请日:2003-06-17
Applicant: IBM , JELITTO JENS , NOLL BARRETO ANDRE , TRUONG HONG LINH
Inventor: JELITTO JENS , NOLL BARRETO ANDRE , TRUONG HONG LINH
CPC classification number: H04L1/0002 , H04L1/0007 , H04L1/0026 , Y02D50/10
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 (bl) 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.
Abstract translation: 本发明公开了一种用于使数据通信系统的发送节点中的发送参数适应数据通信信道的当前链路质量的设备和方法。 取决于成功传输的数量,由传输节点从一组传输参数中选择适配的传输参数。 在传输节点中比较成功传输的次数与对应于传输节点的第一状态的第一阈值和对应于传输节点的第二状态的第二阈值中的一个。 该方法在传输节点中包括以下步骤:(a)对成功传输的数量进行计数; (b)响应于当发送节点处于第一状态时成功发送的数量等于或超过第一阈值,选择适配的发送参数(b1),以及(b2)响应于成功发送的数量等于或 当发送节点处于第二状态时超过第二阈值; 并且根据后续传输的结果,以第一状态和第二状态之一操作发送节点。
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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: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:CA2469913A1
公开(公告)日:2003-06-26
申请号:CA2469913
申请日:2002-11-21
Applicant: IBM
Inventor: NOLL BARRETO ANDRE
Abstract: The present invention provides a method and apparatus for multi-carrier transmission of data. The method comprising the steps of: providing a stream of data, encoding the stream of data to create a plurality of complex values , assigning each of the plurality of complex values to one of a plurality of s ub- channels, assigning a separate value to each of the plurality of sub-channel s, multiplying each of the plurality of sub-channels with the assigned separate value to generate a multiplied value for each of the plurality of sub- channels, modulating the multiplied value of each of the plurality of sub- channels to a sub-carrier to generate a modulated signal for each of the sub - channels, and simultaneously transmitting the modulated signals.
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