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1. 发明申请

US20030105997A1 Performance evaluation of multicarrier channels 失效
标题翻译：多载波信道的性能评估
公开(公告)号：US20030105997A1
公开(公告)日：2003-06-05
申请号：US09741636
申请日：2000-12-20
申请人： 3Com Corporation
发明人： Vlad Mitlin , Richard G.C. Williams
IPC分类号： H03M013/01 , G06F011/30
CPC分类号： H04L1/1825 , H04L1/0009 , H04L27/2608
摘要： A method and apparatus determines an uncoded bit error rate pb based on a target symbol error rate nulls. The uncoded bit error rate pb is determined based on a weighted series expansion of the target symbol error rate nulls, comprising weights W that are a function of a maximum number of symbol errors that can be corrected t and a number of symbols in an information field K. The maximum number of symbol errors t and the number of symbols in the information field K is selected such that the uncoded bit error rate pb that produces a symbol error rate that is less than or equal to the target symbol error rate nulls is largest.
摘要翻译：一种方法和装置基于目标符号错误率εi确定未编码比特错误率pb。基于目标符号错误率ε的加权序列扩展来确定未编码比特错误率pb，包括作为可被校正的符号错误的最大数目的函数的权重W以及信息字段中的符号数目选择符号错误的最大数量t和信息字段K中的符号数，使得产生小于或等于目标符号错误率ε的符号错误率的未编码比特错误率pb最大。

2. 发明申请

US20020108081A1 Performance evaluation of multicarrier channels with forward error correction and automatic retransmission request 失效
标题翻译：具有前向纠错和自动重发请求的多载波信道的性能评估
公开(公告)号：US20020108081A1
公开(公告)日：2002-08-08
申请号：US09741639
申请日：2000-12-20
申请人： 3Com Corporation
发明人： Vlad Mitlin , Richard G.C. Williams
IPC分类号： H04Q001/20 , H04B003/46 , H04B017/00 , H04L001/00 , G06F011/00 , G06F011/30 , H03M013/00 , G08C025/00
CPC分类号： H04L1/0009 , H04L1/1825 , H04L5/0044 , H04L27/2608
摘要： In one embodiment, a method and apparatus increases a bit load of a multicarrier system comprising a channel having a plurality of subchannels. A bit load is determined for at least one subchannel based on a target symbol error rate nullS, a maximum number of symbol errors that can be corrected t, a number of symbols in an information field K, and a maximum number of transmissions k, and a number of bits per subchannel. The maximum number of symbol errors t, the number of symbols in the information field K and the maximum number of transmissions k, is selected such that a net coding gain is increased. In another embodiment, a method determines data flow for a channel having a plurality of subchannels in a multi-carrier system. Data flow for the channel is determined in terms of an input intensity nullin, and a probability of having a frame having no or a correctable number of errors p. The channel performance is adjusted in accordance with the data flow.
摘要翻译：在一个实施例中，方法和装置增加了包括具有多个子信道的信道的多载波系统的位负载。基于目标符号错误率epsiS，可以被校正的符号错误的最大数量t，信息字段K中的符号数量和最大传输数k来确定至少一个子信道的位负载，以及每个子通道的位数。选择符号错误的最大数量t，信息字段K中的符号数量和最大传输数量k，使得增加净编码增益。在另一个实施例中，一种方法确定在多载波系统中具有多个子信道的信道的数据流。根据输入强度lambdin确定信道的数据流，以及具有不具有或可校正错误数p的帧的概率。信道性能根据数据流量进行调整。

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