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1. 发明公开

EP1143653A2 Multilevel coding with unequal error protection and time diversity for bandwidth efficient transmission 有权
标题翻译：不等错误保护和时间分集的高带宽的传输多层编码
公开(公告)号：EP1143653A2
公开(公告)日：2001-10-10
申请号：EP01302770.1
申请日：2001-03-26
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chung, Sae-Young , Lou, Hui-Ling
IPC分类号： H04L1/00 , H04L27/34
CPC分类号： H04L1/0058 , H04L1/0041 , H04L1/0065 , H04L1/007
摘要： Improved techniques for multilevel coding of a stream of information bits in a communication system are disclosed. The stream of information bits is separated into portions, and each of the portions is associated with a different level of the multilevel coding. At least one code is applied to the portion of the information bits of each level in a designated subset of the full set of levels, such that the portions of the information bits for levels in the designated subset are coded while the portions of the information bits for levels not in the designated subset are uncoded. Both the coded portions of the information bits and the uncoded portions of the information bits are used to select modulation symbols for transmission in the system. Advantageously, the invention provides improved coding gain relative to conventional techniques, and can be configured to provide unequal error protection as well as time diversity for transmissions in the system.
摘要翻译：改进了对在通信系统中的信息位流的多级编码技术是游离缺失盘。信息比特的流被分离成多个部分，并且每个部分都与不同的电平的多级编码相关联。至少一个代码被施加到在全套电平中的一个指定的子集中的每个级的信息位的部分，检查没有信息比特的用于指定子集电平的部分进行编码，而信息比特的部在指定的子集不是水平未编码。两个信息比特和信息比特的未编码部分的编码部分进行用于选择系统中的传输的调制符号。有利的是，本发明提供了改进的编码相对于常规技术的增益，并且可以被配置为提供不等差错保护以及在系统中的传输时间分集。

2. 发明公开

EP1161020A3 Method and apparatus for generating channel error flags for error mitigation and/or concealment in source decoders 有权
标题翻译：用于误差衰减和/或在源编码器-Verdeckung产生错误标志的方法和装置
公开(公告)号：EP1161020A3
公开(公告)日：2006-09-06
申请号：EP01302760.2
申请日：2001-03-26
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chung, Sae-Young , Lou, Hui-Ling
IPC分类号： H04L1/00
CPC分类号： H04L1/0082 , H04L1/0054
摘要： Error flags are generated for use in source decoding of a source-coded bit stream transmitted through a channel of a communication system. The source-coded bit stream is channel coded using at least one channel code, and the channel code is decoded in a soft-decision channel decoder to generate a received version of the source-coded bit stream and one or more reliability measures associated with a designated portion of the received version of the source-coded bit stream. The reliability measures are processed to generate one or more error flags indicative of the presence of an error in the corresponding portion of the received version of the source-coded bit stream. The invention allows different detection capabilities to be used for different portions of the received version of the source-coded bit stream, and further allows these detection capabilities to be changed dynamically at the receiver. The error flags may be used to trigger an error mitigation/concealment algorithm in the source decoder. Advantageously, the error flags can be matched to frames or subframes of the source-coded bit stream, such that the performance of the error mitigation/concealment algorithm is substantially improved relative to its performance when using error flags generated from a conventional outer block code.

3. 发明公开

EP1161020A2 Method and apparatus for generating channel error flags for error mitigation and/or concealment in source decoders 有权
标题翻译：用于误差衰减和/或在源编码器-Verdeckung产生错误标志的方法和装置
公开(公告)号：EP1161020A2
公开(公告)日：2001-12-05
申请号：EP01302760.2
申请日：2001-03-26
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chung, Sae-Young , Lou, Hui-Ling
IPC分类号： H04L1/00
CPC分类号： H04L1/0082 , H04L1/0054
摘要： Error flags are generated for use in source decoding of a source-coded bit stream transmitted through a channel of a communication system. The source-coded bit stream is channel coded using at least one channel code, and the channel code is decoded in a soft-decision channel decoder to generate a received version of the source-coded bit stream and one or more reliability measures associated with a designated portion of the received version of the source-coded bit stream. The reliability measures are processed to generate one or more error flags indicative of the presence of an error in the corresponding portion of the received version of the source-coded bit stream. The invention allows different detection capabilities to be used for different portions of the received version of the source-coded bit stream, and further allows these detection capabilities to be changed dynamically at the receiver. The error flags may be used to trigger an error mitigation/concealment algorithm in the source decoder. Advantageously, the error flags can be matched to frames or subframes of the source-coded bit stream, such that the performance of the error mitigation/concealment algorithm is substantially improved relative to its performance when using error flags generated from a conventional outer block code.
摘要翻译：错误标志被用于在源编码后的比特流通过一个通信系统的信道的反式mitted的源解码使用生成的。使用至少一个信道码的源编码的比特流被信道编码，信道编码是在软解码 -decision信道解码器，以生成所述源编码的比特流，并与源编码比特流的接收的版本的指定部分相关联的一个或多个可靠性措施的接收版本。可靠性措施进行处理以生成一个或多个指示的误差的中的源编码的比特流的接收的版本对应的部分中存在的错误标志。本发明允许用于源编码的比特流的接收的版本不同部分的不同的检测能力，并且进一步允许论文检测功能来动态地在接收机处被改变。错误标志可以被用于触发在源解码器错误缓解/隐藏算法。有利的是，错误标志可以匹配帧或源编码后的比特流的子帧中，检测所做的错误缓解/隐藏算法的性能基本上使用从常规的外部块码产生的错误标志当相对于它的性能提高。

4. 发明授权

EP1143653B1 Multilevel coding with unequal error protection and time diversity for bandwidth efficient transmission 有权
标题翻译：不等错误保护和时间分集的高带宽的传输多层编码
公开(公告)号：EP1143653B1
公开(公告)日：2010-07-28
申请号：EP01302770.1
申请日：2001-03-26
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chung, Sae-Young , Lou, Hui-Ling
IPC分类号： H04L1/00 , H04L27/34
CPC分类号： H04L1/0058 , H04L1/0041 , H04L1/0065 , H04L1/007

5. 发明公开

EP1143653A3 Multilevel coding with unequal error protection and time diversity for bandwidth efficient transmission 有权
标题翻译：不等错误保护和时间分集的高带宽的传输多层编码
公开(公告)号：EP1143653A3
公开(公告)日：2006-09-06
申请号：EP01302770.1
申请日：2001-03-26
申请人： LUCENT TECHNOLOGIES INC.
发明人： Chung, Sae-Young , Lou, Hui-Ling
IPC分类号： H04L1/00 , H04L27/34
CPC分类号： H04L1/0058 , H04L1/0041 , H04L1/0065 , H04L1/007
摘要： Improved techniques for multilevel coding of a stream of information bits in a communication system are disclosed. The stream of information bits is separated into portions, and each of the portions is associated with a different level of the multilevel coding. At least one code is applied to the portion of the information bits of each level in a designated subset of the full set of levels, such that the portions of the information bits for levels in the designated subset are coded while the portions of the information bits for levels not in the designated subset are uncoded. Both the coded portions of the information bits and the uncoded portions of the information bits are used to select modulation symbols for transmission in the system. Advantageously, the invention provides improved coding gain relative to conventional techniques, and can be configured to provide unequal error protection as well as time diversity for transmissions in the system.

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