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METHOD AND SYSTEM OF PRELIMINARY CODING AND METHOD TO BUILD CODE BOOK OF PRELIMINARY CODING
METHOD AND SYSTEM OF PRELIMINARY CODING AND METHOD TO BUILD CODE BOOK OF PRELIMINARY CODING
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机译:初步编码的方法和系统以及构建初步编码的代码簿的方法
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FIELD: radio engineering, communication.;SUBSTANCE: method of preliminary coding, and also a system and a method of building a code book of preliminary coding include the following: joint storage of information of the code book of preliminary coding by a transmitting end and a receiving end, selection of a code word from a code book of preliminary coding by the receiving end according to the assessed channel matrix and return of a serial number of the code word along a feedback channel to the transmitting end, definition of the code word by the transmitting end according to the serial number and preliminary coding with application of this code word, a unit of symbols sent to the receiving end; besides, at least eight vectors of code words or vectors of columns, at least in eight matrices of code words in the code book of preliminary coding are produced on the basis of 8-dimensional vectors selected from a set of 8-dimensional vectors, and this set of 8-dimensional vectors is produced by calculation from a part of or from all 4-dimensional vectors u1 u2, u3; u4, u5, u6, u7, u8, s, m, n.;EFFECT: improvement of working parameters of preliminary coding, when a channel matrix has a low range in a MIMO system, provision of memory space saving since only 4-dimensional vectors may be stored for calculation of code words.;13 cl, 7 dwg
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机译:技术领域:无线电工程,通信。实体:初步编码的方法,以及构建初步编码的代码簿的系统和方法包括以下内容:由发送端和终端共同存储初步编码的代码簿的信息。接收端,接收端根据评估出的信道矩阵,从初步编码的码本中选择一个码字,并沿着反馈信道将码字的序列号返回至发送端,对该码字进行定义由发送端根据序列号并应用该代码字进行初步编码,将一个符号单元发送给接收端;此外,基于从一组8维向量中选出的8维向量,至少产生初步编码码本中至少八个矩阵中的代码字向量或列向量。这组8维向量是根据部分或全部4维向量u 1 Sub> u 2 Sub>,u 3; Sub>的计算而产生的> u 4 Sub>,u 5 Sub>,u 6 Sub>,u 7 Sub>,u 8, Sub > s,m,n;效果:改进了初步编码的工作参数,当MIMO系统中的信道矩阵范围较小时,由于仅可存储4维向量来计算码字,因此节省了存储空间。; 13 cl,7 dwg
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