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1. 发明申请

WO2006018669A1 METHODS AND APPARATUS FOR BALANCING MODULATION IN CELLULAR COMMUNICATIONS OVER NOISY CHANNELS 审中-公开
标题翻译：噪声通道中细胞通信平衡调制的方法与装置
公开(公告)号：WO2006018669A1
公开(公告)日：2006-02-23
申请号：PCT/IB2004/002674
申请日：2004-08-17
申请人： NOKIA CORPORATION , XU, Zhaoji , ZHAO, Zhu, Yan
发明人： XU, Zhaoji , ZHAO, Zhu, Yan
IPC分类号： H04L1/18
CPC分类号： H04L1/1819 , H04L1/0003 , H04L1/0006 , H04L1/0013 , H04L1/0068 , H04L1/0071 , H04L1/1893 , H04L5/143 , H04L27/183 , H04L27/2075
摘要： Methods and apparatus for balancing multi-symbol modulation schemes in cellular communications are provided. The modulation schemes include a plurality of modulation symbols, each of which codes a predefined bit group, which includes one or more bits. The bit groups define different bit positions for bits within the bit groups. The bit positions of the modulation symbols are associated with different error probability levels. Each error probability level defines a probability level of an erroneous bit value at a defined bit position in the bit group, which is obtained by a mapping operation from the modulation symbol transmitted over a radio frequency channel with noise. Binary content to be modulated is provided in form of code blocks I (where i = 1 to n). Each of the code blocks is carried on a corresponding code channel i. The code blocks on the code channels are supplied to the modulation schemes in that each code channel is associated with one predefined bit position of the bit groups to enable a mapping to modulation symbols. The bit groups are formed from the binary content of the code blocks in accordance with the code channel-to-bit position association defined above. The binary content of at least two code blocks is shuffled, distributed, or scattered in accordance with predetermined shuffling, distributing, or scattering rules. The shuffling, distributing, or scattering aims to achieve substantially balanced or same error probability levels for said code channels. The shuffling operation should be performed to achieve a substantially evenly distribution of the binary content upon the involved code blocks.
摘要翻译：提供了用于平衡蜂窝通信中的多符号调制方案的方法和装置。调制方案包括多个调制符号，每个调制符号都编码包括一个或多个比特的预定位组。位组为位组中的位定义不同的位位置。调制符号的位位置与不同的误差概率水平相关联。每个错误概率级别定义在通过具有噪声的射频信道发送的调制符号的映射操作获得的比特组中定义的比特位置处的错误比特值的概率级。以代码块I（其中i = 1至n）的形式提供要调制的二进制内容。每个代码块在对应的代码通道i上承载。代码信道上的代码块被提供给调制方案，因为每个代码通道与位组的一个预定义位位置相关联，以使能映射到调制符号。根据上面定义的代码信道到位位置关联，这些位组由代码块的二进制内容形成。至少两个代码块的二进制内容根据预定的混洗，分布或散布规则进行混洗，分散或分散。混洗，分配或散射旨在实现所述代码信道的基本平衡或相同的错误概率级别。应执行混洗操作以实现二进制内容在所涉及的代码块上的基本均匀分布。

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