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1.发明授权
公开(公告)号：EP1724959B1
公开(公告)日：2013-04-10
申请号：EP05011043.6
申请日：2005-05-21
CPC分类号： H04L5/026 , H04L1/1816 , H04L1/1835
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2.发明公开Multiple access communication system with ARQ and interference cancellation 有权Mehrfachzugriffsübertragungssystemmit ARQ undInterferenzauslöschung
公开(公告)号：EP1724959A1
公开(公告)日：2006-11-22
申请号：EP05011043.6
申请日：2005-05-21
CPC分类号： H04L5/026 , H04L1/1816 , H04L1/1835
摘要： The multiple access communication system, especially OFDMA-CDM system, transmitting digital data symbols in packet form uses automatic repeat request (ARQ) means combined with soft parallel or serial interference cancellation (IC) means to achieve error free multi-user wireless transmission of packets. Superimposed packet allocation for packet transmission is provided where each transmitted packet is associated with one spreading code. An iterative algorithm is applied which is a combination of IC and hybrid ARQ based on soft value combining (SVC), said algorithm exploiting reliability information of erroneously received copies of the same data packet to improve the performance of interference cancellation. Ideal reconstruction of the interference of correctly received packets is performed and reconstructed interference is subtracted from received signal vector. The invention may be used for multi-carrier wireless or wired transmission systems with any type of interference.
摘要翻译： 以数据包形式发送数字数据符号的多址通信系统，特别是OFDMA-CDM系统采用自动重传请求（ARQ）手段，结合软并行或串行干扰消除（IC）手段，实现无错误的多用户无线传输 。 提供了用于分组传输的叠加分组分配，其中每个发送的分组与一个扩展码相关联。 应用迭代算法，它是基于软值组合（SVC）的IC和混合ARQ的组合，所述算法利用相同数据分组的错误接收的副本的可靠性信息来提高干扰消除的性能。 执行对正确接收到的分组的干扰的理想重构，并从接收信号向量中减去重构的干扰。 本发明可以用于具有任何类型干扰的多载波无线或有线传输系统。
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