公开(公告)号：US20070127608A1

公开(公告)日：2007-06-07

申请号：US11465443

申请日：2006-08-17

申请人： Jacob Scheim ,  Assaf Ben-Yishai ,  Amir Ingber ,  Evgeny Yakhnich

发明人： Jacob Scheim ,  Assaf Ben-Yishai ,  Amir Ingber ,  Evgeny Yakhnich

IPC分类号： H03D1/04

CPC分类号： H04B7/0413 ,  H04L2025/03407

摘要： A novel and useful apparatus for and method of Gaussian Minimum Shift Keying (GMSK) single antenna interference cancellation (SAIC) for use in a digital receiver. The invention comprises an interference mitigation module that treats the problem of GMSK SAIC in a blind manner. The interference mitigation mechanism is operative to compensate for the co-channel interference added in the communications channel which is subject to multipath propagation and fading, receiver filter and any pre-channel estimation filtering. The interference mitigation module takes advantage of the spatial diversity making up multiple branches of the received signal. The branches comprise the in-phase and quadrature elements of the received signal, the sampling phases if over sampling is applied (i.e. T/m sampling) and/or multiple antennas. The invention utilizes the spatial diversity of these multiple representations of the received signal and combines (i.e. collapses) the information in the plurality of branches into a single branch that is input to the equalizer.

摘要翻译： 一种用于数字接收机的高斯最小偏移键控（GMSK）单天线干扰消除（SAIC）的新颖有用的装置和方法。 本发明包括一种以盲目方式处理GMSK SAIC问题的干扰减轻模块。 干扰减轻机制可用于补偿在经历多径传播和衰落，接收机滤波器和任何前置信道估计滤波的通信信道中增加的同信道干扰。 干扰减轻模块利用组成接收信号的多个分支的空间分集。 分支包括接收信号的同相和正交元件，如果采用过采样（即T / m采样）和/或多个天线的采样相位。 本发明利用了接收信号的这些多重表示的空间分集，并将多个分支中的信息合并（即折叠）为输入到均衡器的单个分支。

公开(公告)号：US20080279298A1

公开(公告)日：2008-11-13

申请号：US11746781

申请日：2007-05-10

申请人： Assaf Ben-Yishai ,  Ilan Reuven

发明人： Assaf Ben-Yishai ,  Ilan Reuven

IPC分类号： H04L5/12

CPC分类号： H04L25/03318 ,  H04L25/03242 ,  H04L2025/03414 ,  H04L2025/03605

摘要： A novel and useful apparatus for and method of multiple input multiple output (MIMO) detection for use in MIMO based communication systems. The mechanism of the invention performs a simplified tree search utilizing a single stage expansion of the most likely first symbol candidates, in the case of a 2×2 MIMO system. The invention also provides a refinement mechanism that is operative to significantly improve the log likelihood (LLR) of the list of candidates. To improve the LLR, the mechanism applies refinements rounds to generate additional candidates for both first and second detected symbols.

摘要翻译： 一种用于MIMO输入多输出（MIMO）检测的新颖有用的装置和方法，用于基于MIMO的通信系统。 在2x2 MIMO系统的情况下，本发明的机制使用最可能的第一符号候选者的单级扩展来执行简化树搜索。 本发明还提供了一种改进机制，其可操作以显着改善候选者名单的对数似然性（LLR）。 为了改善LLR，该机制应用改进轮次以产生第一和第二检测符号的附加候选。

公开(公告)号：US07720169B2

公开(公告)日：2010-05-18

申请号：US11746806

申请日：2007-05-10

申请人： Ilan Reuven ,  Assaf Ben-Yishai

发明人： Ilan Reuven ,  Assaf Ben-Yishai

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04L25/03318

摘要： A novel and useful apparatus for and method of multiple input multiple output (MIMO) detection for use in MIMO based communication systems. The mechanism of the invention performs a simplified tree search utilizing a single stage expansion of the most likely first symbol candidates, in the case of a 2×2 MIMO system. The invention also provides a refinement mechanism operative to significantly improve the soft information (i.e. log likelihood ratio) of the list of candidates. To improve the soft information, the mechanism applies one or more refinement rounds to generate additional candidates for both first and second detected symbols.

摘要翻译： 一种用于MIMO输入多输出（MIMO）检测的新颖有用的装置和方法，用于基于MIMO的通信系统。 在2×2 MIMO系统的情况下，本发明的机制使用最可能的第一符号候选的单级扩展来执行简化树搜索。 本发明还提供了一种可以显着改善候选列表的软信息（即对数似然比）的改进机制。 为了改进软信息，该机制应用一个或多个细化轮来为第一和第二检测符号生成另外的候选。

公开(公告)号：US20080279299A1

公开(公告)日：2008-11-13

申请号：US11746806

申请日：2007-05-10

申请人： Ilan Reuven ,  Assaf Ben-Yishai

发明人： Ilan Reuven ,  Assaf Ben-Yishai

IPC分类号： H04L1/02

CPC分类号： H04L25/03318

摘要： A novel and useful apparatus for and method of multiple input multiple output (MIMO) detection for use in MIMO based communication systems. The mechanism of the invention performs a simplified tree search utilizing a single stage expansion of the most likely first symbol candidates, in the case of a 2×2 MIMO system. The invention also provides a refinement mechanism that is operative to significantly improve the soft information (i.e. log likelihood ratio) of the list of candidates. To improve the soft information, the mechanism applies one or more refinements rounds to generate additional candidates for both first and second detected symbols.

摘要翻译： 一种用于MIMO输入多输出（MIMO）检测的新颖有用的装置和方法，用于基于MIMO的通信系统。 在2x2 MIMO系统的情况下，本发明的机制使用最可能的第一符号候选者的单级扩展来执行简化树搜索。 本发明还提供了一种改进机制，其可操作以显着改善候选列表的软信息（即对数似然比）。 为了改进软信息，该机制应用一个或多个细化轮来为第一和第二检测符号生成另外的候选。