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1. 发明公开

EP2540023A2 METHODS AND APPARATUS FOR ITERATIVE DECODING IN MULTIPLE-INPUT-MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEMS 审中-公开
标题翻译：方法和设备重复解码MIMO通信系统
公开(公告)号：EP2540023A2
公开(公告)日：2013-01-02
申请号：EP11711703.6
申请日：2011-02-24
申请人： Qualcomm Incorporated
发明人： CUI, Tao , TANG, Jia , SENDONARIS, Andrew , SALVEKAR, Atul, A. , RAO, Subramanya P.N. , SUBRAHMANYA, Parvathanathan , XIAO, Lei , MCCLOUD, Michael, L. , BANISTER, Brian, C.
IPC分类号： H04L1/06
CPC分类号： H04L1/005 , H04L1/06 , H04L25/03242 , H04L25/067
摘要： Methods and apparatus for receiving, processing, and decoding MIMO transmissions in communications systems are described. A non-Gaussian approximation method for simplifying processing complexity where summations are used is described. Use of a priori information to facilitate determination of log likelihood ratios (LLRs) in receivers using iterative decoders is further described. A Gaussian or non-Gaussian approximation method using a priori information may be used to determine a K-best list of values for summation to generate an LLR is also described.

2. 发明公开

EP2286563A2 INTERFERENCE REDUCTION BETWEEN OFDM CARRIERS BY CARRIER SPACING OPTIMIZATION 有权
标题翻译：干扰降低BETWEEN OFDM载波通过载波间隔优化
公开(公告)号：EP2286563A2
公开(公告)日：2011-02-23
申请号：EP09763467.9
申请日：2009-06-09
申请人： QUALCOMM Incorporated
发明人： BREHLER, Matthias , BANISTER, Brian, C. , GAAL, Peter
IPC分类号： H04L27/26 , H04L5/00
CPC分类号： H04L5/0007 , H04L5/0037 , H04L27/2657
摘要： Systems and methodologies are described that facilitate signal separation across different carriers within a wireless communications environment. The systems and methods can identify a carrier spacing that can be based upon a tone spacing associated with two or more carriers. Such carrier spacing can be employed within a network in order to mitigate signal separation with multiple carriers. The subject innovation can further evaluate a carrier raster associated with a network in order to identify a carrier spacing to ensure orthogonality between tones from different carriers.

3. 发明公开

EP2596606A1 ADAPTIVE QUANTIZATION OF DECISION METRICS IN A WIRELESS RECEIVER 审中-公开
标题翻译： EANEM DRAHTLOSENEMPFÄNGER中的自适应量子化合物
公开(公告)号：EP2596606A1
公开(公告)日：2013-05-29
申请号：EP11743684.0
申请日：2011-07-13
申请人： Qualcomm Incorporated
发明人： WILBORN, Thomas, B. , BANISTER, Brian, C. , YUN, Sungho , BHATTACHARJEE, Supratik , KANG, Inyup
IPC分类号： H04L25/03 , H04L25/06
CPC分类号： H04L25/03184 , H04L25/067
摘要： A method for quantizing decision metrics (e.g., log likelihood ratios (LLRs)) for reduction of memory requirements in wireless communication is described. The method includes selecting a quantization algorithm. The quantization algorithm may be selected as a function of a characteristic of a decision metric representative of a transport block received over a communication channel, a characteristic of the transport block, or a condition of the communication channel. The method further includes quantizing the decision metric using the selected quantization algorithm to generate at least one quantized decision metric representative of the transport block. The method further includes storing the quantized decision metric and an indicia of the selected quantization algorithm to enable recovery of the decision metric representative of the transport block prior to decoding.
摘要翻译：描述了用于量化用于减少无线通信中的存储器要求的决策度量（例如，对数似然比（LLR））的方法。该方法包括选择量化算法。量化算法可以作为代表通过通信信道接收的传输块的决策度量，传输块的特性或通信信道的条件的特性的函数来选择。该方法还包括使用所选择的量化算法对决策度量进行量化，以生成表示传输块的至少一个量化决策度量。该方法还包括存储量化决策度量和所选择的量化算法的标记，以使得能够在解码之前恢复表示传输块的决策度量。

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