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1. 发明申请

WO2011106571A3 METHODS AND APPARATUS FOR ITERATIVE DECODING IN MULTIPLE-INPUT-MULTIPLE-OUTPUT (MIMO) COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于多输入多输出（MIMO）通信系统中的迭代解码的方法和装置
公开(公告)号：WO2011106571A3
公开(公告)日：2011-09-01
申请号：PCT/US2011/026138
申请日：2011-02-24
申请人： QUALCOMM INCORPORATED , CUI, Tao , TANG, Jia , SENDONARIS, Andrew , SALVEKAR, Atul, A. , RAO, Subramanya P.N. , SUBRAHMANYA, Parvathanathan , XIAO, Lei , MCCLOUD, Michael, L. , BANISTER, Brian, C.
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 , H04L25/03 , H04L1/00
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.
摘要翻译：描述了用于在通信系统中接收，处理和解码MIMO传输的方法和设备。描述了用于简化使用求和的处理复杂度的非高斯逼近方法。进一步描述使用先验信息来促进使用迭代解码器来确定接收器中的对数似然比（LLR）。使用先验信息的高斯或非高斯近似方法可以用于确定用于求和以产生LLR的K最佳值列表也被描述。

2. 发明申请

WO2009152177A2 INTERFERENCE REDUCTION BETWEEN OFDM CARRIERS BY FREQUENCY OFFSET OPTIMIZATION 审中-公开
标题翻译：通过频偏优化对OFDM载波之间的干扰减少
公开(公告)号：WO2009152177A2
公开(公告)日：2009-12-17
申请号：PCT/US2009/046785
申请日：2009-06-09
申请人： QUALCOMM INCORPORATED , BREHLER, Matthias , BANISTER, Brian, C. , GAAL, Peter
发明人： BREHLER, Matthias , BANISTER, Brian, C. , GAAL, Peter
IPC分类号： 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.
摘要翻译：描述了在无线通信环境内促进跨越不同载波的信号分离的系统和方法。系统和方法可以识别可以基于与两个或更多个载波相关联的音调间隔的载波间隔。这样的载波间隔可以在网络内使用，以便减轻与多个载波的信号分离。本发明可以进一步评估与网络相关联的载波光栅，以便识别载波间隔，以确保来自不同载波的音调之间的正交性。

3. 发明申请

WO2013009522A1 SELECTION OF WINDOW LENGTH BASED ON MULTIPLE METRICS 审中-公开
标题翻译：基于多项式选择窗口长度
公开(公告)号：WO2013009522A1
公开(公告)日：2013-01-17
申请号：PCT/US2012/045270
申请日：2012-07-02
申请人： QUALCOMM INCORPORATED , PARK, Jong, Hyeon , BANISTER, Brian, C. , JI, Zhu , FONG, Gene , CHALLA, Raghu, Narayan
发明人： PARK, Jong, Hyeon , BANISTER, Brian, C. , JI, Zhu , FONG, Gene , CHALLA, Raghu, Narayan
IPC分类号： H04L25/03 , H04L27/26
CPC分类号： H04L25/03 , H04L25/03006 , H04L27/26 , H04L27/2602 , H04L27/2626
摘要： Techniques for windowing a transmission are disclosed herein. In one aspect of the disclosure, the length of a window used for windowing may be configurable and determined for a transmission based on a configuration of the transmission. The configuration of the transmission may be determined based on one or more parameters such as a system bandwidth, a bandwidth assigned for the transmission, the location of the assigned bandwidth within the system bandwidth, a modulation type used for the transmission, etc. In another aspect of the disclosure, a preferred length for a window may be determined for each of a number of possible configurations of a transmission. Different possible window lengths may be evaluated for each possible configuration based on one or more performance metrics. For each configuration, a window length that can provide the best performance for that configuration may be selected as a preferred window length for that configuration.
摘要翻译：本文公开了用于窗口化传输的技术。在本公开的一个方面，用于窗口化的窗口的长度可以是可配置的并且基于传输的配置来确定传输。可以基于一个或多个参数来确定传输的配置，例如系统带宽，为传输分配的带宽，系统带宽内的分配带宽的位置，用于传输的调制类型等。在另一个对于本发明的一个方面，可以为传输的多个可能配置中的每一个确定窗口的优选长度。可以基于一个或多个性能度量来针对每个可能的配置来评估不同的可能的窗口长度。对于每个配置，可以选择可以为该配置提供最佳性能的窗口长度作为该配置的首选窗口长度。

4. 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.

5. 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.

6. 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。

7. 发明申请

WO2012012248A1 ADAPTIVE QUANTIZATION OF DECISION METRICS IN A WIRELESS RECEIVER 审中-公开
标题翻译：无线接收机决策量度的自适应量化
公开(公告)号：WO2012012248A1
公开(公告)日：2012-01-26
申请号：PCT/US2011/043897
申请日：2011-07-13
申请人： QUALCOMM INCORPORATED , WILBORN, Thomas, B. , BANISTER, Brian, C. , YUN, Sungho , BHATTACHARJEE, Supratik , KANG, Inyup
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的决策度量和所选量化算法的标记，以使得能够在解码之前恢复表示传输块的决策度量。

8. 发明申请

WO2011163253A2 ENERGY SAVING MODE WITH MAINTAINED NUMBER OF ADVERTISED TRANSMIT ANTENNAS 审中-公开
标题翻译：具有广泛发射天线数量的节能模式
公开(公告)号：WO2011163253A2
公开(公告)日：2011-12-29
申请号：PCT/US2011/041280
申请日：2011-06-21
申请人： QUALCOMM INCORPORATED , BANISTER, Brian, C. , BREHLER, Matthias , GAAL, Peter , KITAZOE, Masato , BHATTAD, Kapil
发明人： BANISTER, Brian, C. , BREHLER, Matthias , GAAL, Peter , KITAZOE, Masato , BHATTAD, Kapil
IPC分类号： H04B7/06 , H04W28/18
CPC分类号： H04W24/08 , H04B7/0608 , H04B7/0691 , H04W72/042 , H04W72/046 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146 , Y02D70/24 , Y02D70/444
摘要： Certain aspects of the present disclosure provide techniques for wireless communications, wherein first number of transit antennas is advertised, but a different number of transmit antennas are actually used for transmission.
摘要翻译：本公开的某些方面提供了用于无线通信的技术，其中通告了第一数量的传输天线，但实际上使用不同数量的发射天线进行传输。

9. 发明申请

WO2011106264A3 MULTI-TERM DEMAPPING FOR MULTI-CHANNEL WIRELESS COMMUNICATION 审中-公开
标题翻译：多通道无线通信的多阶段解复用
公开(公告)号：WO2011106264A3
公开(公告)日：2011-09-01
申请号：PCT/US2011/025552
申请日：2011-02-18
申请人： QUALCOMM Incorporated , MCCLOUD, Michael, L. , BREHLER, Matthias , PARK, Ju Won , PARK, Jong Hyeon , KIM, Je Woo , KANG, Inyup , BANISTER, Brian, C.
发明人： MCCLOUD, Michael, L. , BREHLER, Matthias , PARK, Ju Won , PARK, Jong Hyeon , KIM, Je Woo , KANG, Inyup , BANISTER, Brian, C.
IPC分类号： H04L25/03
摘要： Providing for reduced complexity or improved accuracy in de-mapping received wireless data streams for multi-channel wireless communication is described herein. By way of example, a low-complexity likelihood algorithm can be employed to de-map data bits from the wireless data streams. In one particular example, the likelihood algorithm can approximate a received bit with a subset of received wireless symbols correlated the bit, reducing algorithm complexity. In other examples, a limited set of received wireless symbols can be employed for the subset, further reducing algorithm complexity. According to at least one other example, logarithmic terms of the algorithm can be approximated with non-logarithmic functions, such as a look-up table, series expansion, polynomial approximation, or the like. These approximations can enhance symbol de-mapping accuracy while maintaining or improving processing overhead for a wireless receiver.
摘要翻译：在此描述了针对用于多信道无线通信的接收到的无线数据流进行解映射时降低的复杂度或改进的准确度。举例来说，可以采用低复杂度似然算法来从无线数据流中解映射数据比特。在一个特定示例中，似然算法可以用接收到的与该位相关的无线符号的子集来近似接收的位，从而降低算法复杂度。在其他示例中，可以为该子集采用有限组的接收无线符号，从而进一步降低算法复杂度。根据至少一个其他示例，算法的对数项可以用诸如查找表，序列扩展，多项式近似等的非对数函数近似。这些近似值可以增强符号解映射的准确性，同时保持或改善无线接收器的处理开销。

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