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公开(公告)号：US08213552B2
公开(公告)日：2012-07-03
申请号：US12311030
申请日：2007-09-19
IPC分类号： H04L27/06
CPC分类号： H04L25/067 , H04L27/38 , H04L27/3845
摘要： A method of calculating at least one soft bit corresponding to a data symbol received by a radio receiver is described. In one form the method (300) includes, calculating an average amplitude at least one received data symbol. The method also includes calculating (304) at least one threshold amplitude in respect of the data symbol on the basis of the calculated average amplitude. Next a subset of constellation symbols is determined (310) at least partly on the basis of the at least one threshold, and for which a distance determination will be made. The distance between the position of the data symbol and each of the symbols in the subset of constellation symbols is determined (312) and then a soft bit corresponding to the received symbol is calculated (314) on the basis of said determined distances.
摘要翻译： 描述了一种计算与由无线电接收机接收的数据符号相对应的至少一个软比特的方法。 在一种形式中，方法（300）包括：计算至少一个接收到的数据符号的平均幅度。 该方法还包括基于所计算的平均幅度来计算（304）相对于数据符号的至少一个阈值幅度。 接下来，至少部分地基于至少一个阈值确定（310）星座符号的子集（310），并且对其进行距离确定。 确定数据符号的位置与星座符号子集中的每个符号之间的距离（312），然后基于所确定的距离计算与接收到的符号相对应的软比特（314）。
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公开(公告)号：US20090323866A1
公开(公告)日：2009-12-31
申请号：US12311030
申请日：2007-09-19
IPC分类号： H04L27/06
CPC分类号： H04L25/067 , H04L27/38 , H04L27/3845
摘要： A method of calculating at least one soft bit corresponding to a data symbol received by a radio receiver is described. In one form the method (300) includes, calculating an average amplitude at least one received data symbol. The method also includes calculating (304) at least one threshold amplitude in respect of the data symbol on the basis of the calculated average amplitude. Next a subset of constellation symbols is determined (310) at least partly on the basis of the at least one threshold, and for which a distance determination will be made. The distance between the position of the data symbol and each of the symbols in the subset of constellation symbols is determined (312) and then a soft bit corresponding to the received symbol is calculated (314) on the basis of said determined distances.
摘要翻译： 描述了一种计算与由无线电接收机接收的数据符号相对应的至少一个软比特的方法。 在一种形式中，方法（300）包括：计算至少一个接收到的数据符号的平均幅度。 该方法还包括基于所计算的平均幅度来计算（304）相对于数据符号的至少一个阈值幅度。 接下来，至少部分地基于至少一个阈值确定（310）星座符号的子集（310），并且对其进行距离确定。 确定数据符号的位置与星座符号子集中的每个符号之间的距离（312），然后基于所确定的距离计算与接收到的符号相对应的软比特（314）。
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公开(公告)号：US08442162B2
公开(公告)日：2013-05-14
申请号：US13128150
申请日：2009-10-27
申请人： Jiun Siew
发明人： Jiun Siew
IPC分类号： H04L27/06
CPC分类号： H04L25/03006 , H04L1/0606 , H04L25/03318 , H04L2025/03426
摘要： A method for QR-maximum likelihood detection (QR-MLD) demodulation is provided. The method includes determining a transmission reception mode, receiving symbols represented by a received symbol vector, generating a channel matrix, and performing QR decomposition on the channel matrix to compute a unitary matrix and an upper triangular matrix. The method further includes the steps of processing the received symbol vector by multiplying the received symbol vector by the Hermitian of the unitary matrix, determining whether a conjugate calculation will be required to set a conjugate flag, computing a first distance metric by performing a conjugate or non-conjugate first distance metric calculation depending on the conjugate flag, and computing an estimated symbol by performing a conjugate or non-conjugate estimated symbol calculation depending on the conjugate flag. The method provided is less complex than existing demodulation methods, and it may be used to at least demodulate data transmitted via different modes.
摘要翻译： 提供了QR最大似然检测（QR-MLD）解调的方法。 该方法包括：确定发送接收模式，接收由接收的符号向量表示的符号，生成信道矩阵，以及对信道矩阵执行QR分解，以计算酉矩阵和上三角矩阵。 该方法还包括以下步骤：通过将接收到的符号向量乘以酉矩阵的Hermitian来处理接收到的符号向量，确定是否需要共轭计算来设置共轭标志，通过执行共轭来计算第一距离度量 取决于共轭标志的非共轭第一距离度量计算，以及通过根据共轭标志执行共轭或非共轭估计符号计算来计算估计符号。 所提供的方法比现有的解调方法复杂得多，并且可以用于至少解调通过不同模式发送的数据。
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公开(公告)号：US20120213186A1
公开(公告)日：2012-08-23
申请号：US13504428
申请日：2010-07-14
申请人： Boon Loong Ng , Jiun Siew
发明人： Boon Loong Ng , Jiun Siew
CPC分类号： H04L5/0007 , H04L1/1861 , H04L5/0023 , H04L5/0091 , H04L5/026
摘要： A method of downlink control signalling for downlink multiple input/multiple output (MIMO) operation between a Base Transceiver Station (BTS) and User Equipment (UE) includes the following steps. Maintaining one or more mapping tables at a network location accessible by the UE, the mapping tables including first UE signalling data. Transmitting a message index to the UE to enable relevant first UE signalling data to be read by the UE. Transmitting second UE signalling data to the UE. At the UE, using the first and second UE signalling data to derive UE control data.
摘要翻译： 一种用于基站收发信机（BTS）与用户设备（UE）之间的下行链路多输入/多输出（MIMO）操作的下行链路控制信令的方法包括以下步骤。 维护由UE可访问的网络位置处的一个或多个映射表，所述映射表包括第一UE信令数据。 向UE发送消息索引以使UE能够读取相关的第一UE信令数据。 向UE发送第二UE信令数据。 在UE处，使用第一和第二UE信令数据来导出UE控制数据。
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公开(公告)号：US10084574B2
公开(公告)日：2018-09-25
申请号：US13143279
申请日：2010-01-12
申请人： Jiun Siew , Phong Nguyen , Boon Loong Ng
发明人： Jiun Siew , Phong Nguyen , Boon Loong Ng
CPC分类号： H04L5/0007 , H04L1/0003 , H04L1/0013 , H04L5/003 , H04L5/0037 , H04L5/0064
摘要： A method of enhancing a downlink channel coding structure in an OFDMA (orthogonal frequency division multiple access) communication system is provided. The method includes: segmenting a concatenation of multiple transport blocks amongst multiple component carriers; and separately performing link adaptation for each component carrier according to channel conditions experienced by that component carrier.
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公开(公告)号：US08458559B2
公开(公告)日：2013-06-04
申请号：US13125463
申请日：2009-12-25
申请人： Jiun Siew , Phong Nguyen
发明人： Jiun Siew , Phong Nguyen
CPC分类号： H04L1/0079 , H04L1/0072
摘要： A method of encoding a bit sequence over a Physical Downlink Control Channel (PDCCH) having Downlink Control Information (DCI) including: determining DCI bits to provide a DCI bit sequence; performing a CRC calculation on the DCI bit sequence to provide a CRC parity bit sequence; scrambling the CRC parity bit sequence to provide a scrambled CRC bit sequence; if the DCI format is LTE-A, further scrambling the DCI together with the attached scrambled CRC bit sequence to provide a LTE-A scrambled bit sequence; channel coding either the DCI attached scrambled CRC bit sequence or LTE-A scrambled bit sequence to provide a channel coded bit sequence; modulating the channel coded bit sequence to provide a modulated symbol sequence; layer mapping the modulated symbol sequence to one or more antennas associated with a transmitter to provide one or more layers having a symbol sequence; and precoding the layered symbol sequences.
摘要翻译： 一种通过具有下行链路控制信息（DCI）的物理下行链路控制信道（PDCCH）编码比特序列的方法，包括：确定DCI比特以提供DCI比特序列; 对DCI比特序列执行CRC计算以提供CRC奇偶校验位序列; 对CRC校验位序列进行加扰以提供加扰CRC比特序列; 如果DCI格式是LTE-A，则进一步将DCI与附加的加扰CRC比特序列进行加扰，以提供LTE-A加扰比特序列; 信道编码DCI附加加扰CRC比特序列或LTE-A加扰比特序列以提供信道编码比特序列; 调制所述信道编码比特序列以提供调制符号序列; 将调制符号序列映射到与发射机相关联的一个或多个天线以提供具有符号序列的一个或多个层; 并对分层符号序列进行预编码。
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公开(公告)号：US20110268071A1
公开(公告)日：2011-11-03
申请号：US13143279
申请日：2010-01-12
申请人： Jiun Siew , Phong Nguyen , Boon Loong Ng
发明人： Jiun Siew , Phong Nguyen , Boon Loong Ng
CPC分类号： H04L5/0007 , H04L1/0003 , H04L1/0013 , H04L5/003 , H04L5/0037 , H04L5/0064
摘要： A method of enhancing a downlink channel coding structure in an OFDMA (orthogonal frequency division multiple access) communication system is provided. The method includes: segmenting a concatenation of multiple transport blocks amongst multiple component carriers; and separately performing link adaptation for each component carrier according to channel conditions experienced by that component carrier.
摘要翻译： 提供了一种在OFDMA（正交频分多址）通信系统中增强下行链路信道编码结构的方法。 该方法包括：在多个分量载波之间分段多个传输块的级联; 并且根据该分量载波经历的信道条件单独地执行每个分量载波的链路自适应。
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公开(公告)号：US20070054682A1
公开(公告)日：2007-03-08
申请号：US11414310
申请日：2006-05-01
CPC分类号： H04B1/7176 , H04L27/2608
摘要： The present invention relates to broadband wireless communication using multiple carrier frequencies, and the selection or allocation of those frequencies. The invention is particularly but not exclusively related to ultra wideband (UWB) technologies. The present invention provides a method of dynamically selecting carrier frequencies for carrying a broadband channel, the method comprising: allocate a group of carrier frequencies for carrying the broadband channel; identify a number of alterative groups of carrier frequencies; monitor channel performance of the broadband channel for the allocated group of carrier frequencies; re-allocate the broadband channel to be carried by one of the alternative groups of carrier frequencies in response to the monitored channel performance degrading below a threshold.
摘要翻译： 本发明涉及使用多个载波频率的宽带无线通信以及这些频率的选择或分配。 本发明特别地但并非排他地涉及超宽带（UWB）技术。 本发明提供了一种动态选择携带宽带信道的载波频率的方法，该方法包括：分配用于承载宽带信道的一组载频; 识别一些载波频率的替代组; 监测所分配的载波频率的宽带信道的信道性能; 响应于被监控的信道性能降级到阈值以下，重新分配要由其中一个载波频率的一个载波承载的宽带信道。
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公开(公告)号：US08792445B2
公开(公告)日：2014-07-29
申请号：US13504428
申请日：2010-07-14
申请人： Boon Loong Ng , Jiun Siew
发明人： Boon Loong Ng , Jiun Siew
CPC分类号： H04L5/0007 , H04L1/1861 , H04L5/0023 , H04L5/0091 , H04L5/026
摘要： A method of downlink control signalling for downlink multiple input/multiple output (MIMO) operation between a Base Transceiver Station (BTS) and User Equipment (UE) includes the following steps. Maintaining one or more mapping tables at a network location accessible by the UE, the mapping tables including first UE signalling data. Transmitting a message index to the UE to enable relevant first UE signalling data to be read by the UE. Transmitting second UE signalling data to the UE. At the UE, using the first and second UE signalling data to derive UE control data.
摘要翻译： 一种用于基站收发信机（BTS）与用户设备（UE）之间的下行链路多输入/多输出（MIMO）操作的下行链路控制信令的方法包括以下步骤。 维护由UE可访问的网络位置处的一个或多个映射表，所述映射表包括第一UE信令数据。 向UE发送消息索引以使UE能够读取相关的第一UE信令数据。 向UE发送第二UE信令数据。 在UE处，使用第一和第二UE信令数据来导出UE控制数据。
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公开(公告)号：US20110283171A1
公开(公告)日：2011-11-17
申请号：US13125463
申请日：2009-12-25
申请人： Jiun Siew , Phong Nguyen
发明人： Jiun Siew , Phong Nguyen
CPC分类号： H04L1/0079 , H04L1/0072
摘要： A method of encoding a bit sequence over a Physical Downlink Control Channel (PDCCH) having Downlink Control Information (DCI) including: determining DCI bits to provide a DCI bit sequence; performing a CRC calculation on the DCI bit sequence to provide a CRC parity bit sequence; scrambling the CRC parity bit sequence to provide a scrambled CRC bit sequence; if the DCI format is LTE-A, further scrambling the DCI together with the attached scrambled CRC bit sequence to provide a LTE-A scrambled bit sequence; channel coding either the DCI attached scrambled CRC bit sequence or LTE-A scrambled bit sequence to provide a channel coded bit sequence; modulating the channel coded bit sequence to provide a modulated symbol sequence; layer mapping the modulated symbol sequence to one or more antennas associated with a transmitter to provide one or more layers having a symbol sequence; and precoding the layered symbol sequences.
摘要翻译： 一种通过具有下行链路控制信息（DCI）的物理下行链路控制信道（PDCCH）编码比特序列的方法，包括：确定DCI比特以提供DCI比特序列; 对DCI比特序列执行CRC计算以提供CRC奇偶校验位序列; 对CRC校验位序列进行加扰以提供加扰CRC比特序列; 如果DCI格式是LTE-A，则进一步将DCI与附加的加扰CRC比特序列进行加扰，以提供LTE-A加扰比特序列; 信道编码DCI附加加扰CRC比特序列或LTE-A加扰比特序列以提供信道编码比特序列; 调制所述信道编码比特序列以提供调制符号序列; 将调制符号序列映射到与发射机相关联的一个或多个天线以提供具有符号序列的一个或多个层; 并对分层符号序列进行预编码。
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