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公开(公告)号：US20110280333A1
公开(公告)日：2011-11-17
申请号：US12780774
申请日：2010-05-14
申请人： Lin Yang , Sandip Sarkar , Durga Prasad Malladi , Dung N. Doan
发明人： Lin Yang , Sandip Sarkar , Durga Prasad Malladi , Dung N. Doan
IPC分类号： H04L27/00
CPC分类号： H04L5/003
摘要： Systems and methodologies are described that facilitate utilizing dedicated reference signal in connection with downlink transmissions. A dedicated reference signal can comprise a set of dedicated reference symbols, which are inserted into a resource block in accordance with a specification provided by a dedicated reference signal structure. The dedicated reference signal structure can vary according to a rank utilized in the downlink transmission.
摘要翻译： 描述了有助于利用与下行链路传输相关联的专用参考信号的系统和方法。 专用参考信号可以包括一组专用参考符号，它们根据由专用参考信号结构提供的规范插入到资源块中。 专用参考信号结构可以根据下行链路传输中使用的等级而变化。
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公开(公告)号：US09014301B2
公开(公告)日：2015-04-21
申请号：US12780774
申请日：2010-05-14
申请人： Lin Yang , Sandip Sarkar , Durga Prasad Malladi , Dung N. Doan
发明人： Lin Yang , Sandip Sarkar , Durga Prasad Malladi , Dung N. Doan
CPC分类号： H04L5/003
摘要： Systems and methodologies are described that facilitate utilizing dedicated reference signal in connection with downlink transmissions. A dedicated reference signal can comprise a set of dedicated reference symbols, which are inserted into a resource block in accordance with a specification provided by a dedicated reference signal structure. The dedicated reference signal structure can vary according to a rank utilized in the downlink transmission.
摘要翻译： 描述了有助于利用与下行链路传输相关联的专用参考信号的系统和方法。 专用参考信号可以包括一组专用参考符号，它们根据由专用参考信号结构提供的规范插入到资源块中。 专用参考信号结构可以根据下行链路传输中使用的等级而变化。
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公开(公告)号：US08913695B2
公开(公告)日：2014-12-16
申请号：US12045501
申请日：2008-03-10
申请人： Durga Prasad Malladi , Dung N. Doan
发明人： Durga Prasad Malladi , Dung N. Doan
CPC分类号： H04L5/005 , H04B2201/70701 , H04L5/0007 , H04L5/0051 , H04L25/0224
摘要： Systems and methodologies are described that facilitate employing a hybrid pilot configuration in a wireless communications network. A hybrid pilot configuration includes common pilot symbols and dedicated pilots multiplexed together within a time transmission interval. The multiplexed pilot symbols can be received and utilized to demodulate channels. Common pilot symbols can be employed to demodulate control channels and dedicated pilot symbols can be utilized to demodulate data channels. Moreover, the dedicated pilot symbols can be employed to generate a channel estimate. The common pilot channels can be utilized in combination with the dedicated pilot symbols to augment the channel estimate.
摘要翻译： 描述了有助于在无线通信网络中采用混合导频配置的系统和方法。 混合导频配置包括在时间传输间隔内多路复用在一起的公共导频符号和专用导频。 多路复用导频符号可被接收并用于解调信道。 可以采用公共导频符号来解调控制信道，并且可以使用专用导频符号来解调数据信道。 此外，可以采用专用导频符号来产生信道估计。 公共导频信道可以与专用导频符号结合使用，以增加信道估计。
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公开(公告)号：US07839308B2
公开(公告)日：2010-11-23
申请号：US12027972
申请日：2008-02-07
CPC分类号： H04W28/18 , H04L1/001 , H04L1/0033 , H04L1/0072 , H04L1/0079 , H04L1/06 , H04L5/0007 , H04L27/2601
摘要： Systems, methodologies, and devices are described that can facilitate bandwidth efficient non-coherent signaling for uplink control channel transmissions. A communication device (e.g., a mobile device, base station) can be configured to utilize or generate a set of complex orthogonal codewords to facilitate transmission of control channel information using non-coherent signaling in a bandwidth efficient manner. A complex orthogonal codeword set can comprise a first subset of codewords where such codewords have a desirable cross-correlation property and another subset(s) of codewords that can include expurgated codewords, where the expurgated codewords can include discarded codewords and/or codeword pairs that produce a worst-case cross-correlation property. The codeword set and subsets are determined based at least in part on a predefined codeword criterion. A portion of the discarded codewords can be used for other purposes, such as erasure decoding, interference-level estimation, and/or multi-mode control channel operation.
摘要翻译： 描述了可以促进用于上行链路控制信道传输的带宽有效的非相干信令的系统，方法和设备。 通信设备（例如，移动设备，基站）可以被配置为利用或生成一组复杂的正交码字，以便以带宽有效的方式使用非相干信令来传输控制信道信息。 复数正交码字集合可以包括这样的码字的第一子集，其中这些码字具有期望的互相关属性，并且另一个码字子集可以包括被排除的码字，其中被排除的码字可以包括丢弃的码字和/或码字对， 产生最坏情况的互相关属性。 至少部分地基于预定义的码字标准来确定码字集合和子集。 丢弃的码字的一部分可以用于其它目的，例如擦除解码，干扰电平估计和/或多模式控制信道操作。
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公开(公告)号：US20090016459A1
公开(公告)日：2009-01-15
申请号：US12027972
申请日：2008-02-07
CPC分类号： H04W28/18 , H04L1/001 , H04L1/0033 , H04L1/0072 , H04L1/0079 , H04L1/06 , H04L5/0007 , H04L27/2601
摘要： Systems, methodologies, and devices are described that can facilitate bandwidth efficient non-coherent signaling for uplink control channel transmissions. A communication device (e.g., a mobile device, base station) can be configured to utilize or generate a set of complex orthogonal codewords to facilitate transmission of control channel information using non-coherent signaling in a bandwidth efficient manner. A complex orthogonal codeword set can comprise a first subset of codewords where such codewords have a desirable cross-correlation property and another subset(s) of codewords that can include expurgated codewords, where the expurgated codewords can include discarded codewords and/or codeword pairs that produce a worst-case cross-correlation property. The codeword set and subsets are determined based at least in part on a predefined codeword criterion. A portion of the discarded codewords can be used for other purposes, such as erasure decoding, interference-level estimation, and/or multi-mode control channel operation.
摘要翻译： 描述了可以促进用于上行链路控制信道传输的带宽有效的非相干信令的系统，方法和设备。 通信设备（例如，移动设备，基站）可以被配置为利用或生成一组复杂的正交码字，以便以带宽有效的方式使用非相干信令来传输控制信道信息。 复数正交码字集合可以包括这样的码字的第一子集，其中这些码字具有期望的互相关属性，并且另一个码字子集可以包括被排除的码字，其中被排除的码字可以包括丢弃的码字和/或码字对， 产生最坏情况的互相关属性。 至少部分地基于预定义的码字标准来确定码字集合和子集。 丢弃的码字的一部分可以用于其它目的，例如擦除解码，干扰电平估计和/或多模式控制信道操作。
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6.发明授权Data detection and decoding with considerations for channel estimation errors due to guard subbands 有权考虑到由于保护子带导致的信道估计误差的数据检测和解码公开(公告)号：US08325863B2
公开(公告)日：2012-12-04
申请号：US11248975
申请日：2005-10-11
IPC分类号： H03D1/06
CPC分类号： H04L25/03318 , H04L25/0226 , H04L25/03171 , H04L25/03292
摘要： Techniques for performing data detection and decoding in a manner to account for guard subbands are described. A receiver obtains received pilot symbols for pilot subbands and received data symbols for data subbands. Channel estimates are derived based on the received pilot symbols with zeroed-out pilot subbands filled with zeros. Data detection is performed on the received data symbols with the channel estimates to obtain data symbol estimates. Estimates of noise and estimation errors due to the zeroed-out pilot subbands are derived. LLRs are then computed based on the data symbol estimates, the channel estimates, and the estimates of the noise and estimation errors. The LLRs are deinterleaved and decoded to obtain decoded data.
摘要翻译： 描述了以考虑保护子带的方式执行数据检测和解码的技术。 接收机获得用于导频子带的接收导频符号和用于数据子带的接收数据符号。 基于接收到的导频符号导出信道估计，其中零导频子带填充零。 对具有信道估计的接收数据符号执行数据检测以获得数据符号估计。 导出由于零零导频子带导致的噪声和估计误差的估计。 然后基于数据符号估计，信道估计以及噪声和估计误差的估计来计算LLR。 LLR被解交织并解码以获得解码数据。
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公开(公告)号：US20110280345A1
公开(公告)日：2011-11-17
申请号：US12778605
申请日：2010-05-12
申请人： Dung N. Doan , Jack K. Wolf , Yongbin Wei
发明人： Dung N. Doan , Jack K. Wolf , Yongbin Wei
IPC分类号： H04L27/06
CPC分类号： H03M13/413 , H03M13/6525
摘要： Methods and apparatuses for enhanced processing of received channels in a mobile communications system is described. Particularly, convolutionally encoded tail biting data in a mobile communications system is efficiently decoding by replicating the received encoded signal N times, where N equals a number of iterations. A Viterbi decoding algorithm is applied and a most likely survivor path is obtained. The ensuing decoding window is set as a fixed decoding window and placed at a mid-section of the most likely survivor path. Simulations have shown codeword accuracy to be comparable to MLSE with less complexity. A high degree of accuracy has been obtained for N=3.
摘要翻译： 描述了用于移动通信系统中的接收信道的增强处理的方法和装置。 特别地，在移动通信系统中卷积编码的尾巴数据通过复制所接收的编码信号N次而有效地进行解码，其中N等于迭代次数。 应用维特比解码算法，获得最可能的幸存路径。 随后的解码窗口被设置为固定解码窗口并且被放置在最可能的幸存路径的中间部分。 仿真结果表明，码字精度与MLSE相当，复杂度较低。 对于N = 3，获得了高度的准确度。
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公开(公告)号：US08548102B2
公开(公告)日：2013-10-01
申请号：US12778605
申请日：2010-05-12
申请人： Dung N. Doan , Jack K. Wolf , Yongbin Wei
发明人： Dung N. Doan , Jack K. Wolf , Yongbin Wei
CPC分类号： H03M13/413 , H03M13/6525
摘要： Methods and apparatuses for enhanced processing of received channels in a mobile communications system is described. Particularly, convolutionally encoded tail biting data in a mobile communications system is efficiently decoding by replicating the received encoded signal N times, where N equals a number of iterations. A Viterbi decoding algorithm is applied and a most likely survivor path is obtained. The ensuing decoding window is set as a fixed decoding window and placed at a mid-section of the most likely survivor path. Simulations have shown codeword accuracy to be comparable to MLSE with less complexity. A high degree of accuracy has been obtained for N=3.
摘要翻译： 描述了用于移动通信系统中的接收信道的增强处理的方法和装置。 特别地，在移动通信系统中卷积编码的尾巴数据通过复制所接收的编码信号N次而有效地进行解码，其中N等于迭代次数。 应用维特比解码算法，获得最可能的幸存路径。 随后的解码窗口被设置为固定解码窗口并且被放置在最可能的幸存路径的中间部分。 仿真结果表明，码字精度与MLSE相当，复杂度较低。 对于N = 3，获得了高度的准确度。
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