公开(公告)号：US08976903B2

公开(公告)日：2015-03-10

申请号：US12552673

申请日：2009-09-02

申请人： Parvathanathan Subrahmanya ,  Andrew Sendonaris ,  Jia Tang ,  Atul A. Salvekar ,  Shantanu Khare ,  Jong Hyeon Park ,  Brian C. Banister ,  Tao Cui

发明人： Parvathanathan Subrahmanya ,  Andrew Sendonaris ,  Jia Tang ,  Atul A. Salvekar ,  Shantanu Khare ,  Jong Hyeon Park ,  Brian C. Banister ,  Tao Cui

IPC分类号： H04L27/00 ,  H04L1/06 ,  H04L1/00 ,  H04L25/03

CPC分类号： H04L1/06 ,  H04L1/005 ,  H04L1/0051 ,  H04L25/03171

摘要： Certain aspects of the present disclosure relate to a method and an apparatus for unified iterative demodulation-decoding that can be employed in both multiple-input multiple-output (MIMO) and non-MIMO wireless systems.

摘要翻译： 本公开的某些方面涉及可以在多输入多输出（MIMO）和非MIMO无线系统中使用的用于统一迭代解调 - 解码的方法和装置。

公开(公告)号：US08670364B2

公开(公告)日：2014-03-11

申请号：US12405236

申请日：2009-03-17

申请人： Wan Ho Kim ,  Chun Woo Lee ,  Jong Ro Park ,  Doo Seok Kim ,  Jong Hyeon Park

发明人： Wan Ho Kim ,  Chun Woo Lee ,  Jong Ro Park ,  Doo Seok Kim ,  Jong Hyeon Park

IPC分类号： H04J3/24

CPC分类号： H04B7/0413 ,  H04L5/0091 ,  H04W72/005

摘要： Certain embodiments of the present disclosure provide a method for supporting multicast and broadcast services (MBS) with multiple-input multiple-output (MIMO) capabilities. This can be achieved by adding specific MIMO information into existing MBS-MAP messages while providing backward compatibility.

摘要翻译： 本公开的某些实施例提供了一种用于支持具有多输入多输出（MIMO）能力的多播和广播服务（MBS）的方法。 这可以通过将特定MIMO信息添加到现有MBS-MAP消息中同时提供向后兼容性来实现。

公开(公告)号：US08626096B2

公开(公告)日：2014-01-07

申请号：US12034954

申请日：2008-03-24

申请人： Jong Hyeon Park ,  Bok Tae Sim ,  Je Woo Kim

发明人： Jong Hyeon Park ,  Bok Tae Sim ,  Je Woo Kim

IPC分类号： H04B17/02

CPC分类号： H04B7/0871 ,  H04B7/0857 ,  H04L1/06 ,  H04L1/08

摘要： A method for combining signals coming from multiple diversity sources may include performing maximal-ratio combining (MRC) based equalization and combining for receiver antenna diversity. The method may also include performing MRC-based equalization and combining for repetition diversity. The method may also include performing MRC-based equalization and combining for duplication diversity. The MRC-based equalization and combining for receiver antenna diversity, the MRC-based equalization and combining for repetition diversity, and the MRC-based equalization and combining for duplication diversity may each be performed separately.

摘要翻译： 用于组合来自多个分集源的信号的方法可以包括执行基于最大比组合（MRC）的均衡和用于接收机天线分集的组合。 该方法还可以包括执行基于MRC的均衡和组合以用于重复分集。 该方法还可以包括执行基于MRC的均衡和组合以用于复制分集。 用于接收机天线分集的基于MRC的均衡和组合，用于重复分集的基于MRC的均衡和组合以及用于复制分集的基于MRC的均衡和组合可以分别进行。

公开(公告)号：US08406335B2

公开(公告)日：2013-03-26

申请号：US13172369

申请日：2011-06-29

申请人： Jong Hyeon Park ,  Ju Won Park ,  Je Woo Kim

发明人： Jong Hyeon Park ,  Ju Won Park ,  Je Woo Kim

IPC分类号： H04B7/02 ,  H04B7/08 ,  H04B7/06 ,  H04L27/00

CPC分类号： H04L1/0015 ,  H04B7/0417 ,  H04B7/0608 ,  H04B7/0689 ,  H04B7/0814 ,  H04B7/0871 ,  H04L1/0001 ,  H04L1/06 ,  H04L27/2608

摘要： The present disclosure includes techniques to process signals in a communication system, in which multiple signal processing units process signals received from multiple antennae. The signal processor units are controlled by operational-mode control signals, which are generated using an estimated Carrier-to-Interference-Noise-Ratio (CINR). The estimated CINR is generated using an equalized and combined signal, which is generated from the received signals and the estimated channel responses using the processed signals according to an operational mode. In another embodiment, a controller generates sub-carrier allocation signals using an allocation base. A channel status information (CSI) and multiple-input-multiple-output (MIMO) controller generates sub-carrier CSI signals and operational-mode control signals using the sub-carrier allocation signals, estimated channel responses, and estimated CINR. The operational-mode control signals select one of multiple antenna paths. A transmitter-diversity processor generates transmitter-diversity signals as a function of at least a mapped signal, sub-carrier CSI signals, and operational mode control signals.

摘要翻译： 本公开包括在通信系统中处理信号的技术，其中多个信号处理单元处理从多个天线接收的信号。 信号处理器单元由使用估计的载波干扰噪声比（CINR）产生的操作模式控制信号来控制。 使用根据操作模式使用经处理的信号的接收信号和估计的信道响应产生的均衡和组合信号来产生估计的CINR。 在另一实施例中，控制器使用分配基地产生副载波分配信号。 信道状态信息（CSI）和多输入多输出（MIMO）控制器使用子载波分配信号，估计的信道响应和估计的CINR来产生副载波CSI信号和操作模式控制信号。 操作模式控制信号选择多个天线路径之一。 发射机分集处理器产生作为至少映射信号，子载波CSI信号和操作模式控制信号的函数的发射机分集信号。

公开(公告)号：US08259866B2

公开(公告)日：2012-09-04

申请号：US11969724

申请日：2008-01-04

申请人： Tae Ryun Chang ,  Jong Hyeon Park ,  Ju Won Park ,  Bok Tae Sim ,  Chun Woo Lee ,  Je Woo Kim

发明人： Tae Ryun Chang ,  Jong Hyeon Park ,  Ju Won Park ,  Bok Tae Sim ,  Chun Woo Lee ,  Je Woo Kim

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H03M13/00 ,  H03M13/3994

摘要： A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed.

摘要翻译： 提供了一种用于解码无线通信传输的编码数据位的方法和装置。 可以生成对应于编码数据位的已知位值的一组先验位值。 可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径，并且通过从可能的解码路径的剩余解码路径中选择解码路径来解码编码数据比特， 没有删除。

公开(公告)号：US08229013B2

公开(公告)日：2012-07-24

申请号：US12211928

申请日：2008-09-17

申请人： Jong Hyeon Park ,  Allert van Zelst ,  Brian Clarke Banister ,  Je Woo Kim ,  Matthias Brehler ,  Vincent K. Jones, IV

发明人： Jong Hyeon Park ,  Allert van Zelst ,  Brian Clarke Banister ,  Je Woo Kim ,  Matthias Brehler ,  Vincent K. Jones, IV

IPC分类号： H04L5/12 ,  H03D1/00

CPC分类号： H04L25/03171 ,  H04L25/03197 ,  H04L25/03331 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A “post-squaring” detection algorithm, and related devices, that may reduce the complexity of maximum likelihood detection (MLD) schemes while preserving their performance is provided. Rather than search for optimum metrics (such as minimum distance metrics) based on squared norm values, a search may be based on un-squared norm metrics, and the squaring may be postponed, for example, until subsequent log-likelihood ratio (LLR) computation. For certain embodiments, approximations of un-squared norm values may significantly reduce computation complexity.

摘要翻译： 提供了可以降低最大似然检测（MLD）方案的复杂性同时保持其性能的“后置”检测算法和相关设备。 搜索可以基于平方范数，而不是基于平方范数搜索最佳度量（例如最小距离度量），并且可以延迟平方，例如直到后续的对数似然比（LLR） 计算。 对于某些实施例，非平方范数值的近似可以显着降低计算复杂度。

公开(公告)号：US08161342B2

公开(公告)日：2012-04-17

申请号：US11956278

申请日：2007-12-13

申请人： Jong Hyeon Park ,  Bok Tae Sim ,  Je Woo Kim ,  Serguei A. Glazko ,  Sameer Nanavati ,  Ju Won Park

发明人： Jong Hyeon Park ,  Bok Tae Sim ,  Je Woo Kim ,  Serguei A. Glazko ,  Sameer Nanavati ,  Ju Won Park

IPC分类号： G08C25/02 ,  G08C25/00

CPC分类号： H04L1/1845 ,  H04L1/1812

摘要： A method and apparatus for combining retransmitted hybrid automatic repeat-request (HARQ) messages at different stages in an OFDM/OFDMA receiver are provided. A combination of different types of HARQ combiners may be designed into the receiver and selected on a per-channel basis. Proper selection of a HARQ combining scheme may reduce the required HARQ buffer size and may provide an increased combining gain when compared to conventional HARQ combining techniques. Furthermore, the HARQ combiner type may be dynamically selected through forward and reverse shifting between the different types of HARQ combining schemes in an effort to decrease the bit error ratio (BER) without saturating the HARQ buffer.

摘要翻译： 提供了一种用于在OFDM / OFDMA接收机中的不同阶段组合重传的混合自动重传请求（HARQ）消息的方法和装置。 可以将不同类型的HARQ组合器的组合设计到接收机中并且在每个信道的基础上进行选择。 HARQ组合方案的正确选择可以减少所需的HARQ缓冲器大小，并且与常规HARQ组合技术相比可以提供增加的组合增益。 此外，可以通过在不同类型的HARQ组合方案之间的正向和反向移位来动态地选择HARQ组合器类型，以努力降低误码率（BER）而不使HARQ缓冲器饱和。

公开(公告)号：US08094735B2

公开(公告)日：2012-01-10

申请号：US11969349

申请日：2008-01-04

申请人： Jong Hyeon Park ,  Tae Ryun Chang ,  Je Woo Kim

发明人： Jong Hyeon Park ,  Tae Ryun Chang ,  Je Woo Kim

IPC分类号： H04K1/10 ,  H04L27/28

CPC分类号： H04L27/2647 ,  H04L5/0046 ,  H04L25/022 ,  H04L2025/03414

摘要： In accordance with a method for processing a received orthogonal frequency division multiple access (OFDMA) signal that comprises a duplicated signal, sub-carriers within the OFDMA signal may be arranged into a duplicated format. The OFDMA signal may be equalized and combined after the sub-carriers have been arranged into the duplicated format. The equalizing and combining may be performed in accordance with a maximum ratio combining (MRC) scheme. The OFDMA signal may be demapped after the equalizing and combining is performed.

摘要翻译： 根据用于处理包括复制信号的接收的正交频分多址（OFDMA）信号的方法，OFDMA信号内的子载波可以被布置为重复格式。 OFDMA信号可以在子载波被布置成重复格式之后被均衡和组合。 可以根据最大比组合（MRC）方案来执行均衡和组合。 在执行均衡和组合之后，可以对OFDMA信号进行解映射。

公开(公告)号：US08059759B2

公开(公告)日：2011-11-15

申请号：US12123406

申请日：2008-05-19

申请人： Jong Hyeon Park ,  Bok Tae Sim ,  Ju Won Park ,  Tae Ryun Chang

发明人： Jong Hyeon Park ,  Bok Tae Sim ,  Ju Won Park ,  Tae Ryun Chang

IPC分类号： H04L27/06

CPC分类号： H04L25/0202 ,  H04L25/03006 ,  H04L27/2649

摘要： Methods and apparatus for initially decoding a frame control header (FCH) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) system in an effort to accurately determine the downlink frame prefix (DLFP) such that the remainder of an OFDM/A frame may be properly decoded are provided. Used, for example, when boosting factors applied in the transmitter to various elements of the OFDM/A frame and/or available pilots for the FCH are unknown, such methods may utilize a preamble channel estimate, the FCH pilots, or a combination thereof.

摘要翻译： 用于在正交频分复用（OFDM）或正交频分多址（OFDMA）系统中首先解码帧控制报头（FCH）的方法和装置，以努力精确地确定下行链路帧前缀（DLFP），使得其余部分 可以适当地解码OFDM / A帧。 例如，当将在发射机中应用的增强因子用于OFDM / A帧的各种元件和/或用于FCH的可用导频是未知的，这样的方法可以利用前导信道估计，FCH导频或其组合。

公开(公告)号：US20110268019A1

公开(公告)日：2011-11-03

申请号：US12769916

申请日：2010-04-29

申请人： Jia Tang ,  Atul A. Salvekar ,  Shantanu Khare ,  Gokhan Mergen ,  Jonathan Sidi ,  Jong Hyeon Park ,  Subramanya P. Rao ,  Abhinav Gupta

发明人： Jia Tang ,  Atul A. Salvekar ,  Shantanu Khare ,  Gokhan Mergen ,  Jonathan Sidi ,  Jong Hyeon Park ,  Subramanya P. Rao ,  Abhinav Gupta

IPC分类号： H04W40/00 ,  H04L27/28

CPC分类号： H04L25/03305 ,  H04L1/0048 ,  H04L1/0054 ,  H04L25/03331

摘要： A method for using a joint decoding engine in a wireless device is disclosed. A first symbol stream and a second symbol stream in a received multiple input multiple output (MIMO) signal is determined. A scaled channel estimate for a wireless transmission channel and a scaled noise covariance of the MIMO signal are also determined. The scaled channel estimate and the first symbol stream are whitened. Max log maximum a posteriori (MLM) processing is performed on the whitened first symbol stream to produce a first data stream. The first data stream may be de-rate matched and decoded to produce a decoded first data stream.

摘要翻译： 公开了一种在无线装置中使用联合解码引擎的方法。 确定接收的多输入多输出（MIMO）信号中的第一符号流和第二符号流。 还确定了无线传输信道的缩放信道估计和MIMO信号的缩放噪声协方差。 缩放的信道估计和第一符号流被白化。 对白化的第一符号流执行最大对数最大后验（MLM）处理以产生第一数据流。 第一数据流可以被去速率匹配和解码以产生解码的第一数据流。