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公开(公告)号：US07660368B2
公开(公告)日：2010-02-09
申请号：US11330652
申请日：2006-01-11
申请人： Fuyun Ling , Seong Taek Chung , Jinxia Bai , Thomas Sun
发明人： Fuyun Ling , Seong Taek Chung , Jinxia Bai , Thomas Sun
IPC分类号： H03D3/22
CPC分类号： H04L27/3488 , H04L1/0045 , H04L1/0065 , H04L1/0066 , H04L27/2604 , H04L2001/0098
摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.
摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常定义为k12或k22。 该方法选择k12和k22之间的不匹配能量比（k2），并使用不匹配的k2能量比生成双层QPSK turbo解码的比特LLR值。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k2为约5.0625。 或者说，通过确定k12和k22之间的近似中点，选择的不匹配的k2能量比。
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公开(公告)号：US08102949B2
公开(公告)日：2012-01-24
申请号：US12646543
申请日：2009-12-23
申请人： Fuyun Ling , Seong Taek Chung , Jinxia Bai , Thomas Sun
发明人： Fuyun Ling , Seong Taek Chung , Jinxia Bai , Thomas Sun
IPC分类号： H03D3/22
CPC分类号： H04L27/3488 , H04L1/0045 , H04L1/0065 , H04L1/0066 , H04L27/2604 , H04L2001/0098
摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.
摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常定义为k12或k22。 该方法选择k12和k22之间的不匹配能量比（k2），并使用不匹配的k2能量比生成双层QPSK turbo解码的比特LLR值。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k2为约5.0625。 或者说，通过确定k12和k22之间的近似中点，选择的不匹配的k2能量比。
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公开(公告)号：US20100098192A1
公开(公告)日：2010-04-22
申请号：US12646543
申请日：2009-12-23
申请人： Fuyun Ling , Seong Taek Chung , Jinxia Bai , Thomas Sun
发明人： Fuyun Ling , Seong Taek Chung , Jinxia Bai , Thomas Sun
CPC分类号： H04L27/3488 , H04L1/0045 , H04L1/0065 , H04L1/0066 , H04L27/2604 , H04L2001/0098
摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.
摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常定义为k12或k22。 该方法选择k12和k22之间的不匹配能量比（k2），并使用不匹配的k2能量比生成双层QPSK turbo解码的比特LLR值。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k2为约5.0625。 或者说，通过确定k12和k22之间的近似中点，选择的不匹配的k2能量比。
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公开(公告)号：US20060178755A1
公开(公告)日：2006-08-10
申请号：US11330652
申请日：2006-01-11
申请人： Fuyun Ling , Seong Chung , Jinxia Bai , Thomas Sun
发明人： Fuyun Ling , Seong Chung , Jinxia Bai , Thomas Sun
IPC分类号： G05B15/00
CPC分类号： H04L27/3488 , H04L1/0045 , H04L1/0065 , H04L1/0066 , H04L27/2604 , H04L2001/0098
摘要： A system and method are provided for generating bit log likelihood ratio (LLR) values for two-layered Quadrature Phase-Shift Keying (QPSK) turbo decoding in a wireless communications user terminal (UT). The method includes receiving a two-layered QPSK signal with an energy ratio that is unknown, but typically defined as either k12 or k22. The method selects a mismatched energy ratio (k2) between k12 and k22, and generating bit LLR values for two-layered QPSK turbo decoding, using the mismatched k2 energy ratio. For example, if the received two-layered QPSK signal is known to have an energy ratio of about 4 or about 6.25. Then, k2 is selected to be about 5.0625. Alternately stated, the mismatched k2 energy ratio in selected by determining the approximate midpoint between k12 and k22.
摘要翻译： 提供了一种用于在无线通信用户终端（UT）中生成用于双层正交相移键控（QPSK）turbo解码的比特对数似然比（LLR）值的系统和方法。 该方法包括以未知的能量比接收两层QPSK信号，但通常被定义为k1≤2或k2≥2。 该方法选择k1 <2> 2和k2 <2>之间的不匹配能量比（k <2> 2），并为双层QPSK涡轮增益产生位LLR值 使用不匹配的k <2>能量比进行解码。 例如，如果已知所接收的两层QPSK信号具有约4或约6.25的能量比。 然后，选择k <2>为约5.0625。 或者说，通过确定k1 <2> 2和k2 <2>之间的近似中点，所选择的不匹配的k 2 2能量比。
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公开(公告)号：US20070258532A1
公开(公告)日：2007-11-08
申请号：US11416853
申请日：2006-05-02
申请人： Jinxia Bai , Thomas Sun
发明人： Jinxia Bai , Thomas Sun
CPC分类号： H04L1/0071 , H04L1/0018 , H04L1/0066 , H04L2001/0093
摘要： Systems and methods are provided to process wireless data packets. A method includes determining a subset of data bits to be processed at a wireless transmitter and employing a clock edge to store the data. The clock edge allows parallel mapping of at least two bits from the subset of data bits into an interleaver memory per a given clock edge. From the memory, other encoding and scrambling processes are applied before transmitting the data packets across a wireless network.
摘要翻译： 提供系统和方法来处理无线数据分组。 一种方法包括确定要在无线发射机处理的数据比特的子集，并采用时钟边缘来存储数据。 时钟沿允许从每个给定时钟沿到数据比特子集的至少两个比特到交织器存储器的并行映射。 从存储器中，在通过无线网络发送数据分组之前应用其他编码和加扰处理。
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6.发明授权公开(公告)号：US08223853B2
公开(公告)日：2012-07-17
申请号：US11329891
申请日：2006-01-10
申请人： Rajiv Vijayan , Seong Taek Chung , Thomas Sun
发明人： Rajiv Vijayan , Seong Taek Chung , Thomas Sun
IPC分类号： H04K1/10
CPC分类号： H04L27/3488 , H04L1/0045 , H04L1/005 , H04L1/0065 , H04L1/0066 , H04L1/007 , H04L27/2608 , H04L27/2626 , H04L27/2647 , H04L27/2649 , H04L2001/0098
摘要： A decoder for a layered modulation system can be configured to independently and concurrently decode each of a base and enhancement layer. The base layer decoder and enhancement layer decoder can be configured substantially in parallel and can each operate concurrently on the same received layered modulation symbol. Each of the base and enhancement layer decoders can be configured with a bit metric module that is configured to determine a signal quality metric based on the received symbol. In systems having turbo encoded data, the bit metric module can be configured to determine a log likelihood ratio. The ratio is based in part on a channel estimate and an energy ratio used in the layered modulation constellation.
摘要翻译： 用于分层调制系统的解码器可以被配置为独立地并且解码每个基本和增强层。 基本层解码器和增强层解码器可以基本并行配置，并且可以在相同的接收分层调制符号上同时操作。 基本和增强层解码器中的每一个可以配置有位度量模块，其被配置为基于接收到的符号来确定信号质量度量。 在具有turbo编码数据的系统中，比特量度模块可被配置为确定对数似然比。 该比率部分地基于在分层调制星座中使用的信道估计和能量比。
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公开(公告)号：US08213548B2
公开(公告)日：2012-07-03
申请号：US11398205
申请日：2006-04-04
申请人： Jinxia Bai , Chinnappa K. Ganapathy , Thomas Sun
发明人： Jinxia Bai , Chinnappa K. Ganapathy , Thomas Sun
CPC分类号： H04L27/2647 , H04L1/0045 , H04L1/0066 , H04L1/007 , H04L25/067
摘要： Methods and apparatus for dynamic packet reordering. In an aspect, a method is provided for processing slot data on-the-fly to produce decodable packets, wherein the slot data includes interleaved modulation symbols. The method includes de-interleaving a stream of the interleaved modulation symbols to produce a stream of modulation symbols, calculating parallel streams of LLR metrics based on the stream of modulation symbols, and mapping the parallel streams of LLR metrics to produce a stream of decodable packets. In another aspect, an apparatus is provided the includes de-interleaving logic to de-interleave a stream of interleaved modulation symbols to produce a stream of modulation symbols, metric processing logic configured to produce parallel streams of LLR metrics based on the stream of modulation symbols, and mapping logic configured to map the parallel streams of LLR metrics to produce a stream of decodable packets.
摘要翻译： 动态数据包重新排序的方法和装置。 在一方面，提供了一种用于在运行中处理时隙数据以产生可解码分组的方法，其中时隙数据包括交织的调制符号。 该方法包括对交织的调制符号的流进行解交织以产生调制符号流，基于调制符号流计算LLR度量的并行流，以及映射LLR度量的并行流以产生可解码分组流 。 在另一方面，提供了一种装置，其包括解交织逻辑以对交织的调制符号流进行解交织以产生调制符号流，度量处理逻辑被配置为基于调制符号流产生并行的LLR度量流 以及配置成映射LLR度量的并行流的映射逻辑以产生可解码分组流。
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公开(公告)号：US20070230490A1
公开(公告)日：2007-10-04
申请号：US11398156
申请日：2006-04-04
申请人： Jinxia Bai , Chinnappa Ganapathy , Thomas Sun
发明人： Jinxia Bai , Chinnappa Ganapathy , Thomas Sun
IPC分类号： H04L12/56
CPC分类号： H04N21/434 , H04L27/2647 , H04L49/9078 , H04W8/26 , H04W28/14
摘要： Methods and apparatus for dynamic packet mapping. A method is provided for mapping metric data to produce a decodable packet associated with a channel. The method includes obtaining a channel identifier associated with metric data, determining an available buffer from a plurality of buffers based on the channel identifier, writing the metric data to the available buffer, detecting when a decodable packet is formed in a selected buffer of the plurality of buffers, and outputting the decodable packet from the selected buffer. An apparatus includes a plurality of buffers and mapping logic that is configured to obtain a channel identifier associated with metric data, determine an available buffer based on the channel identifier, write the metric data to the available buffer, detect when a decodable packet is formed in a selected buffer, and output the decodable packet from the selected buffer.
摘要翻译： 动态分组映射的方法和装置。 提供了一种用于映射度量数据以产生与信道相关联的可解码分组的方法。 该方法包括获取与度量数据相关联的信道标识符，基于信道标识确定来自多个缓冲器的可用缓冲器，将度量数据写入可用缓冲器，检测何时在多个选定缓冲器中形成可解码分组 并且从所选择的缓冲器输出可解码分组。 一种装置包括多个缓冲器和映射逻辑，其被配置为获得与度量数据相关联的信道标识符，基于信道标识确定可用缓冲器，将度量数据写入可用缓冲器，检测何时形成可解码分组 选择的缓冲器，并从所选缓冲器输出可解码分组。
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公开(公告)号：US20070230632A1
公开(公告)日：2007-10-04
申请号：US11398205
申请日：2006-04-04
申请人： Jinxia Bai , Chinnappa Ganapathy , Thomas Sun
发明人： Jinxia Bai , Chinnappa Ganapathy , Thomas Sun
IPC分类号： H03D1/00
CPC分类号： H04L27/2647 , H04L1/0045 , H04L1/0066 , H04L1/007 , H04L25/067
摘要： Methods and apparatus for dynamic packet reordering. In an aspect, a method is provided for processing slot data on-the-fly to produce decodable packets, wherein the slot data includes interleaved modulation symbols. The method includes de-interleaving a stream of the interleaved modulation symbols to produce a stream of modulation symbols, calculating parallel streams of LLR metrics based on the stream of modulation symbols, and mapping the parallel streams of LLR metrics to produce a stream of decodable packets. In another aspect, an apparatus is provided the includes de-interleaving logic to de-interleave a stream of interleaved modulation symbols to produce a stream of modulation symbols, metric processing logic configured to produce parallel streams of LLR metrics based on the stream of modulation symbols, and mapping logic configured to map the parallel streams of LLR metrics to produce a stream of decodable packets.
摘要翻译： 动态数据包重新排序的方法和装置。 在一方面，提供了一种用于在运行中处理时隙数据以产生可解码分组的方法，其中时隙数据包括交织的调制符号。 该方法包括对交织的调制符号的流进行解交织以产生调制符号流，基于调制符号流计算LLR度量的并行流，以及映射LLR度量的并行流以产生可解码分组流 。 在另一方面，提供了一种装置，其包括解交织逻辑以对交织的调制符号流进行解交织以产生调制符号流，度量处理逻辑被配置为基于调制符号流产生并行的LLR度量流 以及配置成映射LLR度量的并行流的映射逻辑以产生可解码分组流。
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公开(公告)号：US08139612B2
公开(公告)日：2012-03-20
申请号：US11398156
申请日：2006-04-04
申请人： Jinxia Bai , Chinnappa K. Ganapathy , Thomas Sun
发明人： Jinxia Bai , Chinnappa K. Ganapathy , Thomas Sun
CPC分类号： H04N21/434 , H04L27/2647 , H04L49/9078 , H04W8/26 , H04W28/14
摘要： Methods and apparatus for dynamic packet mapping. A method is provided for mapping metric data to produce a decodable packet associated with a channel. The method includes obtaining a channel identifier associated with metric data, determining an available buffer from a plurality of buffers based on the channel identifier, writing the metric data to the available buffer, detecting when a decodable packet is formed in a selected buffer of the plurality of buffers, and outputting the decodable packet from the selected buffer. An apparatus includes a plurality of buffers and mapping logic that is configured to obtain a channel identifier associated with metric data, determine an available buffer based on the channel identifier, write the metric data to the available buffer, detect when a decodable packet is formed in a selected buffer, and output the decodable packet from the selected buffer.
摘要翻译： 动态分组映射的方法和装置。 提供了一种用于映射度量数据以产生与信道相关联的可解码分组的方法。 该方法包括获取与度量数据相关联的信道标识符，基于信道标识确定来自多个缓冲器的可用缓冲器，将度量数据写入可用缓冲器，检测何时在多个选定缓冲器中形成可解码分组 并且从所选择的缓冲器输出可解码分组。 一种装置包括多个缓冲器和映射逻辑，其被配置为获得与度量数据相关联的信道标识符，基于信道标识确定可用缓冲器，将度量数据写入可用缓冲器，检测何时形成可解码分组 选择的缓冲器，并从所选缓冲器输出可解码分组。
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