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1.发明授权Methodology and method and apparatus for signaling with capacity optimized constellations 有权具有容量优化星座的信令的方法和方法和装置公开(公告)号：US09385832B2
公开(公告)日：2016-07-05
申请号：US14491731
申请日：2014-09-19
CPC分类号： H04W24/02 , H04B15/00 , H04L1/0003 , H04L1/0009 , H04L27/3405 , H04L27/3483
摘要： Design Methodology and Method and Apparatus for Signaling with Capacity Optimized Constellation Abstract Communication systems are described that use geometrically PSK shaped constellations that have increased capacity compared to conventional PSK constellations operating within a similar SNR band. The geometrically shaped PSK constellation is optimized based upon parallel decoding capacity. In many embodiments, a capacity optimized geometrically shaped constellation can be used to replace a conventional constellation as part of a firmware upgrade to transmitters and receivers within a communication system. In a number of embodiments, the geometrically shaped constellation is optimized for an Additive White Gaussian Noise channel or a fading channel. In numerous embodiments, the communication uses adaptive rate encoding and the location of points within the geometrically shaped constellation changes as the code rate changes.
摘要翻译： 使用容量优化的星座进行信令的设计方法和方法和装置摘要描述了与在类似SNR频带内操作的常规PSK星座相比，使用具有增加的容量的几何PSK形星座的通信系统。 基于并行解码能力优化了几何形状的PSK星座。 在许多实施例中，可以使用容量优化的几何形状的星座来代替传统的星座作为固件升级到通信系统内的发射机和接收机的一部分。 在多个实施例中，针对加性高斯白噪声信道或衰落信道对几何形状的星座进行了优化。 在许多实施例中，通信使用自适应速率编码和几何形状星座中的点的位置随着码率的变化而改变。
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2.发明申请Design Methodology and Method and Apparatus for Signaling with Capacity Optimized Constellations 有权用容量优化星座进行信令的设计方法与方法与装置公开(公告)号：US20150236812A1
公开(公告)日：2015-08-20
申请号：US14491731
申请日：2014-09-19
CPC分类号： H04W24/02 , H04B15/00 , H04L1/0003 , H04L1/0009 , H04L27/3405 , H04L27/3483
摘要： Communication systems are described that use geometrically shaped constellations that have increased capacity compared to conventional constellations operating within a similar SNR band. In several embodiments, the geometrically shaped is optimized based upon a capacity measure such as parallel decoding capacity or joint capacity. In many embodiments, a capacity optimized geometrically shaped constellation can be used to replace a conventional constellation as part of a firmware upgrade to transmitters and receivers within a communication system. In a number of embodiments, the geometrically shaped constellation is optimized for an Additive White Gaussian Noise channel or a fading channel. In numerous embodiments, the communication uses adaptive rate encoding and the location of points within the geometrically shaped constellation changes as the code rate changes. One embodiment of the invention includes a transmitter configured to transmit signals to a receiver via a communication channel, wherein the transmitter, includes a coder configured to receive user bits and output encoded bits at an expanded output encoded bit rate, a mapper configured to map encoded bits to symbols in a symbol constellation, a modulator configured to generate a signal for transmission via the communication channel using symbols generated by the mapper. In addition, the receiver includes a demodulator configured to demodulate the received signal via the communication channel, a demapper configured to estimate likelihoods from the demodulated signal, a decoder that is configured to estimate decoded bits from the likelihoods generated by the demapper. Furthermore, the symbol constellation is a capacity optimized geometrically spaced symbol constellation that provides a given capacity at a reduced signal-to-noise ratio compared to a signal constellation that maximizes dmin.
摘要翻译： 描述了与在类似SNR频带内操作的常规星座相比，使用具有增加的容量的几何形状星座的通信系统。 在几个实施例中，基于诸如并行解码容量或联合容量的容量测量来优化几何形状。 在许多实施例中，可以使用容量优化的几何形状的星座来代替传统的星座作为固件升级到通信系统内的发射机和接收机的一部分。 在多个实施例中，针对加性高斯白噪声信道或衰落信道对几何形状的星座进行了优化。 在许多实施例中，通信使用自适应速率编码和几何形状星座中的点的位置随着码率的变化而改变。 本发明的一个实施例包括：发射机，被配置为经由通信信道向接收机发送信号，其中所述发射机包括被配置为以扩展的输出编码比特率接收用户比特并输出编码比特的编码器，配置成映射编码的 比特到符号星座中的符号，调制器被配置为生成用于通过通信信道传输的信号，使用由映射器产生的符号。 此外，接收机包括被配置为经由通信信道解调接收信号的解调器，被配置为从解调信号估计似然性的解映射器，被配置为从由解映射器生成的似然值估计解码比特的解码器。 此外，符号星座是容量优化的几何间隔的符号星座，与最大化dmin的信号星座相比，以降低的信噪比提供给定容量。
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公开(公告)号：US10149179B2
公开(公告)日：2018-12-04
申请号：US15682475
申请日：2017-08-21
摘要： Transmitters are described that use non-uniformly spaced symbol constellations that have increased capacity compared to conventional constellations. In many embodiments, a transmitter includes a coder configured to receive bits and output encoded bits, a mapper configured to map said encoded bits to symbols in a non-uniform symbol constellation selected from a plurality of symbol constellations, and a modulator configured to generate a signal for transmission via the communication channel using symbols generated by the mapper. In a variety of embodiments, wherein the non-uniform symbol constellation comprises a set of non-uniformly spaced constellation points, and the location points in the non-uniform symbol constellation are chosen to optimize parallel decode capacity of the non-uniform symbol constellation subject to at least one optimization constraint. In many embodiments, the non-uniform symbol constellation is a quadrature amplitude modulation constellation or a phase shift keyed constellation.
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4.发明申请公开(公告)号：US20170374565A1
公开(公告)日：2017-12-28
申请号：US15682512
申请日：2017-08-21
摘要： Communication systems are described that use signal constellations, which have unequally spaced (i.e. ‘geometrically’ shaped) points. In many embodiments, the communication systems use specific geometric constellations that are capacity optimized at a specific SNR, over the Raleigh fading channel. In addition, ranges within which the constellation points of a capacity optimized constellation can be perturbed and are still likely to achieve a given percentage of the optimal capacity increase compared to a constellation that maximizes dmin, are also described. Capacity measures that are used in the selection of the location of constellation points include, but are not limited to, parallel decode (PD) capacity and joint capacity.
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5.发明申请Methods and Apparatuses for Signaling with Geometric Constellations in a Raleigh Fading Channel 有权在罗利衰落信道中用几何星座进行信令的方法和装置公开(公告)号：US20160309342A1
公开(公告)日：2016-10-20
申请号：US14943003
申请日：2015-11-16
CPC分类号： H04W24/02 , H04L1/0003 , H04L1/0009 , H04L5/006 , H04L27/3405 , H04W72/0453 , H04W72/0473
摘要： Communication systems are described that use signal constellations, which have unequally spaced (i.e. ‘geometrically’ shaped) points. In many embodiments, the communication systems use specific geometric constellations that are capacity optimized at a specific SNR, over the Raleigh fading channel. In addition, ranges within which the constellation points of a capacity optimized constellation can be perturbed and are still likely to achieve a given percentage of the optimal capacity increase compared to a constellation that maximizes dmin, are also described. Capacity measures that are used in the selection of the location of constellation points include, but are not limited to, parallel decode (PD) capacity and joint capacity.
摘要翻译： 描述了使用具有不等间隔（即“几何”形状）点的信号星座的通信系统。 在许多实施例中，通信系统使用通过罗利衰落信道在特定SNR下优化容量的特定几何星座。 此外，还描述了与最大化dmin的星座相比，容量优化星座的星座点可以被扰动并且仍然可能实现与最大dmin的星座相比最佳容量增加的给定百分比的范围。 用于选择星座点位置的容量测量包括但不限于并行解码（PD）容量和联合容量。
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6.发明申请公开(公告)号：US20160316382A1
公开(公告)日：2016-10-27
申请号：US15200800
申请日：2016-07-01
CPC分类号： H04W24/02 , H04B15/00 , H04L1/0003 , H04L1/0009 , H04L27/3405 , H04L27/3483
摘要： Communication systems are described that use geometrically shaped constellations that have increased capacity compared to conventional constellations operating within a similar SNR band. In several embodiments, the geometrically shaped is optimized based upon a capacity measure such as parallel decoding capacity or joint capacity. In many embodiments, a capacity optimized geometrically shaped constellation can be used to replace a conventional constellation as part of a firmware upgrade to transmitters and receivers within a communication system. In a number of embodiments, the geometrically shaped constellation is optimized for an Additive White Gaussian Noise channel or a fading channel. In numerous embodiments, the communication uses adaptive rate encoding and the location of points within the geometrically shaped constellation changes as the code rate changes. One embodiment of the invention includes a transmitter configured to transmit signals to a receiver via a communication channel, wherein the transmitter, includes a coder configured to receive user bits and output encoded bits at an expanded output encoded bit rate, a mapper configured to map encoded bits to symbols in a symbol constellation, a modulator configured to generate a signal for transmission via the communication channel using symbols generated by the mapper. In addition, the receiver includes a demodulator configured to demodulate the received signal via the communication channel, a demapper configured to estimate likelihoods from the demodulated signal, a decoder that is configured to estimate decoded bits from the likelihoods generated by the demapper. Furthermore, the symbol constellation is a capacity optimized geometrically spaced symbol constellation that provides a given capacity at a reduced signal-to-noise ratio compared to a signal constellation that maximizes dmin.
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7.发明授权公开(公告)号：US09743292B2
公开(公告)日：2017-08-22
申请号：US15200800
申请日：2016-07-01
CPC分类号： H04W24/02 , H04B15/00 , H04L1/0003 , H04L1/0009 , H04L27/3405 , H04L27/3483
摘要： Communication systems are described that use geometrically shaped constellations that have increased capacity compared to conventional constellations operating within a similar SNR band. In several embodiments, the geometrically shaped is optimized based upon a capacity measure such as parallel decoding capacity or joint capacity. In many embodiments, a capacity optimized geometrically shaped constellation can be used to replace a conventional constellation as part of a firmware upgrade to transmitters and receivers within a communication system. In a number of embodiments, the geometrically shaped constellation is optimized for an Additive White Gaussian Noise channel or a fading channel.
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8.发明授权公开(公告)号：US09743290B2
公开(公告)日：2017-08-22
申请号：US14943003
申请日：2015-11-16
CPC分类号： H04W24/02 , H04L1/0003 , H04L1/0009 , H04L5/006 , H04L27/3405 , H04W72/0453 , H04W72/0473
摘要： Communication systems are described that use signal constellations, which have unequally spaced (i.e. ‘geometrically’ shaped) points. In many embodiments, the communication systems use specific geometric constellations that are capacity optimized at a specific SNR, over the Raleigh fading channel. In addition, ranges within which the constellation points of a capacity optimized constellation can be perturbed and are still likely to achieve a given percentage of the optimal capacity increase compared to a constellation that maximizes dmin, are also described. Capacity measures that are used in the selection of the location of constellation points include, but are not limited to, parallel decode (PD) capacity and joint capacity.
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9.发明授权公开(公告)号：US10362497B2
公开(公告)日：2019-07-23
申请号：US15682512
申请日：2017-08-21
摘要： Communication systems are described that use signal constellations which have unequally spaced (i.e. “geometrically spaced,” or “non-uniform”) points. In many embodiments, the transmitters and receivers use specific non-uniform quadrature amplitude modulation (NU-QAM) constellations. In a variety of embodiments, NU-QAM constellations are capacity optimized using a bit-interleaved coded modulation (BICM, also referred to as “parallel decode”) capacity measure. In a number of embodiments, the transmitters and receivers are described that use specific NU-QAM constellations that provide gains in BICM capacity relative to constellations that maximize the minimum distance between constellation points.
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公开(公告)号：US20180191548A1
公开(公告)日：2018-07-05
申请号：US15826579
申请日：2017-11-29
摘要： Communication systems are described that use signal constellations, which have unequally spaced (i.e. ‘geometrically’ shaped) points. In many embodiments, the communication systems use specific geometric constellations that are capacity optimized at a specific SNR. In addition, ranges within which the constellation points of a capacity optimized constellation can be perturbed and are still likely to achieve a given percentage of the optimal capacity increase compared to a constellation that maximizes dmin, are also described. Capacity measures that are used in the selection of the location of constellation points include, but are not limited to, parallel decode (PD) capacity and joint capacity.
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