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公开(公告)号：US07477698B2
公开(公告)日：2009-01-13
申请号：US11205504
申请日：2005-08-16
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
IPC分类号： H04B7/02
CPC分类号： H04L1/0606 , H04L1/0071 , H04L1/0618
摘要： Signal encoding in a multiple input multiple output system in a wireless communication network is provided. The communication system provides a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The communication system further provides a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译： 提供了在无线通信网络中的多输入多输出系统中的信号编码。 通信系统提供了一种以Hertz传输系统每秒的速率2复数符号进行编码和传输符号的方法，其对于四个发射天线系统实现四个最大分集，在三个发射天线系统上实现三分之一。 通信系统还提供了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。
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公开(公告)号：US07586997B2
公开(公告)日：2009-09-08
申请号：US11205505
申请日：2005-08-16
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik D. Lindskog , Balaji S. Rajan , Djordje Tujkovic
IPC分类号： H04L27/00
CPC分类号： H04L1/0625 , H04B7/0678 , H04L1/0071 , H04L1/0668 , H04L27/3472
摘要： A communication system is provided that includes signal encoding in a multiple input multiple output system. The communication system includes wireless communication networks. The communication system includes methods of encoding and transmitting symbols in a rate-1 complex symbol per second per Hertz transmission system while achieving maximum diversity. The communication further includes methods of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译： 提供了一种在多输入多输出系统中包括信号编码的通信系统。 通信系统包括无线通信网络。 通信系统包括以每赫兹传输系统每秒速率1复数符号编码和传输符号的方法，同时实现最大分集。 该通信还包括对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。
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公开(公告)号：US20060008025A1
公开(公告)日：2006-01-12
申请号：US11175430
申请日：2005-07-05
IPC分类号： H04B7/02
CPC分类号： H04L1/0625 , H04L1/0071 , H04L1/0643
摘要： The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译： 本发明一般涉及无线通信网络中的多输入多输出系统中的信号编码领域。 本发明具体涉及以每Hertz传输系统每秒速率2复数符号编码和传输符号的方法，其对于四个发射天线系统实现四个最大分集，三个发射天线系统实现三分之一。 本发明公开了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。
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公开(公告)号：US20060034386A1
公开(公告)日：2006-02-16
申请号：US11205504
申请日：2005-08-16
IPC分类号： H04L1/02
CPC分类号： H04L1/0606 , H04L1/0071 , H04L1/0618
摘要： Signal encoding in a multiple input multiple output system in a wireless communication network is provided. The communication system provides a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The communication system further provides a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
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公开(公告)号：US20060008031A1
公开(公告)日：2006-01-12
申请号：US11175621
申请日：2005-07-05
IPC分类号： H04L27/20
CPC分类号： H04B7/0669 , H04B7/0671 , H04L1/0668 , H04L27/2602 , H04L27/34
摘要： The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-1 complex symbol per second per Hertz transmission system while achieving maximum diversity. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译： 本发明一般涉及无线通信网络中的多输入多输出系统中的信号编码领域。 本发明具体涉及一种在实现最大分集的同时以每秒Hertz传输系统的速率1复数符号中编码和传输符号的方法。 本发明公开了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。
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公开(公告)号：US07466759B2
公开(公告)日：2008-12-16
申请号：US11175430
申请日：2005-07-05
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik David Lindskog , Balaji Sundar Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik David Lindskog , Balaji Sundar Rajan , Djordje Tujkovic
IPC分类号： H04B7/02
CPC分类号： H04L1/0625 , H04L1/0071 , H04L1/0643
摘要： The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-2 complex symbol per second per Hertz transmission system that achieves a maximum diversity of four for a four transmit antenna system and a diversity of three on a three transmit antenna system. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译： 本发明一般涉及无线通信网络中的多输入多输出系统中的信号编码领域。 本发明具体涉及以每Hertz传输系统每秒速率2复数符号编码和传输符号的方法，其对于四个发射天线系统实现四个最大分集，三个发射天线系统实现三分之一。 本发明公开了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。
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公开(公告)号：US07450662B2
公开(公告)日：2008-11-11
申请号：US11175621
申请日：2005-07-05
申请人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik David Lindskog , Balaji Sundar Rajan , Djordje Tujkovic
发明人： Shashidhar Vummintala , Arogyaswami Paulraj , Erik David Lindskog , Balaji Sundar Rajan , Djordje Tujkovic
IPC分类号： H04L27/00
CPC分类号： H04B7/0669 , H04B7/0671 , H04L1/0668 , H04L27/2602 , H04L27/34
摘要： The invention relates generally to the field of signal encoding in a multiple input multiple output system in a wireless communication network. This invention specifically relates to a method of encoding and transmitting symbols in a rate-1 complex symbol per second per Hertz transmission system while achieving maximum diversity. The invention discloses a method of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
摘要翻译： 本发明一般涉及无线通信网络中的多输入多输出系统中的信号编码领域。 本发明具体涉及一种在实现最大分集的同时以每秒Hertz传输系统每秒速率1复数符号中编码和传输符号的方法。 本发明公开了一种对复数符号进行交织的方法，使得每个交错符号包括复数符号从旋转星座获得值的至少两个复符号的信息。
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公开(公告)号：US20060034390A1
公开(公告)日：2006-02-16
申请号：US11205505
申请日：2005-08-16
CPC分类号： H04L1/0625 , H04B7/0678 , H04L1/0071 , H04L1/0668 , H04L27/3472
摘要： A communication system is provided that includes signal encoding in a multiple input multiple output system. The communication system includes wireless communication networks. The communication system includes methods of encoding and transmitting symbols in a rate-1 complex symbol per second per Hertz transmission system while achieving maximum diversity. The communication further includes methods of interleaving the complex symbols such that each interleaved symbol comprises information of at least two complex symbols where the complex symbols obtain values from a rotated constellation.
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公开(公告)号：US20090245214A1
公开(公告)日：2009-10-01
申请号：US12079302
申请日：2008-03-26
IPC分类号： H04Q7/24
CPC分类号： H04W72/0413 , H04W8/30
摘要： A method and apparatus of selecting a number of uplink sounding sub-carriers are disclosed. One method includes estimating an uplink channel of between a base station and a subscriber. A time domain channel response is determined from the estimated uplink channel. A sub-carrier distribution of uplink sounding sub-carriers is selected based on characteristics of the time domain channel response, wherein the distribution defines a spacing of pilot sub-carriers within the uplink sounding symbol. The subscriber transmits uplink sounding symbols having the selected sub-carrier distribution.
摘要翻译： 公开了一种选择多个上行探测子载波的方法和装置。 一种方法包括估计基站和用户之间的上行链路信道。 从估计的上行链路信道确定时域信道响应。 基于时域信道响应的特性来选择上行链路探测子载波的子载波分布，其中分布定义了上行探测符号内的导频子载波的间隔。 用户发送具有所选择的子载波分布的上行探测符号。
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10.发明申请Subcarrier allocation in OFDMA with imperfect channel state information at the transmitter 有权OFDMA中的子载波分配在发射机处具有不完善的信道状态信息公开(公告)号：US20070110003A1
公开(公告)日：2007-05-17
申请号：US11454354
申请日：2006-06-16
IPC分类号： H04B17/00
CPC分类号： H04B7/12 , H04B7/0452 , H04B7/06 , H04L5/023 , H04W72/08
摘要： A system and method for digital communications combine features of multiuser diversity and frequency diversity allocation schemes. The system and method retain advantages of multiuser allocation whenever possible by assigning a fraction, α, of the available bandwidth to users in channels where the users are experiencing high SNR. Recognizing that channel state information at the transmitter is not perfect, however, the system and method allocate the remaining bandwidth, 1−α, pseudorandomly according to frequency diversity.
摘要翻译： 一种用于数字通信的系统和方法结合了多用户分集和频率分集分配方案的特征。 该系统和方法通过在用户正在经历高SNR的信道中向用户分配可用带宽的分数α来保持多用户分配的优点。 然而，鉴于发射机的信道状态信息不完善，系统和方法根据频率分集来伪随机分配剩余带宽1-α。
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