公开(公告)号：US20060034390A1

公开(公告)日：2006-02-16

申请号：US11205505

申请日：2005-08-16

申请人： Shashidhar Vummintala ,  Arogyaswami Paulraj ,  Erik Lindskog ,  Balaji Sundar ,  Djordje Tujkovic

发明人： Shashidhar Vummintala ,  Arogyaswami Paulraj ,  Erik Lindskog ,  Balaji Sundar ,  Djordje Tujkovic

IPC分类号： H04B7/06 ,  H04B7/02

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.

公开(公告)号：US08514728B2

公开(公告)日：2013-08-20

申请号：US11821287

申请日：2007-06-22

申请人： Djordje Tujkovic ,  David Garrett ,  Ying Xia ,  Erik Lindskog ,  Brett Schein ,  Varaprasad Javvadi

发明人： Djordje Tujkovic ,  David Garrett ,  Ying Xia ,  Erik Lindskog ,  Brett Schein ,  Varaprasad Javvadi

IPC分类号： H04L12/26

CPC分类号： H04L43/06 ,  H04W24/08 ,  H04W28/06

摘要： Methods and systems for estimating Temporal Correlation (TC) of a propagation channel are provided. In an embodiment, a method for estimating the TC of the propagation channel comprises obtaining multiple channel quality reports of the propagation channel and estimating the TC of the propagation channel based on the multiple channel quality reports.

摘要翻译： 提供了用于估计传播信道的时间相关（TC）的方法和系统。 在一个实施例中，用于估计传播信道的TC的方法包括基于多个信道质量报告获得传播信道的多个信道质量报告和估计传播信道的TC。

公开(公告)号：US07680206B2

公开(公告)日：2010-03-16

申请号：US11701072

申请日：2007-01-31

申请人： Djordje Tujkovic ,  Erik Lindskog ,  Vara Prasad ,  Somichetty Gowrisankar ,  Erik Westman

发明人： Djordje Tujkovic ,  Erik Lindskog ,  Vara Prasad ,  Somichetty Gowrisankar ,  Erik Westman

IPC分类号： H04B7/02

CPC分类号： H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L27/2626

摘要： Embodiments are directed to a link adaptation method that selects the optimum transmission scheme and modulation and coding signal (MCS) level within a MIMO system, based on optimal maximum throughput on the channels. The method selects the MCS levels and spatial rate values for broadband communication systems based on the instantaneous broadband MIMO-OFDM signaling capacities. The transmission rate over the transmission channel is selected based on a comparison of the capacities achieved under diversity coding and spatial multiplexing MIMO transmission schemes. The effect of a particular receiver type or implementation can also be factored into the signaling capacity. For a fixed target probability of error, the scheme or spatial rate that has the higher instantaneous throughput is selected for transmission.

摘要翻译： 实施例涉及一种基于信道上的最佳最大吞吐量来选择MIMO系统内的最佳传输方案和调制和编码信号（MCS）级别的链路自适应方法。 该方法基于瞬时宽带MIMO-OFDM信令容量选择宽带通信系统的MCS级别和空间速率值。 基于在分集编码和空间复用MIMO传输方案下实现的容量的比较来选择传输信道上的传输速率。 特定接收机类型或实现的效果也可以被认为是信令容量。 对于固定的目标误差概率，选择具有较高瞬时吞吐量的方案或空间速率进行传输。

公开(公告)号：US20060034386A1

公开(公告)日：2006-02-16

申请号：US11205504

申请日：2005-08-16

申请人： Shashidhar Vummintala ,  Arogyaswami Paulraj ,  Erik Lindskog ,  Balaji Sundar ,  Djordje Tujkovic

发明人： Shashidhar Vummintala ,  Arogyaswami Paulraj ,  Erik Lindskog ,  Balaji Sundar ,  Djordje Tujkovic

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.

公开(公告)号：US20060008031A1

公开(公告)日：2006-01-12

申请号：US11175621

申请日：2005-07-05

申请人： Shashidhar Vummintala ,  Arogyaswami Paulraj ,  Erik Lindskog ,  Balaji Rajan ,  Djordje Tujkovic

发明人： Shashidhar Vummintala ,  Arogyaswami Paulraj ,  Erik Lindskog ,  Balaji Rajan ,  Djordje Tujkovic

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。