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1. 发明授权

US08929485B2 System and method for broadcast pre-coding in a MIMO system 有权
标题翻译：用于MIMO系统中广播预编码的系统和方法
公开(公告)号：US08929485B2
公开(公告)日：2015-01-06
申请号：US11738612
申请日：2007-04-23
申请人： Farooq Khan , Jiann-An Tsai , Cornelius Van Rensberg
发明人： Farooq Khan , Jiann-An Tsai , Cornelius Van Rensberg
IPC分类号： H04K1/02 , H04L1/00 , H04L27/26 , H04L1/06
CPC分类号： H04L1/0056 , H04L1/0618 , H04L27/2626 , H04L27/2647
摘要： The present disclosure relates generally to a system and method for broadcast pre-coding in a multiple input multiple output (MIMO) system. In one example, the method includes modulating a broadcast signal to create a stream of modulated symbols. Pre-coding is performed on each of the modulated symbols to break each modulated symbol into at least two pre-coded portions, and the two pre-coded portions of each modulated symbol are transmitted via at least two antennas.
摘要翻译：本公开一般涉及在多输入多输出（MIMO）系统中广播预编码的系统和方法。在一个示例中，该方法包括调制广播信号以创建调制符号流。对每个调制符号执行预编码，以将每个调制符号分解为至少两个预编码部分，并且经由至少两个天线发送每个调制符号的两个预编码部分。

2. 发明授权

US08879532B2 Techniques for pilot stream remapping in OFDM wireless communication system 有权
标题翻译： OFDM无线通信系统中导频流重映射的技术
公开(公告)号：US08879532B2
公开(公告)日：2014-11-04
申请号：US12722425
申请日：2010-03-11
申请人： Jiann-An Tsai , Zhouyue Pi , Kaushik Josiam , Farooq Khan , Sudhir Ramakrishna
发明人： Jiann-An Tsai , Zhouyue Pi , Kaushik Josiam , Farooq Khan , Sudhir Ramakrishna
IPC分类号： H04L1/00 , H04L25/02 , H04L5/00
CPC分类号： H04L5/0051 , H04L1/1819 , H04L5/0007 , H04L5/005 , H04L5/0073 , H04L25/0224
摘要： A method and base station apparatus for transmitting pilot data in a wireless communication system, and a method and mobile station apparatus for receiving pilot data in a wireless communication system are provided. The method for transmitting pilot data in a wireless communication system includes determining a pilot pattern in at least one resource block for each of one or more pilot streams, and transmitting the one or more pilot streams based on the determined respective pilot pattern in the at least one resource block, wherein the at least one resource block comprises a plurality of subcarriers and a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols.
摘要翻译：一种用于在无线通信系统中发送导频数据的方法和基站装置，以及用于在无线通信系统中接收导频数据的方法和移动站装置。用于在无线通信系统中发送导频数据的方法包括：针对一个或多个导频流中的每一个确定至少一个资源块中的导频模式，以及至少基于所确定的相应导频模式来发送所述一个或多个导频流一个资源块，其中所述至少一个资源块包括多个子载波和多个正交频分复用（OFDM）符号。

3. 发明授权

US08634432B2 System and method for subcarrier allocation in a multicarrier wireless network 有权
标题翻译：多载波无线网络中子载波分配的系统和方法
公开(公告)号：US08634432B2
公开(公告)日：2014-01-21
申请号：US11389708
申请日：2006-03-27
申请人： Farooq Khan , Cornelius van Rensburg , Jiann-An Tsai
发明人： Farooq Khan , Cornelius van Rensburg , Jiann-An Tsai
IPC分类号： H04B1/02
CPC分类号： H04L5/023 , H04B7/0697 , H04W72/0453
摘要： A base station for use in an OFDM network capable of communicating with a plurality of subscriber stations in a coverage area of the OFDM network. The base station transmits to a first subscriber station in a first subband of subcarriers from a first transmit antenna and transmits to the first subscriber station in a second subband of subcarriers from a second transmit antenna. The first and second subbands comprise different subcarriers. The base station also transmits to a second subscriber station in the first subband of subcarriers from the second transmit antenna and transmits to the second subscriber station in the second subband of subcarriers from the first transmit antenna.
摘要翻译：一种在能够与OFDM网络的覆盖区域中的多个用户站进行通信的OFDM网络中使用的基站。基站从第一发射天线发送到子载波的第一子带中的第一用户台，并从第二发射天线以第二子带的子载波的形式发送给第一用户台。第一和第二子带包括不同的子载波。基站还从第二发射天线向第二用户台发送子载波的第一子带，并从第一发射天线向第二用户台发送子载波的第二子带。

4. 发明授权

US08274937B2 Method and apparatus for beamforming in OFDM wireless system 有权
标题翻译： OFDM无线系统中波束成形的方法和装置
公开(公告)号：US08274937B2
公开(公告)日：2012-09-25
申请号：US12455689
申请日：2009-06-05
申请人： Jiann-An Tsai
发明人： Jiann-An Tsai
IPC分类号： H04W4/00 , H04B7/02
CPC分类号： H04B7/0417 , H04B7/0408 , H04B7/0452 , H04B7/0469 , H04B7/0632 , H04B7/0634 , H04B7/0639
摘要： Systems and methods are disclosed for use in a wireless network that promotes simultaneous beamforming. These systems and methods include determining the Channel Quality Indicator (CQI) and Best Beam Index (BBI) for communications between a plurality of mobile stations and a base station, ranking the plurality of mobile stations in a list according to the determined CQI and BBI, and selecting a subset of the plurality of mobile stations for simultaneous beamformed communications. These systems and methods may also include verifying that the selected subset of the plurality of mobile stations does not have a conflict and initiating beamformed communications. Certain embodiments of the BBI may be determined based on a predetermined codebook, which is a function of an antenna configuration, such as a uniform linear array (ULA) and a uniform circular array (UCA).
摘要翻译：公开了用于促进同时波束成形的无线网络中的系统和方法。这些系统和方法包括确定用于多个移动站和基站之间的通信的信道质量指示符（CQI）和最佳波束索引（BBI），根据确定的CQI和BBI对列表中的多个移动站进行排序，以及选择所述多个移动站的子集用于同时波束形成的通信。这些系统和方法还可以包括验证所选择的多个移动站的子集不具有冲突并发起波束形成的通信。可以基于作为天线配置的函数的预定码本（诸如均匀线性阵列（ULA）和均匀圆阵列（UCA））来确定BBI的某些实施例。

5. 发明授权

US08254487B2 Method and apparatus of codebook-based single-user closed-loop transmit beamforming (SU-CLTB) for OFDM wireless systems 有权
标题翻译：用于OFDM无线系统的基于码本的单用户闭环发射波束成形（SU-CLTB）的方法和装置
公开(公告)号：US08254487B2
公开(公告)日：2012-08-28
申请号：US12149108
申请日：2008-04-25
申请人： Jiann-An Tsai , Cornelius Van Rensburg , Jianzhong Zhang
发明人： Jiann-An Tsai , Cornelius Van Rensburg , Jianzhong Zhang
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B1/59 , H04B7/0417 , H04B7/0469 , H04B7/0617 , H04B7/0632 , H04B7/0641 , H04B7/0684 , H04B7/10 , H04L27/2601
摘要： A method includes broadcasting, at a transmitter, messages comprising antenna configuration, antenna spacing and a number of antenna of the transmitter and reference signals; generating, at a receiver, a codebook comprising a plurality of antenna beams based on the broadcasted messages; receiving, at the receiver, the broadcasted reference signals; selecting, at the receiver, an antenna beam among the plurality of antenna beams within the codebook in dependence upon a predetermined performance criteria of a data communication system and in dependence upon the broadcasted reference signals; feedbacking to the transmitter, at the receiver, information comprising the antenna beam selected by the receiver; optimizing, at the transmitter, a beamforming process by utilizing the feedback information from the receiver; transmitting, at the transmitter, data signals by utilizing the optimized beamforming process; and receiving and processing, at the receiver, the data signals in dependence upon the selected antenna beams within the codebook.
摘要翻译：一种方法包括在发射机处广播包括天线配置，天线间隔和发射机和参考信号的天线数量的消息; 在接收机处，基于广播的消息，生成包括多个天线波束的码本; 在接收机处接收广播的参考信号; 根据数据通信系统的预定性能标准，并根据广播的参考信号，在接收机中选择码本内的多个天线波束之间的天线波束; 在接收机处反馈给发射机，包括由接收机选择的天线波束的信息; 在发射机处利用来自接收机的反馈信息来优化波束成形过程; 通过利用优化的波束形成过程在发射机发射数据信号; 并且在接收机处根据码本内的所选择的天线波束接收和处理数据信号。

6. 发明授权

US08243774B2 System and method for information scrambling in a wireless communication system 有权
标题翻译：用于无线通信系统中信息加扰的系统和方法
公开(公告)号：US08243774B2
公开(公告)日：2012-08-14
申请号：US11865026
申请日：2007-09-30
申请人： Farooq Khan , Jiann-An Tsai
发明人： Farooq Khan , Jiann-An Tsai
IPC分类号： H04B1/00
CPC分类号： H04L25/03866 , H04L5/0016 , H04L27/34
摘要： The present disclosure relates generally to a system and method for scrambling in a wireless communication system. In one example, the method includes receiving a bit group representing at least a portion of a signal, where a total number of bits in the bit group is defined by a modulation scheme applied to the signal. A bit of the bit group is identified that indicates a sign of an imaginary part of the signal and another bit of the bit group is identified that indicates a sign of a real part of the signal. Only the two bits indicating the signs of the imaginary and real parts of the signal are scrambled using a random sequence prior to wirelessly transmitting the bit group.
摘要翻译：本公开一般涉及用于在无线通信系统中加扰的系统和方法。在一个示例中，该方法包括接收表示信号的至少一部分的位组，其中通过应用于该信号的调制方案定义位组中的位的总数。识别位组的位，其指示信号的虚部的符号，并且识别指示信号的实部的符号的位组的另一位。在无线发送位组之前，仅使用指示信号的虚部和实部的符号的两个比特来使用随机序列进行加扰。

7. 发明授权

US08218563B2 Method and system for providing adaptive modulation and coding in a multi-carrier wireless network 有权
标题翻译：用于在多载波无线网络中提供自适应调制和编码的方法和系统
公开(公告)号：US08218563B2
公开(公告)日：2012-07-10
申请号：US11504452
申请日：2006-08-15
申请人： Farooq Khan , Jiann-An Tsai , Cornelius van Rensburg
发明人： Farooq Khan , Jiann-An Tsai , Cornelius van Rensburg
IPC分类号： H04J3/16
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L27/2608 , H04W28/18
摘要： A method of providing adaptive modulation and coding in a multi-carrier wireless network that includes a plurality of subscriber stations is provided. The method includes, for each of the subscriber stations, selecting a type of modulation and a coding rate based on a signal-to-interference-plus-noise ratio (SINR) variance.
摘要翻译：提供了一种在包括多个用户站的多载波无线网络中提供自适应调制和编码的方法。该方法包括对于每个用户站，基于信号与干扰加噪声比（SINR）方差来选择调制类型和编码率。

8. 发明授权

US08155232B2 Multiple antennas transmit diversity scheme 有权
标题翻译：多天线发射分集方案
公开(公告)号：US08155232B2
公开(公告)日：2012-04-10
申请号：US11896114
申请日：2007-08-29
申请人： Farooq Khan , Jianzhong Zhang , Jiann-an Tsai
发明人： Farooq Khan , Jianzhong Zhang , Jiann-an Tsai
IPC分类号： H04B7/02
CPC分类号： H04L1/04 , H04B7/0669 , H04B7/068 , H04J13/00 , H04L1/0606 , H04L1/0625 , H04L1/0668 , H04L1/08 , H04L27/2608
摘要： A method from transmitting data via multiple antennas. The method contemplates modulating data to be transmitted into a plurality of modulated symbols, encoding each pair of modulated symbols from among said plurality of symbols in accordance with a transmission diversity scheme to result in a plurality of 2 by 2 matrices, with each 2 by 2 matrix corresponding to each pair of modulated symbols, orthogonally spreading the plurality of 2 by 2 matrices to generate an output matrix, and transmitting the symbols in the output matrix via a plurality of antennas by using either a space time transmission diversity scheme, a space frequency transmission diversity scheme, or a combination of a space time transmission diversity scheme and a space frequency transmission diversity scheme.
摘要翻译：一种通过多个天线发送数据的方法。该方法考虑将要发送的数据调制为多个调制符号，根据传输分集方案从所述多个符号中对每对调制符号进行编码，以产生多个2乘2矩阵，每2乘2 对应于每对调制符号的矩阵，正交扩频多个2×2矩阵以产生输出矩阵，并且通过使用空时传输分集方案，空间频率，经由多个天线，在输出矩阵中发送符号传输分集方案，或时空传输分集方案和空间频率传输分集方案的组合。

9. 发明授权

US07991063B2 Transmission symbols mapping for antenna diversity 失效
标题翻译：用于天线分集的传输符号映射
公开(公告)号：US07991063B2
公开(公告)日：2011-08-02
申请号：US12153072
申请日：2008-05-13
申请人： Farooq Khan , Jiann-An Tsai , Jianzhong Zhang
发明人： Farooq Khan , Jiann-An Tsai , Jianzhong Zhang
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04B7/12
摘要： Methods and apparatus for transmitting data via multiple antennas by using antenna diversity. A transmission diversity scheme is established such that two transmission matrices that are in accordance with the space frequency block code combined with Frequency switched transmit diversity (SFBC+FSTD) scheme, are alternatively applied in either the frequency domain, or the time domain, or both of the frequency domain or then time domain. The symbols in the transmission matrices may be transmitted either as one burst in a primary broadcast channel (PBCH), or as discrete bursts in the primary broadcast channel.
摘要翻译：使用天线分集通过多个天线发送数据的方法和装置。建立传输分集方案，使得根据与频率交换发射分集（SFBC + FSTD）方案组合的空间频率块码的两个传输矩阵交替地应用于频域或时域或两者中的频域或时域。传输矩阵中的符号可以作为主广播信道（PBCH）中的一个突发或作为主广播信道中的离散突发发送。

10. 发明申请

US20080039030A1 Apparatus and Method For Transmit Diversity And Beamforming In A Wireless Network 有权
标题翻译：无线网络中发射分集和波束成形的装置和方法
公开(公告)号：US20080039030A1
公开(公告)日：2008-02-14
申请号：US11779052
申请日：2007-07-17
申请人： Farooq Khan , Cornelius Van Rensburg , Jiann-An Tsai
发明人： Farooq Khan , Cornelius Van Rensburg , Jiann-An Tsai
IPC分类号： H04B1/02
CPC分类号： H04B7/0689 , H04B7/0617 , H04B7/0671
摘要： A base station for use in a wireless network communicating with a plurality of subscriber stations. The base station transmits in a downlink channel to a first subscriber station using a plurality of transmit antennas. The base station transmits to the first subscriber station using either a transmit diversity scheme or a beamforming scheme according to the amount of correlation between the transmit antennas observed at the first subscriber station. The base station also transmits to the first subscriber station using a cyclic delay diversity scheme having either zero delay or non-zero delay according to the amount of antenna/channel correlation observed at the first subscriber station.
摘要翻译：一种用于与多个用户台通信的无线网络中的基站。基站使用多个发射天线在下行链路信道中向第一用户台发送。根据在第一用户台观测到的发射天线之间的相关量，基站使用发射分集方案或波束成形方案向第一用户台发送。根据在第一用户台观测到的天线/信道相关量，基站还使用具有零延迟或非零延迟的循环延迟分集方案向第一用户台发送。

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