公开(公告)号：US09270420B2

公开(公告)日：2016-02-23

申请号：US12561015

申请日：2009-09-16

申请人： Farooq Khan ,  Jiann-An Tsai ,  Sridhar Rajagopal ,  Bill Semper ,  Zhouyue Pi ,  Ying Li

发明人： Farooq Khan ,  Jiann-An Tsai ,  Sridhar Rajagopal ,  Bill Semper ,  Zhouyue Pi ,  Ying Li

IPC分类号： H04L7/00 ,  H03K9/00 ,  H04L1/00 ,  H04L1/18

CPC分类号： H04L1/0075 ,  H04L1/0041 ,  H04L1/1812

摘要： A Two-Dimensional (2D) code receiver and transmitter, and methods for their operation in a 2D code communication system, are provided. The method for operating the 2D code receiver includes receiving a sequence of 2D codes from a 2D code transmitter having data encoded therein, wherein the 2D codes of the sequence are received in succession, and decoding the received a sequence of 2D codes into the data.

摘要翻译： 提供二维（2D）码接收机和发射机及其在二维码通信系统中的操作方法。 用于操作2D代码接收器的方法包括从具有其中编码的数据的2D代码发送器接收2D代码序列，其中序列的2D代码被连续地接收，并且将接收的2D代码序列解码为数据。

公开(公告)号：US08335159B2

公开(公告)日：2012-12-18

申请号：US11327799

申请日：2006-01-06

申请人： Farooq Khan ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jiann-An Tsai

IPC分类号： H04L12/26

CPC分类号： H04L27/2626 ,  H04B7/0671

摘要： A method of introducing frequency selectivity into transmissions in an orthogonal frequency division multiplexing network is provided. The method includes generating a symbol. A plurality of delayed symbols are generated based on the symbol. The delayed symbols are transmitted from multiple transmit antennas. The symbol delay values may be different for different users depending upon the users' channel characteristics.

摘要翻译： 提供了一种在正交频分复用网络中将频率选择性引入到传输中的方法。 该方法包括生成符号。 基于该符号生成多个延迟符号。 延迟符号从多个发射天线发射。 根据用户的频道特性，不同用户的符号延迟值可能不同。

公开(公告)号：US08254492B2

公开(公告)日：2012-08-28

申请号：US12005341

申请日：2007-12-27

申请人： Farooq Khan ,  Jianzhong Zhang ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jianzhong Zhang ,  Jiann-An Tsai

IPC分类号： H04L27/00

CPC分类号： H04L1/1607 ,  H04L1/0606 ,  H04L1/0662 ,  H04L25/03866

摘要： A method for transmitting data via multiple antennas by 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 N by N matrices, with each N by N matrix corresponding to each pair of modulated symbols, generating a M by M code matrix comprised of the plurality of N by N matrices, orthogonally spreading the M by M code matrix to generate an output matrix, generating a plurality of row-permuted matrices by exchanging at least one pair of rows in the output matrix, and transmitting the symbols in the plurality of row-permuted matrices 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： 一种用于通过将要发送的多个调制符号的数据调制为多个天线来发送数据的方法，根据传输分集方案对所述多个符号中的每对调制符号进行编码以得到多个N乘N个矩阵 每个N×N矩阵对应于每对调制符号，产生由多个N乘N个矩阵组成的M乘M码矩阵，通过M码矩阵对M进行正交扩频以产生输出矩阵，产生多个 通过在输出矩阵中交换至少一对行，并且通过使用空时传输分集方案，空间频率传输分集方案，通过多个天线来发送多个行置换矩阵中的符号， ，或空时传输分集方案和空间频率传输分集方案的组合。

公开(公告)号：US08243693B2

公开(公告)日：2012-08-14

申请号：US11762592

申请日：2007-06-13

申请人： Farooq Khan ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jiann-An Tsai

IPC分类号： H04B7/216

CPC分类号： H04W52/32 ,  H04B7/0615 ,  H04B7/0684 ,  H04W52/322 ,  H04W52/325

摘要： A base station that communicates with subscriber stations in an OFDM wireless network. The base station transmits broadcast data and unicast data to the subscriber stations from a plurality of antennas using multiple-input, multiple-output (MIMO) techniques. The base station transmits a first broadcast pilot signal from a first antenna orthogonally to at least one of: i) a first unicast pilot signal transmitted from the first antenna; ii) a second unicast pilot signal transmitted from a second antenna; iii) a second broadcast pilot signal transmitted from the second antenna; and iv) superimposed broadcast data traffic and unicast data traffic transmitted from the first and second antennas. The base station uses orthogonal subcarriers or orthogonal time slots.

摘要翻译： 与OFDM无线网络中的用户站进行通信的基站。 基站使用多输入多输出（MIMO）技术从多个天线向用户站发送广播数据和单播数据。 基站从第一天线正交地发送第一广播导频信号至少以下之一：i）从第一天线发射的第一单播导频信号; ii）从第二天线发射的第二单播导频信号; iii）从第二天线发射的第二广播导频信号; 以及iv）从第一和第二天线发送的叠加的广播数据业务和单播数据业务。 基站使用正交子载波或正交时隙。

公开(公告)号：US20080279301A1

公开(公告)日：2008-11-13

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 ,  H04J11/00 ,  H04L1/02 ,  H04L27/00 ,  H04L27/28

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。

公开(公告)号：US20080267310A1

公开(公告)日：2008-10-30

申请号：US12005341

申请日：2007-12-27

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： H04L1/1607 ,  H04L1/0606 ,  H04L1/0662 ,  H04L25/03866

摘要： A method for transmitting data via multiple antennas by 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 N by N matrices, with each N by N matrix corresponding to each pair of modulated symbols, generating a M by M code matrix comprised of the plurality of N by N matrices, orthogonally spreading the M by M code matrix to generate an output matrix, generating a plurality of row-permuted matrices by exchanging at least one pair of rows in the output matrix, and transmitting the symbols in the plurality of row-permuted matrices 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： 一种用于通过将要发送的多个调制符号的数据调制为多个天线来发送数据的方法，根据传输分集方案对所述多个符号中的每对调制符号进行编码以得到多个N乘N个矩阵 每个N×N矩阵对应于每对调制符号，产生由多个N乘N个矩阵组成的M乘M码矩阵，通过M码矩阵对M进行正交扩频以产生输出矩阵，产生多个 通过在输出矩阵中交换至少一对行，并且通过使用空时传输分集方案，空间频率传输分集方案，通过多个天线来发送多个行置换矩阵中的符号， ，或空时传输分集方案和空间频率传输分集方案的组合。

公开(公告)号：US20070254662A1

公开(公告)日：2007-11-01

申请号：US11708306

申请日：2007-02-20

申请人： Farooq Khan ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jiann-An Tsai

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H04L5/023 ,  H04L1/1685 ,  H04L1/1825

摘要： A base station for use in wireless network that communicating with subscriber stations according to a multicarrier protocol. The base station receives uplink signals transmitted by the subscriber stations and measures the channel quality of each uplink acknowledgment signal channel. The base station transmits to a first subscriber station a control message that assigns the first subscriber station to transmit a first acknowledgment signal in a first selected uplink acknowledgment signal channel. The base station selects the first selected uplink acknowledgment signal channel based on a first measured channel quality associated with the first selected uplink acknowledgment signal channel.

摘要翻译： 一种用于根据多载波协议与用户站通信的无线网络中的基站。 基站接收用户台发送的上行链路信号，并测量每个上行链路确认信号信道的信道质量。 基站向第一用户台发送控制消息，该控制消息分配第一用户站以在第一选择的上行链路确认信号信道中发送第一确认信号。 基站基于与第一选择的上行链路确认信号信道相关联的第一测量信道质量来选择第一选择的上行链路确认信号信道。

公开(公告)号：US08582535B2

公开(公告)日：2013-11-12

申请号：US11708306

申请日：2007-02-20

申请人： Farooq Khan ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jiann-An Tsai

IPC分类号： H04W4/00

CPC分类号： H04L5/023 ,  H04L1/1685 ,  H04L1/1825

摘要： A base station for use in wireless network that communicating with subscriber stations according to a multicarrier protocol. The base station receives uplink signals transmitted by the subscriber stations and measures the channel quality of each uplink acknowledgment signal channel. The base station transmits to a first subscriber station a control message that assigns the first subscriber station to transmit a first acknowledgment signal in a first selected uplink acknowledgment signal channel. The base station selects the first selected uplink acknowledgment signal channel based on a first measured channel quality associated with the first selected uplink acknowledgment signal channel.

摘要翻译： 一种用于根据多载波协议与用户站通信的无线网络中的基站。 基站接收用户台发送的上行链路信号，并测量每个上行链路确认信号信道的信道质量。 基站向第一用户台发送控制消息，该控制消息分配第一用户站以在第一选择的上行链路确认信号信道中发送第一确认信号。 基站基于与第一选择的上行链路确认信号信道相关联的第一测量信道质量来选择第一选择的上行链路确认信号信道。

公开(公告)号：US20120189080A1

公开(公告)日：2012-07-26

申请号：US13436273

申请日：2012-03-30

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。

公开(公告)号：US20120189076A1

公开(公告)日：2012-07-26

申请号：US13436320

申请日：2012-03-30

申请人： Farooq Khan ,  Jianzhong Zhang ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jianzhong Zhang ,  Jiann-An Tsai

IPC分类号： H04B7/06 ,  H04B7/04

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.