专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明申请

US20080304593A1 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：US20080304593A1
公开(公告)日：2008-12-11
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： H04B7/02 , G06F11/00 , H03M13/00
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。

62. 发明申请

US20080273452A1 Antenna mapping in a MIMO wireless communication system 审中-公开
标题翻译： MIMO无线通信系统中的天线映射
公开(公告)号：US20080273452A1
公开(公告)日：2008-11-06
申请号：US12007586
申请日：2008-01-11
申请人： Farooq Khan , Jiann-An Tsai , Jianzhong Zhang , Yinong Ding
发明人： Farooq Khan , Jiann-An Tsai , Jianzhong Zhang , Yinong Ding
IPC分类号： H04B7/00
CPC分类号： H04B7/0691 , H03M13/09 , H03M13/1102 , H03M13/2957 , H03M13/2963 , H03M13/6393 , H04B7/0413 , H04B7/0669 , H04B7/0684 , H04L1/0003 , H04L1/0009 , H04L1/0057 , H04L1/0066 , H04L1/0606 , H04L1/0643 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L27/2601 , H04L27/2626
摘要： A method for transmission is provided to generate a plurality of reference signals for a plurality of antenna ports, with each reference signal corresponding to an antenna port; to map the plurality of reference signals to a plurality of physical antennas in accordance with a selected antenna port mapping scheme, with each reference signal corresponding to a physical antenna, and the plurality of physical antennas being aligned sequentially with equal spacing between two immediately adjacent physical antennas; to demultiplex information to be transmitted into a plurality of stream blocks; to insert a respective cyclic redundancy check to each of the stream blocks; to encode each of the stream blocks according to a corresponding coding scheme; to modulate each of the stream blocks according to a corresponding modulation scheme; to demultiplex the stream blocks to generate a plurality of sets of symbols, with each stream block being demultiplexed into a set of symbols; to map the plurality of sets of symbols into the plurality of antenna ports in accordance with a selected symbol mapping scheme; and to transmit the plurality of sets of symbols via the corresponding antenna ports, with each set of symbols being transmitted via a subset of antenna ports, with, within each subset of antenna ports, the distance between the physical antennas of the corresponding antenna ports being larger than the average distance among the plurality of physical antennas.
摘要翻译：提供一种用于发送的方法，用于为多个天线端口生成多个参考信号，每个参考信号对应于天线端口; 根据所选择的天线端口映射方案将多个参考信号映射到多个物理天线，其中每个参考信号对应于物理天线，并且所述多个物理天线在两个紧邻的物理天线之间以相等的间隔顺序排列天线; 将要发送的信息解复用到多个流块中; 以向每个流块插入相应的循环冗余校验; 根据相应的编码方案对每个流块进行编码; 根据相应的调制方案来调制每个流块; 多路复用流块以产生多个符号集合，其中每个流块被解复用为一组符号; 根据选择的符号映射方案将多组符号映射到多个天线端口; 并且经由相应的天线端口来传输多组符号，每组符号经由天线端口的子集发送，在天线端口的每个子集内，相应天线端口的物理天线之间的距离为大于多个物理天线之间的平均距离。

63. 发明申请

US20120189080A1 MULTIPLE ANTENNAS TRANSMIT DIVERSITY SCHEME 有权
标题翻译：多天线发射多样性方案
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。

64. 发明申请

US20120189076A1 MULTIPLE ANTENNAS TRANSMIT DIVERSITY SCHEME 有权
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.

65. 发明申请

US20090268910A1 Apparatus and method for initialization of a scrambling sequence for a downlink reference signal in a wireless network 审中-公开
标题翻译：用于初始化无线网络中的下行链路参考信号的加扰序列的装置和方法
公开(公告)号：US20090268910A1
公开(公告)日：2009-10-29
申请号：US12313223
申请日：2008-11-18
申请人： Lingjia Liu , Jianzhong Zhang , Yingyang Li , Farooq Khan
发明人： Lingjia Liu , Jianzhong Zhang , Yingyang Li , Farooq Khan
IPC分类号： H04K1/04 , H04L9/00
CPC分类号： H04L25/0226 , H04J11/0079 , H04L27/2626
摘要： A method for generating a variable reference signal is provided. The method comprises initializing a scrambling sequence generator at the start of a 10 millisecond (ms) radio frame. The variable reference signal is generated for the radio frame based on different antenna ports, sequence length per antenna port and an initialization seed constructed with a specified equation. Additionally, the variable reference signal is initialized at the start of a 1 ms radio subframe based on a constructed initialization seed.
摘要翻译：提供了一种用于产生可变参考信号的方法。该方法包括在10毫秒（毫秒）无线电帧开始时初始化加扰序列发生器。基于不同的天线端口，每个天线端口的序列长度和用指定方程构造的初始化种子，为无线帧生成可变参考信号。另外，基于构造的初始化种子，在1ms无线电子帧的开始处初始化可变参考信号。

66. 发明申请

US20090028264A1 Transmit methods with delay diversity and space-frequency diversity 有权
标题翻译：具有延迟分集和空间 - 频率分集的发射方法
公开(公告)号：US20090028264A1
公开(公告)日：2009-01-29
申请号：US12155319
申请日：2008-06-02
申请人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Yinong Ding
发明人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Yinong Ding
IPC分类号： H04B7/02
CPC分类号： H04L1/0606 , H04B7/0456 , H04B7/0486 , H04B7/0671 , H04L1/0668 , H04L1/08 , H04L1/1819 , H04L5/0023 , H04L25/03898 , H04L27/2626
摘要： In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.
摘要翻译：在本发明中，提出了包含小延迟CDD码字循环，小型和大型延迟CDD的不同重新传输之间的码字循环的几种开环解决方案。此外，提出了用于SFBC + FSTD方案的开环码字循环方法，以及其对基于SFBC + FSTD的HARQ的扩展。在一种方法中，多个信息比特被编码，加扰和调制以产生多个调制符号。多个调制符号被映射到传输资源的至少一个传输层中的子载波上。然后通过使用用于循环延迟分集的矩阵和来自某个码本的一组码字来生成多个预编码符号来对调制符号进行预编码。每个一定数量的副载波循环码字。最后，预编码符号经由多个发送天线发送。

67. 发明申请

US20080298482A1 Multi-user MIMO feedback and transmission in a wireless communication system 有权
标题翻译：无线通信系统中的多用户MIMO反馈和传输
公开(公告)号：US20080298482A1
公开(公告)日：2008-12-04
申请号：US11979266
申请日：2007-10-31
申请人： Cornelius Van Rensburg , Jianzhong Zhang , Farooq Khan
发明人： Cornelius Van Rensburg , Jianzhong Zhang , Farooq Khan
IPC分类号： H04L27/28
CPC分类号： H04B7/0639 , H04B7/0478 , H04B7/065 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0029 , H04L1/06 , H04L25/03343 , H04L27/2601 , H04L2001/0093
摘要： The present invention provides a method for feedback and transmission of multi-user (MU) multiple input multiple output (MIMO) in a wireless communication system. The method includes steps of selecting subset codebook or full code book based on traffic load of a base station, and broadcasting the selected codebook to user equipments. In high traffic load, subset codebook is selected, and in low traffic load, full codebook is selected. User stations calculated a channel quality indicator of a spatial codeword vector that is included in the selected codebook. Information of the maximum channel quality indicator is sent to the base station together with a precoder of the user equipment. The base station selects user equipments based on the information of the maximum channel quality indicator and precoder, and transmits precoder signal and data signal to the user equipments. The present invention also provides a system for the base station that causes the base station to perform the above mentioned operations.
摘要翻译：本发明提供了一种在无线通信系统中反馈和传输多用户（MU）多输入多输出（MIMO）的方法。该方法包括基于基站的业务负载选择子码本或全码本，并将所选码本广播给用户设备的步骤。在高流量负载下，选择子码本，在低流量负载下，选择完整的码本。用户站计算包含在所选码本中的空间码字矢量的信道质量指示符。最大信道质量指示符的信息与用户设备的预编码器一起发送到基站。基站根据最大信道质量指示符和预编码器的信息选择用户设备，并向用户设备发送预编码信号和数据信号。本发明还提供一种使基站执行上述操作的基站的系统。

68. 发明授权

US08401107B2 Transmit methods with delay diversity and space-frequency diversity 有权
公开(公告)号：US08401107B2
公开(公告)日：2013-03-19
申请号：US13448090
申请日：2012-04-16
申请人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Yinong Ding
发明人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Yinong Ding
IPC分类号： H04B7/02 , H04B7/06 , H04B7/08 , H04L27/26 , H04L1/02
CPC分类号： H04L1/0606 , H04B7/0456 , H04B7/0486 , H04B7/0671 , H04L1/0668 , H04L1/08 , H04L1/1819 , H04L5/0023 , H04L25/03898 , H04L27/2626
摘要： In this invention, several open-loop solutions that encompass the small delay CDD codeword cycling, codeword cycling between different re-transmissions of both small and large delay CDD are proposed. In addition, an open-loop codeword cycling method for SFBC+FSTD scheme, as well as its extension to SFBC+FSTD based HARQ, are proposed. In one method, a plurality of information bits are encoded, scrambled and modulated to generate a plurality of modulation symbols. The plurality of modulation symbols are mapped onto the subcarriers in at least one transmission layer of a transmission resource. The modulation symbols are then precoded by using a matrix for cyclic delay diversity and a set of codewords from a certain codebook to generate a plurality of precoded symbols. The codewords are cycled for every a certain number of subcarriers. Finally, the precoded symbols are transmitted via a plurality of transmission antennas.

69. 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。

70. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式