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1. 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.

2. 发明授权

US07629902B2 MIMO wireless precoding system robust to power imbalance 有权
标题翻译： MIMO无线预编码系统强大的功率不平衡
公开(公告)号：US07629902B2
公开(公告)日：2009-12-08
申请号：US12155235
申请日：2008-05-30
申请人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Bruno Clerckx , Juho Lee , Zhouyue Pi
发明人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Bruno Clerckx , Juho Lee , Zhouyue Pi
IPC分类号： H03M7/00
CPC分类号： H04L27/2601 , H04L25/0204 , H04L25/0224 , H04L25/0242
摘要： The present invention relates to methods and apparatus for preventing power imbalance in a multiple input multiple output (MIMO) wireless precoding system. According to one aspect of the present invention, a codebook is constructed with a first subset of codewords that are constant modulus matrices, and a second subset of codewords that are non-constant modulus matrices. A mapping scheme is established between the first subset of codewords and the second subset of codewords. When a unit of user equipment feeds back a first codeword that is a non-constant modulus matrix, the Node-B may replace the first codewords with a second codeword that is selected from the first subset of codewords and that corresponds to the first codeword in accordance with the mapping scheme.
摘要翻译：本发明涉及用于防止多输入多输出（MIMO）无线预编码系统中的功率不平衡的方法和装置。根据本发明的一个方面，使用作为恒模矩阵的码字的第一子集以及作为非恒定模数矩阵的码字的第二子集构造码本。在码字的第一子集和码字的第二子集之间建立映射方案。当用户设备的单元反馈作为非恒定模数矩阵的第一码字时，节点B可以用从码字的第一子集中选择并且对应于第一码字的第二码字来替换第一码字，按照映射方案。

3. 发明申请

US20080232489A1 Spatial interleaver for MIMO wireless communication systems 审中-公开
标题翻译：用于MIMO无线通信系统的空间交织器
公开(公告)号：US20080232489A1
公开(公告)日：2008-09-25
申请号：US12007894
申请日：2008-01-16
申请人： Jiannan Tsai , Farooq Khan , Cornelius Van Rensburg , Zhouyue Pi , Yinong Ding
发明人： Jiannan Tsai , Farooq Khan , Cornelius Van Rensburg , Zhouyue Pi , Yinong Ding
IPC分类号： H04L27/28
CPC分类号： H04L1/0071 , H04L1/0066 , H04L2001/0092
摘要： A method for transmission is provided to include demultiplexing information to be transmitted into a plurality of stream blocks, encoding each of the stream blocks according to a corresponding coding scheme to generate a plurality of encoded streams, interleaving the plurality of encoded streams in a bit-level to generate a plurality of bit-level interleaved streams, modulating each of the bit-level interleaved streams according to a corresponding modulation scheme to generate a plurality of modulated symbol streams, interleaving the plurality of modulated symbol streams in a symbol-level to generate a plurality of symbol-level interleaved streams, precoding the plurality of symbol-level interleaved streams according to a precoding scheme to generate a plurality of precoded streams, and transmitting the plurality of precoded streams via a plurality of antennas.
摘要翻译：提供了一种用于传输的方法，包括要发送到多个流块中的解复用信息，根据相应的编码方案对每个流块进行编码，以生成多个编码流，以产生多个比特级交织流，根据相应的调制方案对每个比特级交织流进行调制以产生多个调制符号流，将符号级中的多个调制符号流进行交织以产生多个符号级交织流，根据预编码方案预编码多个符号级交织流，以产生多个预编码流，以及经由多个天线发送多个预编码流。

4. 发明申请

US20080232307A1 Method and apparatus to allocate resources for acknowledgments in communication systems 审中-公开
标题翻译：为通信系统中的确认分配资源的方法和装置
公开(公告)号：US20080232307A1
公开(公告)日：2008-09-25
申请号：US12073811
申请日：2008-03-10
申请人： Zhouyue Pi , Farooq Khan , Jiannan Tsai , Cornelius Van Rensburg , Yinong Ding
发明人： Zhouyue Pi , Farooq Khan , Jiannan Tsai , Cornelius Van Rensburg , Yinong Ding
IPC分类号： H04Q7/00
CPC分类号： H04W72/14 , H04L1/1607 , H04L1/1829 , H04W72/02 , H04W72/04 , H04W74/00
摘要： A method and apparatus for transmission between a plurality of units of user equipment and a base station in a wireless communication system. For each of the units of user equipment, a plurality of control channel elements are mapped to a plurality of downlink acknowledgement channel resources in accordance with a first mapping scheme, and the plurality of control channel elements are mapped to a plurality of uplink acknowledgement channel resources in accordance with a second mapping scheme. The first mapping scheme and the second mapping scheme may be different for different units of user equipment. Alternatively, the first mapping scheme and the second mapping scheme may change over time.
摘要翻译：一种在无线通信系统中在用户设备的多个单元和基站之间进行传输的方法和装置。对于用户设备的每个单元，根据第一映射方案将多个控制信道元素映射到多个下行链路确认信道资源，并且将多个控制信道单元映射到多个上行链路确认信道资源根据第二映射方案。对于不同的用户设备单元，第一映射方案和第二映射方案可以不同。或者，第一映射方案和第二映射方案可以随时间而改变。

5. 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。

6. 发明申请

US20070104283A1 Apparatus and method for transmitting/receiving data in a multi-antenna communication system 有权
标题翻译：在多天线通信系统中发送/接收数据的装置和方法
公开(公告)号：US20070104283A1
公开(公告)日：2007-05-10
申请号：US11589985
申请日：2006-10-31
申请人： Jin-Kyu Han , Farooq Khan , Hwan-Joon Kwon , Ju-Ho Lee , Cornelius Van Rensburg , Dong-Hee Kim
发明人： Jin-Kyu Han , Farooq Khan , Hwan-Joon Kwon , Ju-Ho Lee , Cornelius Van Rensburg , Dong-Hee Kim
IPC分类号： H04K1/10
CPC分类号： H04L27/2601 , H04B7/0408 , H04B7/0669 , H04B7/068 , H04B7/0691 , H04L1/0003 , H04L1/0009 , H04L1/0606 , H04L1/0618 , H04L1/0675
摘要： An apparatus for transmitting data in a base station of a wireless communication system that transmits data depending on channel status information fed back from terminals and uses a plurality of antennas. Based on the channel status information, a scheduler determines a terminal to which the base station will transmit data, determines antennas via which the base station will transmit data among the plurality of antennas, and determines a space pre-coding method. A multiplexer multiplexes transmission data into a plurality of data streams according to the number of the determined antennas. A modulation and coding unit performs modulation and coding on each of the data streams. A pre-coding controller outputs a matrix select signal for selecting one of a plurality of space pre-coding matrixes according to the space pre-coding method. A space pre-coder spatial-codes each of the coded streams with the matrix selected based on the matrix select signal. An OFDM modulator performs OFDM modulation on each of the spatial-coded streams. An RF unit transmits each of the OFDM-modulated streams via an associated antenna.
摘要翻译：一种在根据从终端反馈的信道状态信息发送数据并使用多个天线的无线通信系统的基站中发送数据的装置。基于信道状态信息，调度器确定基站将发送数据的终端，确定基站将在多个天线之间发送数据的天线，并确定空间预编码方法。复用器根据确定的天线的数量将传输数据复用到多个数据流中。调制和编码单元对每个数据流执行调制和编码。预编码控制器根据空间预编码方法输出用于选择多个空间预编码矩阵之一的矩阵选择信号。空间预编码器使用基于矩阵选择信号选择的矩阵对每个编码流进行空间编码。 OFDM调制器对每个空间编码流执行OFDM调制。 RF单元经由相关联的天线发送每个OFDM调制的流。

7. 发明授权

US08072943B2 Wireless communication system and methodology for communicating via multiple information streams 有权
标题翻译：用于通过多个信息流进行通信的无线通信系统和方法
公开(公告)号：US08072943B2
公开(公告)日：2011-12-06
申请号：US11554726
申请日：2006-10-31
申请人： Farooq Khan , Cornelius Van Rensburg , Jin-Kyu Han
发明人： Farooq Khan , Cornelius Van Rensburg , Jin-Kyu Han
IPC分类号： H04B7/216
CPC分类号： H04L27/2602 , H04B7/022 , H04B7/0669 , H04B7/0697 , H04H20/30 , H04H20/67 , H04L1/0061 , H04L1/0066 , H04L1/007 , H04L1/0625 , H04L1/0656 , H04L5/0023 , H04L5/0046 , H04L5/0048 , H04L5/006 , H04L2001/0098
摘要： A wireless communication system is disclosed wherein an information source communicates with a mobile station via multiple intermediary base stations located in respective cells of a broadcast zone. In one embodiment, each base station sends multiple information streams that may be received by a mobile station located in the broadcast zone. By receiving multiple information streams from multiple base stations, the mobile station may enhance reception. In one embodiment, a base station transmits an information stream that includes a base layer and another information stream including an enhanced layer. If a receiver in a mobile station receives an enhanced layer with more than a predetermined amount of quality, then the receiver uses information in the received enhanced layer to supplement information in the received base layer.
摘要翻译：公开了一种无线通信系统，其中信息源通过位于广播区域的相应小区中的多个中间基站与移动台进行通信。在一个实施例中，每个基站发送可以由位于广播区域中的移动台接收的多个信息流。通过从多个基站接收多个信息流，移动台可以增强接收。在一个实施例中，基站发送包括基本层和包括增强层的另一个信息流的信息流。如果移动站中的接收机接收到具有超过预定量的质量的增强层，则接收机使用所接收的增强层中的信息来补充所接收的基本层中的信息。

8. 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。

9. 发明申请

US20080303699A1 MIMO wireless precoding system robust to power imbalance 有权
标题翻译： MIMO无线预编码系统强大的功率不平衡
公开(公告)号：US20080303699A1
公开(公告)日：2008-12-11
申请号：US12155235
申请日：2008-05-30
申请人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Bruno Clerckx , Juho Lee , Zhouyue Pi
发明人： Jianzhong Zhang , Cornelius Van Rensburg , Farooq Khan , Bruno Clerckx , Juho Lee , Zhouyue Pi
IPC分类号： H03M7/40 , H04L27/12
CPC分类号： H04L27/2601 , H04L25/0204 , H04L25/0224 , H04L25/0242
摘要： The present invention relates to methods and apparatus for preventing power imbalance in a multiple input multiple output (MIMO) wireless precoding system. According to one aspect of the present invention, a codebook is constructed with a first subset of codewords that are constant modulus matrices, and a second subset of codewords that are non-constant modulus matrices. A mapping scheme is established between the first subset of codewords and the second subset of codewords. When a unit of user equipment feeds back a first codeword that is a non-constant modulus matrix, the Node-B may replace the first codewords with a second codeword that is selected from the first subset of codewords and that corresponds to the first codeword in accordance with the mapping scheme.
摘要翻译：本发明涉及用于防止多输入多输出（MIMO）无线预编码系统中的功率不平衡的方法和装置。根据本发明的一个方面，使用作为恒模矩阵的码字的第一子集以及作为非恒定模数矩阵的码字的第二子集构造码本。在码字的第一子集和码字的第二子集之间建立映射方案。当用户设备的单元反馈作为非恒定模数矩阵的第一码字时，节点B可以用从码字的第一子集中选择并且对应于第一码字的第二码字来替换第一码字，按照映射方案。

10. 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。

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