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    MIMO transmission with layer permutation in a wireless communication system
    172.
    发明授权
    MIMO transmission with layer permutation in a wireless communication system 有权
    在无线通信系统中具有层置换的MIMO传输

    公开(公告)号：US08588319B2

    公开(公告)日：2013-11-19

    申请号：US12444499

    申请日：2007-11-06

    Applicant: Durga Prasad Malladi ,  Byoung-Hoon Kim ,  Taesang Yoo

    Inventor： Durga Prasad Malladi ,  Byoung-Hoon Kim ,  Taesang Yoo

    IPC: H04B7/02 ,  H04L1/02

    CPC classification number: H04B7/065 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0628 ,  H04B7/0641 ,  H04L1/0026 ,  H04L1/0625 ,  H04L1/0656 ,  H04L1/1812

    Abstract: Techniques for supporting MIMO transmission with layer permutation are described. In one aspect, multiple codewords may be generated for transmission from multiple antennas (e.g., virtual antennas), with the number of codewords being less than the number of antennas. Each codeword may be mapped across the multiple antennas. Two codewords may be generated. For rank 3, the first codeword may be mapped to one layer (or one antenna on each subcarrier), and the second codeword may be mapped to two layers (or two antennas on each subcarrier). For rank 4, each codeword may be mapped to two layers. In another aspect, a base CQI indicative of an average signal quality may be determined. A delta CQI indicative of improvement over the average signal quality may also be determined. In yet another aspect, selection may be performed with different penalty factors for different ranks or number of codewords.

    Abstract translation: 描述了支持具有层置换的MIMO传输的技术。 在一个方面，可以生成多个码字用于从多个天线（例如，虚拟天线）的发射，其中码字的数量小于天线的数量。 每个码字可以跨多个天线映射。 可以生成两个码字。 对于秩3，第一码字可以映射到一个层（或每个子载波上的一个天线），并且第二码字可以映射到两个层（或每个子载波上的两个天线）。 对于等级4，每个码字可以映射到两个层。 另一方面，可以确定表示平均信号质量的基本CQI。 也可以确定表示对平均信号质量的改善的增量CQI。 在另一方面，可以针对不同等级或码字数量对不同的惩罚因素进行选择。

    Multi-antenna communication apparatus and method of multi-antenna communication
    173.
    发明授权
    Multi-antenna communication apparatus and method of multi-antenna communication 有权
    多天线通信装置及多天线通信方法

    公开(公告)号：US08462870B2

    公开(公告)日：2013-06-11

    申请号：US13241895

    申请日：2011-09-23

    Applicant: Jianming Wu

    Inventor： Jianming Wu

    IPC: H04B7/02

    CPC classification number: H04B7/0413 ,  H04B7/0857 ,  H04L1/005 ,  H04L1/0051 ,  H04L1/0066 ,  H04L1/06 ,  H04L1/0656

    Abstract: A transmitter includes a mapping unit that maps first information data to a first layer and maps second information data a part of which is duplicative of and a part of which is different from the first information data to a second layer, a coding unit that generates transmission data by performing error detection coding and error correction coding on the first and second information data, and a transmitting unit that transmits the transmission data from the antennas corresponding to the respective layers. A receiver includes a reception processing unit that separates received data into layer data, a decoding unit that generates a soft-decision value for each of the layers, a combining unit that combines soft-decision values corresponding to information data mapped to the plurality of layers in duplicate, and a deciding unit that performs hard-decision on the layer data using a soft-decision value.

    Abstract translation: 发射机包括映射单元，其将第一信息数据映射到第一层，并将其一部分的第二信息数据与第一信息数据重复并且其一部分不同于第二层;生成传输的编码单元 数据通过对第一和第二信息数据执行错误检测编码和纠错编码，以及发送单元，其从与各个层对应的天线发送发送数据。 接收机包括将接收到的数据分离为层数据的接收处理单元，生成每个层的软判决值的解码单元，组合对应于映射到多个层的信息数据的软判决值 以及决定单元，其使用软判定值对层数据进行硬判定。

    Method and system for an adaptive VBLAST receiver for wireless multiple input multiple outout (MIMO) detection
    175.
    发明授权
    Method and system for an adaptive VBLAST receiver for wireless multiple input multiple outout (MIMO) detection 有权
    用于无线多输入多输出（MIMO）检测的自适应VBLAST接收机的方法和系统

    公开(公告)号：US08300747B2

    公开(公告)日：2012-10-30

    申请号：US12763670

    申请日：2010-04-20

    Applicant: Ling Su

    Inventor： Ling Su

    IPC: H04B7/10

    CPC classification number: H04L1/0656 ,  H04L1/0631 ,  H04L25/03305 ,  H04L25/03318 ,  H04L2025/0342 ,  H04L2025/03426

    Abstract: Various aspects of a system for an adaptive VBLAST receiver for wireless MIMO detection may comprise utilizing log likelihood ratios (LLR) to selectively cancel interference in a received signal when information contained in one or more layers is encoded. Following the selective cancellation of interference, further computations may be performed on the residual received signal. Various aspects of the invention may comprise a linear detector with improved performance in comparison to some conventional VBLAST receivers. Performance may be measured by, for example, a packet error rate (PER) for a given signal to noise ratio (SNR) associated with the received signal.

    Abstract translation: 用于无线MIMO检测的自适应VBLAST接收机的系统的各个方面可以包括当对包含在一个或多个层中的信息进行编码时利用对数似然比（LLR）来选择性地消除接收信号中的干扰。 在干扰的选择性消除之后，可以对剩余的接收信号执行进一步的计算。 与一些常规的VBLAST接收机相比，本发明的各个方面可以包括具有改进的性能的线性检测器。 性能可以通过例如与接收信号相关联的给定信噪比（SNR）的分组错误率（PER）来测量。

    RETRANSMISSION METHOD, TRANSMITTER, AND COMMUNICATION SYSTEM
    176.
    发明申请
    RETRANSMISSION METHOD, TRANSMITTER, AND COMMUNICATION SYSTEM 审中-公开
    恢复方法，发射机和通信系统

    公开(公告)号：US20120263250A1

    公开(公告)日：2012-10-18

    申请号：US13532576

    申请日：2012-06-25

    Applicant: Choo Eng YAP ,  Lee Ying Loh

    Inventor： Choo Eng YAP ,  Lee Ying Loh

    IPC: H04L27/28

    CPC classification number: H04L1/1819 ,  H03M13/09 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/6306 ,  H04B7/0413 ,  H04L1/0001 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1887

    Abstract: An automatic retransmission request control system in an OFDM-MIMO communication system includes a retransmission mode selection part which selects a retransmission mode from among (a) a mode in which to transmit the data, which are to be retransmitted, via the same antenna as in the previous transmission, while transmitting, at the same time, new data by use of an antenna via which no data retransmission is requested; (b) a mode in which to transmit the data, which are to be retransmitted, via an antenna via which no retransmission is requested, while transmitting new data via another antenna at the same time; (c) a mode in which to use STBC to retransmit the data via an antenna via which no retransmission is requested; and (d) a mode in which to use STBC to retransmit the data via all the available antennas.

    Abstract translation: OFDM-MIMO通信系统中的自动重发请求控制系统包括：重发模式选择部，其从（a）通过与重发相同的天线发送要重发的数据的模式（a）中选择重传模式 先前的传输，同时通过使用不需要数据重传的天线同时发送新的数据; （b）在经由另一天线同时发送新数据的同时，经由不经过重发的天线发送要重传的数据的模式; （c）使用STBC通过经由其不请求重传的天线来重传数据的模式; 和（d）使用STBC通过所有可用天线重发数据的模式。

    MODULATOR AND MODULATION METHOD
    177.
    发明申请
    MODULATOR AND MODULATION METHOD 有权
    调制器和调制方法

    公开(公告)号：US20120254701A1

    公开(公告)日：2012-10-04

    申请号：US13493721

    申请日：2012-06-11

    Applicant: Yutaka MURAKAMI ,  Shutai OKAMURA ,  Kiyotaka KOBAYASHI ,  Masayuki ORIHASHI

    Inventor： Yutaka MURAKAMI ,  Shutai OKAMURA ,  Kiyotaka KOBAYASHI ,  Masayuki ORIHASHI

    IPC: H03M13/05 ,  G06F11/10

    CPC classification number: H04L1/0041 ,  H03M13/13 ,  H03M13/255 ,  H03M13/2721 ,  H03M13/2909 ,  H04L1/0003 ,  H04L1/0057 ,  H04L1/0071 ,  H04L1/0656 ,  H04L5/0023

    Abstract: A transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased. An encoding part subjects transport data to a block encoding process to form block encoded data. A modulating part modulates the block encoded data to form data symbols; and an arranging (interleaving) part arranges (interleaves) the block encoded data in such a manner that the intra-block encoded data of the encoded blocks, which include their respective single different data symbol, get together, and then supplies the arranged (interleaved) block encoded data to the modulating part. In this way, there can be provided a transmitter apparatus wherein a relatively simple structure is used to suppress burst errors without changing the block sizes of encoded blocks even when the number of modulation multi-values is increased.

    Abstract translation: 一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。 编码部分将传输数据转移到块编码处理以形成块编码数据。 调制部分调制块编码数据以形成数据符号; 并且排列（交织）部分以这样的方式布置（交织）块编码数据，使得包括它们各自的单个不同数据符号的编码块的块内编码数据在一起，然后提供所安排的（交织的 ）块编码数据到调制部分。 以这种方式，可以提供一种发射机装置，即使当调制多值的数量增加时，使用相对简单的结构来抑制突发错误，而不改变编码块的块大小。

    RETRANSMISSION METHOD AND TRANSMITTER
    178.
    发明申请
    RETRANSMISSION METHOD AND TRANSMITTER 审中-公开
    重新设计方法和发射机

    公开(公告)号：US20120230257A1

    公开(公告)日：2012-09-13

    申请号：US13478996

    申请日：2012-05-23

    Applicant: Choo Eng YAP ,  Lee Ying LOH

    Inventor： Choo Eng YAP ,  Lee Ying LOH

    IPC: H04W4/00

    CPC classification number: H04L1/1819 ,  H03M13/09 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/6306 ,  H04B7/0413 ,  H04L1/0001 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1887

    Abstract: An automatic retransmission request control system in an OFDM-MIMO communication system includes a retransmission mode selection part which selects a retransmission mode from among (a) a mode in which to transmit the data, which are to be retransmitted, via the same antenna as in the previous transmission, while transmitting, at the same time, new data by use of an antenna via which no data retransmission is requested; (b) a mode in which to transmit the data, which are to be retransmitted, via an antenna via which no retransmission is requested, while transmitting new data via another antenna at the same time; (c) a mode in which to use STBC to retransmit the data via an antenna via which no retransmission is requested; and (d) a mode in which to use STBC to retransmit the data via all the available antennas.

    Abstract translation: OFDM-MIMO通信系统中的自动重发请求控制系统包括：重发模式选择部，其从（a）通过与重发相同的天线发送要重发的数据的模式（a）中选择重发模式 先前的传输，同时通过使用不需要数据重传的天线同时发送新的数据; （b）在经由另一天线同时发送新数据的同时，经由不经过重发的天线发送要重传的数据的模式; （c）使用STBC通过经由其不请求重传的天线来重传数据的模式; 和（d）使用STBC通过所有可用天线重发数据的模式。

    Optimal power allocation method for an LSSTC wireless transmission system
    179.
    发明授权
    Optimal power allocation method for an LSSTC wireless transmission system 有权
    LSSTC无线传输系统的最优功率分配方法

    公开(公告)号：US08219138B2

    公开(公告)日：2012-07-10

    申请号：US12805219

    申请日：2010-07-19

    Applicant: Salam Adel Zummo ,  Ahmad Suhail Salim ,  Samir Nasser Al-Ghadban

    Inventor： Salam Adel Zummo ,  Ahmad Suhail Salim ,  Samir Nasser Al-Ghadban

    IPC: H04B7/00

    CPC classification number: H04B7/0669 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0697 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/0681 ,  H04W52/42

    Abstract: The optimal power allocation method for an LSSTC wireless transmission system utilizes Layered Steered Space-Time Codes (LSSTC), a recently proposed multiple-input multiple-output (MIMO) system that combines the benefits of vertical Bell Labs space-time (V-BLAST) scheme, space-time block codes (STBC), and beamforming. A new downlink scheme employs LSSTC with optimal power allocation based on the assumption that the user feeds the base station (BS) with the average signal-to-noise ratio (SNR) per V-BLAST layer through the uplink feedback channel. Such a system enhances the error performance by assigning power to the layers in an optimum manner.

    Abstract translation: LSSTC无线传输系统的最优功率分配方法采用分层转向空时码（LSSTC），即最近提出的多输入多输出（MIMO）系统，其结合了垂直贝尔实验室时空（V-BLAST）的优点 ）方案，空时块码（STBC）和波束成形。 基于用户通过上行链路反馈信道向每个V-BLAST层馈送平均信噪比（SNR）的基站的假设，新的下行链路方案采用具有最佳功率分配的LSSTC。 这种系统通过以最佳方式向层分配功率来增强错误性能。

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