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    Rank step-down for MIMO SCW design employing HARQ
    4.
    发明申请
    Rank step-down for MIMO SCW design employing HARQ 有权
    采用HARQ的MIMO SCW设计的等级降级

    公开(公告)号：US20070011550A1

    公开(公告)日：2007-01-11

    申请号：US11441742

    申请日：2006-05-25

    申请人： Avneesh Agrawal ,  Aamod Khandekar ,  Hemanth Sampath ,  Tamer Kadous

    发明人： Avneesh Agrawal ,  Aamod Khandekar ,  Hemanth Sampath ,  Tamer Kadous

    IPC分类号： H04L1/00 ,  H03M13/00 ,  G08C25/00 ,  G06F11/00 ,  G06F11/30

    CPC分类号： H04B7/0697 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/1812 ,  H04L1/1893

    摘要： Systems and methodologies are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions there from increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.

    摘要翻译： 描述的系统和方法被简化为有助于减少等级（例如，用户设备），因为其中的传输数量增加。 这种排序降低可以改善抗干扰性，并且有助于保持代码率，尽管传输传播。 此外，等级降级信息可以与CQI信息一起编码，以产生可以有助于在每次CQI传输（例如，大约每5ms）更新用户的等级的5比特CQI信号。 所描述的系统和/或方法可以用于具有混合自动请求（HARQ）协议的单个码字（SCW）无线通信环境中。

    CQI and rank prediction for list sphere decoding and ML MIMO receivers
    5.
    发明申请
    CQI and rank prediction for list sphere decoding and ML MIMO receivers 有权
    用于列表球体解码和ML MIMO接收机的CQI和秩预测

    公开(公告)号：US20070010957A1

    公开(公告)日：2007-01-11

    申请号：US11441652

    申请日：2006-05-25

    申请人： Hemanth Sampath ,  Tamer Kadous

    发明人： Hemanth Sampath ,  Tamer Kadous

    IPC分类号： G06F19/00

    CPC分类号： H04B7/12 ,  H04B1/1027 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0656 ,  H04L1/0675 ,  H04L25/03242 ,  H04L2025/03426

    摘要： Systems and methodologies are described that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO wireless communication environment. According to various aspects, optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver, such as a maximum life (ML) MMSE receiver, a non-linear receiver with a list-sphere decoder, and the like. Optimal rank selection can be performed using a maximum rank selection protocol, a channel capacity-based protocol, or any other suitable protocol that facilitates rank selection, and CQI information can be generated based in part on effective SNRs determined with regard to a selected optimal rank.

    摘要翻译： 描述了有助于将多个输入多输出（MIMO无线通信环境）中的列表球体解码设计进行集成的系统和方法，根据各个方面，最佳秩选择和最佳秩的CQI计算可以结合非 - 线性接收机，例如最大寿命（ML）MMSE接收机，具有列表球体解码器的非线性接收机等。最佳秩选择可以使用最大秩选择协议，基于信道容量的协议 或有助于等级选择的任何其它合适的协议，并且可以部分地基于针对所选择的最优等级确定的有效SNR来生成CQI信息。

    Performance based rank prediction for MIMO design
    7.
    发明申请
    Performance based rank prediction for MIMO design 有权

    公开(公告)号：US20060133521A1

    公开(公告)日：2006-06-22

    申请号：US11021791

    申请日：2004-12-22

    申请人： Hemanth Sampath ,  Tamer Kadous

    发明人： Hemanth Sampath ,  Tamer Kadous

    IPC分类号： H04K1/10

    CPC分类号： H04L1/0618 ,  H04B7/0486 ,  H04L27/2608

    摘要： The performance of a Single Code Word (SCW) design with low complexity MMSE receiver & rank prediction is similar to the Multiple Code Word (MCW) design with successive interference cancellation (SIC). A method of rank prediction comprises calculating MIMO channel matrices corresponding to layer transmissions for each tone, calculating signal-to-noise ratios (SNRs) for each tone based on the MIMO channel matrices, mapping the SNR for each tone to generate effective SNRs for each layer transmission, selecting a highest packet format (PF) with an SNR threshold less than the effective SNR for each layer transmission, maximizing an over-all spectral efficiency based on the selected highest packet formats for each layer transmission, and selecting a rank based on maximizing an over-all spectral efficiency.

    CQI and rank prediction for list sphere decoding and ML MIMO receivers
    8.
    发明授权
    CQI and rank prediction for list sphere decoding and ML MIMO receivers 有权
    用于列表球体解码和ML MIMO接收机的CQI和秩预测

    公开(公告)号：US08767885B2

    公开(公告)日：2014-07-01

    申请号：US13287912

    申请日：2011-11-02

    申请人： Hemanth Sampath ,  Tamer Kadous

    发明人： Hemanth Sampath ,  Tamer Kadous

    IPC分类号： H04L27/06

    CPC分类号： H04B7/12 ,  H04B1/1027 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0656 ,  H04L1/0675 ,  H04L25/03242 ,  H04L2025/03426

    摘要： Systems and methodologies are described that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO wireless communication environment. According to various aspects, optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver, such as a maximum life (ML) MMSE receiver, a non-linear receiver with a list-sphere decoder, and the like. Optimal rank selection can be performed using a maximum rank selection protocol, a channel capacity-based protocol, or any other suitable protocol that facilitates rank selection, and CQI information can be generated based in part on effective SNRs determined with regard to a selected optimal rank.

    摘要翻译： 描述了有助于将多个输入多输出（MIMO无线通信环境）中的列表球体解码设计进行集成的系统和方法，根据各个方面，最佳秩选择和最佳秩的CQI计算可以结合非 - 线性接收机，例如最大寿命（ML）MMSE接收机，具有列表球体解码器的非线性接收机等。最佳秩选择可以使用最大秩选择协议，基于信道容量的协议 或有助于等级选择的任何其它合适的协议，并且可以部分地基于针对所选择的最优等级确定的有效SNR来生成CQI信息。

    CQI AND RANK PREDICTION FOR LIST SPHERE DECODING AND ML MIMO RECEIVERS
    9.
    发明申请
    CQI AND RANK PREDICTION FOR LIST SPHERE DECODING AND ML MIMO RECEIVERS 有权
    用于列表空间解码和ML MIMO接收机的CQI和RANK预测

    公开(公告)号：US20120044982A1

    公开(公告)日：2012-02-23

    申请号：US13287912

    申请日：2011-11-02

    申请人： Hemanth Sampath ,  Tamer Kadous

    发明人： Hemanth Sampath ,  Tamer Kadous

    IPC分类号： H04B17/00

    CPC分类号： H04B7/12 ,  H04B1/1027 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0656 ,  H04L1/0675 ,  H04L25/03242 ,  H04L2025/03426

    摘要： Systems and methodologies are described that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO wireless communication environment. According to various aspects, optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver, such as a maximum life (ML) MMSE receiver, a non-linear receiver with a list-sphere decoder, and the like. Optimal rank selection can be performed using a maximum rank selection protocol, a channel capacity-based protocol, or any other suitable protocol that facilitates rank selection, and CQI information can be generated based in part on effective SNRs determined with regard to a selected optimal rank.

    摘要翻译： 描述了有助于将多个输入多输出（MIMO无线通信环境）中的列表球体解码设计进行集成的系统和方法，根据各个方面，最佳秩选择和最佳秩的CQI计算可以结合非 - 线性接收机，例如最大寿命（ML）MMSE接收机，具有列表球体解码器的非线性接收机等。最佳秩选择可以使用最大秩选择协议，基于信道容量的协议 或有助于等级选择的任何其它合适的协议，并且可以部分地基于针对所选择的最优等级确定的有效SNR来生成CQI信息。

    PRECODING FOR SEGMENT SENSITIVE SCHEDULING IN WIRELESS COMMUNICATION SYSTEMS
    10.
    发明申请
    PRECODING FOR SEGMENT SENSITIVE SCHEDULING IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统中分段敏感调度的预测

    公开(公告)号：US20070098099A1

    公开(公告)日：2007-05-03

    申请号：US11553870

    申请日：2006-10-27

    申请人： Dhananjay Gore ,  Hemanth Sampath ,  Jibing Wang ,  Tamer Kadous ,  Gwendolyn Barriac

    发明人： Dhananjay Gore ,  Hemanth Sampath ,  Jibing Wang ,  Tamer Kadous ,  Gwendolyn Barriac

    IPC分类号： H04K1/10 ,  H04L1/02

    CPC分类号： H04B7/0456 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0675 ,  H04L5/023 ,  H04L25/0206 ,  H04L27/2602 ,  H04L27/2608

    摘要： Techniques to enhance the performance in a wireless communication system using segments called subbands and using precoding are shown. According to one aspect, the bandwidth for transmission to an access terminal is constrained to a preferred bandwidth which is less than the bandwidth available for transmission to an access terminal and precoding information related to the subcarriers within the constrained bandwidth is provided to a transmitter. The precoding information related to the subcarriers within a constrained bandwidth provides feedback about the forward link channel properties relative to different subbands and may be fed back on a channel associated with the bandwidth.

    摘要翻译： 示出了使用称为子带并使用预编码的段来增强在无线通信系统中的性能的技术。 根据一个方面，用于传输到接入终端的带宽被限制到比可用于传输到接入终端的带宽的优选带宽，并且将与受限带宽内的子载波相关的预编码信息提供给发射机。 与受限带宽内的子载波相关的预编码信息提供关于相对于不同子带的前向链路信道属性的反馈，并且可以在与带宽相关联的信道上反馈。