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    Cqi and rank prediction for list sphere decoding and ml mimo receivers
    22.
    发明专利
    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：JP2012130015A

    公开(公告)日：2012-07-05

    申请号：JP2012001408

    申请日：2012-01-06

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： SAMPATH HEMANTH ,  KADOUS TAMER

    IPC: H04J99/00 ,  H04B7/04

    CPC classification number: H04B7/0434 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0675 ,  H04L5/0053 ,  H04L25/03242 ,  H04L27/2626 ,  H04L27/2647 ,  H04L2025/03426

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO) wireless communication environment.SOLUTION: Optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver such as a maximum likelihood (ML) MMSE receiver and a non-linear receiver with a list-sphere decoder and the like. The 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.

    Abstract translation: 要解决的问题：提供有助于将列表球体解码设计集成在多输入多输出（MIMO）无线通信环境中的系统和方法。 解决方案：可以结合诸如最大似然（ML）MMSE接收机和具有列表球解码器的非线性接收机之类的非线性接收机来执行用于最优秩的最优秩选择和CQI计算，并且 喜欢。 可以使用最大秩选择协议，基于信道容量的协议或促进等级选择的任何其他合适协议来执行最优等级选择，并且可以部分地基于针对所选择的最优值确定的有效SNR来生成CQI信息。 秩。 版权所有（C）2012，JPO＆INPIT

    Rank step-down for mimo single code word (scw) design employing harq
    23.
    发明专利
    Rank step-down for mimo single code word (scw) design employing harq 有权
    用于MIMO单码规（SCW）的RANK降级使用HARQ

    公开(公告)号：JP2012054960A

    公开(公告)日：2012-03-15

    申请号：JP2011219588

    申请日：2011-10-03

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： AGRAWAL AVNEESH ,  KHANDEKAR AAMOD ,  KADOUS TAMER ,  SAMPATH HEMANTH

    IPC: H04J99/00 ,  H04B7/04 ,  H04W16/28 ,  H04W24/10

    CPC classification number: H04B7/0697 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/1812

    Abstract: PROBLEM TO BE SOLVED: To provide a rank step-down method for MIMO SCW (single code word) design employing HARQ.SOLUTION: Systems and methodologies are described that reduce rank (e.g., of a user device) as a number of transmissions therefrom increases. Such rank step-down can improve interference resistance and maintain 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 update 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.

    Abstract translation: 要解决的问题：提供使用HARQ的MIMO SCW（单码字）设计的等级降压方法。 描述的系统和方法被描述为随着其数量的增加而减少等级（例如，用户设备）。 这种排序降低可以改善干扰电阻并且尽管传输传播仍然维持码率。 此外，等级降级信息可以与CQI信息一起编码，以产生可以在每次CQI传输（例如，大约每5ms）更新用户等级的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。 版权所有（C）2012，JPO＆INPIT

    Minimizing feedback by sending quality indicator for non-restrictive reuse set and vectored quality indicator for other reuse sets
    25.
    发明专利
    Minimizing feedback by sending quality indicator for non-restrictive reuse set and vectored quality indicator for other reuse sets 有权
    通过发送质量指标最小化反馈非限制性重用设置和其他重用设置的质量指标

    公开(公告)号：JP2011061800A

    公开(公告)日：2011-03-24

    申请号：JP2010204825

    申请日：2010-09-13

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： SAMPATH HEMANTH ,  JI TINGFANG

    IPC: H04W24/10 ,  H04J99/00 ,  H04W16/28 ,  H04W72/08

    CPC classification number: H04W72/085 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/0222 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

    Abstract: PROBLEM TO BE SOLVED: To minimize feedback by sending a quality indicator for a non-restrictive reuse set and a vectored quality indicator for other reuse sets. SOLUTION: (1) For multiple code word MIMO users, a MIMO VCQI connection layer message enables a base station to reconstruct the MIMO-CQI for all reuse sets on a packet-by-packet basis. This enables dynamic scheduling (restrictive reuse) gains to be obtained. (2) For single code word users, dynamic restrictive reuse can be obtained by changing a CQI reporting format, and also sending a MIMO-VCQI connection layer message. (3) For single code word design, quasi-static scheduling gains can be obtained by sending a MIMO-VCQI connection layer message. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：通过发送非限制性重用集合的质量指示符和其他重用集合的向量质量指示符来最小化反馈。 （1）对于多个码字MIMO用户，MIMO VCQI连接层消息使基站能够在逐个分组的基础上为所有重用集合重构MIMO-CQI。 这使得能够获得动态调度（限制性重用）增益。 （2）对于单码字用户，可以通过改变CQI报告格式以及发送MIMO-VCQI连接层消息来获得动态限制重用。 （3）对于单码字设计，可以通过发送MIMO-VCQI连接层消息来获得准静态调度增益。 版权所有（C）2011，JPO＆INPIT

    METHOD AND APPARATUS FOR OPTIMUM SELECTION OF MIMO AND INTERFERENCE CANCELLATION
    26.
    发明公开
    METHOD AND APPARATUS FOR OPTIMUM SELECTION OF MIMO AND INTERFERENCE CANCELLATION 有权
    VERFAHREN UND VORRICHTUNG ZUR OPTIMALEN SELEKTION VON MIMO UND INTERERERZAUFHEBUNG

    公开(公告)号：EP1904859A4

    公开(公告)日：2012-08-01

    申请号：EP06785028

    申请日：2006-06-16

    Applicant: QUALCOMM INC

    Inventor： SAMPATH HEMANTH

    IPC: H04B1/00 ,  H04B7/06 ,  H04B7/08 ,  H04B15/00 ,  H04L1/00 ,  H04L25/02

    CPC classification number: H04B7/0632 ,  H04B7/063 ,  H04B7/0817 ,  H04L1/0026 ,  H04L1/06 ,  H04L25/0206

    Abstract: Systems and methodologies are described that facilitate performing interference nulling and rank prediction in an access terminal. Multiple receiver demodulator types may be implemented at the access terminal, and an interference covariance matrix may be estimated thereat. SNRs may be calculated for the various receiver demodulator types, and an optimum rank and associated CQI information may be identified and generated, respectively, which information may then be transmitted to an access point. At least one of the receiver demodulator types may perform an interference nulling protocol. For example, the receiver demodulator types may comprise at least one minimum mean-squared error interference-nulling (MMSE-IN) demodulator, along with and one or more of a maximal ratio combining (MRC) demodulator and a minimum mean-squared error (MMSE) demodulator.

    Abstract translation: 描述了有助于在接入终端中执行干扰归零和秩预测的系统和方法。 可以在接入终端处实现多个接收机解调器类型，并且可以在其上估计干扰协方差矩阵。 可以针对各种接收机解调器类型计算SNR，并且可以分别识别和生成最佳等级和相关联的CQI信息，然后将哪些信息发送到接入点。 至少一个接收机解调器类型可以执行干扰归零协议。 例如，接收机解调器类型可以包括至少一个最小均方误差干扰归零（MMSE-IN）解调器，以及最大比组合（MRC）解调器和最小均方误差（MRC）的一个或多个 MMSE）解调器。

    NEGOTIATED CHANNEL INFORMATION REPORTING IN A WIRELESS COMMUNICATION SYSTEM
    30.
    发明公开
    NEGOTIATED CHANNEL INFORMATION REPORTING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    商定的信道信息报告在无线通信系统

    公开(公告)号：EP1896988A4

    公开(公告)日：2012-12-19

    申请号：EP06785029

    申请日：2006-06-16

    Applicant: QUALCOMM INC

    Inventor： SAMPATH HEMANTH ,  JULIAN DAVID JONATHAN

    IPC: H04B1/00

    CPC classification number: H04L1/0026 ,  H04L1/0016 ,  H04L1/0029 ,  H04L1/003

    Abstract: Techniques to enhance the performance in a wireless communication system using CQI feedback optimized to support different scenarios. According to one aspect, an access terminal may select a CQI feedback table based on the access terminals capability. According to another aspect, an access point may select a CQI feedback table based on an access terminals capability, system loading and the type of service provided by the access point. An access point which provides services that require high data rates may select a larger CQI feedback table to support the high data rates for access terminals which support the larger CQI feedback table. The same access point may select a smaller CQI feedback table for access terminals which do not have the capability or need for the high data rate services.

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