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    PHASE CORRECTION FOR OFDM AND MIMO TRANSMISSIONS
    11.
    发明公开
    PHASE CORRECTION FOR OFDM AND MIMO TRANSMISSIONS 审中-公开
    相位校正的OFDM和MIMO传输

    公开(公告)号：EP2025116A2

    公开(公告)日：2009-02-18

    申请号：EP07797663.7

    申请日：2007-05-22

    申请人： Qualcomm Incorporated

    发明人： WALTON, J. Rodney ,  WALLACE, Mark S. ,  MEDVEDEV, Irina ,  HOWARD, Steven, J.

    IPC分类号： H04L27/26 ,  H04L27/00

    CPC分类号： H04L27/0014 ,  H04L1/0045 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/061 ,  H04L27/261 ,  H04L27/2657 ,  H04L27/2662 ,  H04L2027/0053 ,  H04L2027/0067 ,  H04L2027/0087

    摘要： Techniques for performing phase correction for wireless communication are described. Received pilot symbols and received data symbols may be obtained from an orthogonal frequency division multiplexing (OFDM) and/or multiple-input multiple-output (MIMO) transmission. First phase information is obtained based upon the received pilot symbols. Second phase information is obtained based upon the received data symbols. The phase of the received data symbols is corrected based upon the first and second phase information (directly and/or indirectly). For example, the phase of the received data symbols may be corrected based upon the first phase information, detection may be performed on the phase corrected data symbols to obtain estimated data symbols, the second phase information may be obtained based upon the estimated data symbols, and the phase of the estimated data symbols may be corrected based upon the second phase information. The phase correction may also be performed in other manners.

    MULTIPLE FREQUENCY BAND OPERATION IN WIRELESS NETWORKS
    12.
    发明公开
    MULTIPLE FREQUENCY BAND OPERATION IN WIRELESS NETWORKS 有权
    更多波段操作在无线网络

    公开(公告)号：EP1813059A2

    公开(公告)日：2007-08-01

    申请号：EP05815502.9

    申请日：2005-10-20

    申请人： Qualcomm Incorporated

    发明人： NANDA, Sanjiv ,  SURINENI, Shravan, K. ,  WALTON, J. Rodney

    IPC分类号： H04L12/28 ,  H04Q7/36

    CPC分类号： H04W72/02 ,  H04W16/14 ,  H04W24/00 ,  H04W76/10

    摘要： Embodiments for bandwidth allocation methods, detecting interference with other systems, and/or redeploying in alternate bandwidth are described. Higher bandwidth channels may be deployed at channel boundaries (410), which are a subset of those for lower bandwidth channels (310), and may be restricted from overlapping. Interference may be detected (930) on primary, secondary, or a combination of channels, and may be detected in response to energy measurements (910) of the various channels. When interference is detected, a higher bandwidth Basic Service Set (BSS)(100) may be relocated to an alternate channel, or may have its bandwidth reduced to avoid interference. Interference may be detected based on energy measured on the primary or secondary channel, and/or a difference between the two. An FFT (1010) may be used in energy measurement in either or both of the primary and secondary channels. Stations may also monitor messages from alternate systems to make channel allocation decisions. Various other aspects are also presented.

    METHOD AND APPARATUS FOR PROVIDING AN EFFICIENT CONTROL CHANNEL STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM
    13.
    发明公开
    METHOD AND APPARATUS FOR PROVIDING AN EFFICIENT CONTROL CHANNEL STRUCTURE IN A WIRELESS COMMUNICATION SYSTEM 有权
    方法和设备提供了一种高效的控制信道结构的在无线通信系统

    公开(公告)号：EP1695489A1

    公开(公告)日：2006-08-30

    申请号：EP04801075.5

    申请日：2004-11-15

    申请人： QUALCOMM INCORPORATED

    发明人： WALTON, J. Rodney ,  KETCHUM, John W.

    IPC分类号： H04L12/28 ,  H04L12/56 ,  H04Q7/38 ,  H04L1/00 ,  H04L27/26 ,  H04L1/06 ,  H04B7/26

    CPC分类号： H04L1/06 ,  H04B7/2643 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/16 ,  H04L25/0204 ,  H04L27/261 ,  H04L2001/0093 ,  H04W24/02 ,  H04W28/18 ,  H04W72/0406 ,  H04W72/14 ,  H04W84/12

    摘要： According to one aspect of the invention, a method is provided in which a control channel used for transmitting control information is partitioned into a plurality of subchannels each of which is operated at a specific data rate. For each of one or more user terminals, one of the subchannels is selected based on one or more selection criteria for transmitting control information from an access point to the respective user terminal. Control information is transmitted from the access point to a user terminal on a particular subchannel selected for the respective user terminal. At the user terminal, one or more subchannels are decoded to obtain control information designated for the user terminal.

    摘要翻译： 。根据本发明的一个方面，提供了一种方法，其中，用于发送控制信息的控制信道被划分为每一个所有其在一个特定的数据率工作的子信道的多元性。 对于每一个的一个或多个用户终端，所述子信道中的一个是基于用于在接入点从传输控制信息到用户终端respectivement一个或多个选择标准来选择。 控制信息是从接入点到用户终端上选择用于respectivement用户终端特定子信道反mitted。 在用户终端，一个或多个子信道进行解码，以获得指定为所述用户终端的控制信息。

    QUALITY OF SERVICE SCHEDULER FOR A WIRELESS NETWORK
    14.
    发明公开
    QUALITY OF SERVICE SCHEDULER FOR A WIRELESS NETWORK 有权
    DIENSTQUALITÄT-SCHEDULERFÜREIN DRAHTLOSES NETZWERK

    公开(公告)号：EP1692829A1

    公开(公告)日：2006-08-23

    申请号：EP04812250.1

    申请日：2004-11-24

    申请人： QUALCOMM INCORPORATED

    发明人： WALTON, J. Rodney ,  NANDA, Sanjiv

    IPC分类号： H04L12/56 ,  H04L12/28 ,  H04Q7/38

    CPC分类号： H04L47/72 ,  H04L47/10 ,  H04L47/14 ,  H04L47/20 ,  H04L47/245 ,  H04L47/2475 ,  H04L47/30 ,  H04L47/50 ,  H04L47/564 ,  H04L47/568 ,  H04L47/60 ,  H04L47/70 ,  H04L47/765 ,  H04L47/803 ,  H04L47/805 ,  H04L47/808 ,  H04L47/824 ,  H04L47/826 ,  H04W8/18 ,  H04W28/18 ,  H04W72/1236

    摘要： In one aspect of the invention, a communication device, operable with a plurality of remote devices, and operable with an admission profile comprising a capacity reservation for zero or more remote devices, comprises a scheduler for determining if a remote device corresponding to the data transmission indicator has a capacity reservation in the admission profile and for allocating capacity in accordance with the data transmission indicator. In another aspect, data indicators correspond to one or more service levels. Remaining capacity may be allocated in priority of increasing size of data transmission requirement. In yet another aspect, an admission profile is updated to accept a new flow, characterized by flow parameters, in accordance with available system capacity.

    摘要翻译： 在本发明的一个方面中，一种可与多个远程设备一起操作的通信设备，并且具有包括对零个或多个远程设备的容量预留的准入简档可操作的通信设备包括调度器，用于确定对应于数据传输的远程设备 指示符在准入简档中具有容量预留，并且根据数据传输指示符分配容量。 在另一方面，数据指示符对应于一个或多个服务级别。 剩余容量可以优先分配数据传输需求的增加。 在另一方面，根据可用的系统容量，允许简档被更新以接受以流量参数为特征的新流程。 还提出了各种其他方面。

    EIGENVALUE DECOMPOSITION AND SINGULAR VALUE DECOMPOSITION OF MATRICES USING JACOBI ROTATION
    20.
    发明公开
    EIGENVALUE DECOMPOSITION AND SINGULAR VALUE DECOMPOSITION OF MATRICES USING JACOBI ROTATION 审中-公开
    本征值分解和切割奇异值模具使用雅可比旋转

    公开(公告)号：EP1828923A2

    公开(公告)日：2007-09-05

    申请号：EP05851789.7

    申请日：2005-11-15

    申请人： QUALCOMM INCORPORATED

    发明人： KETCHUM, John W. ,  WALTON, J. Rodney ,  WALLACE, Mark S. ,  HOWARD, Steven J. ,  INANOGLU, Hakan

    IPC分类号： G06F17/16

    CPC分类号： H04L25/0248 ,  G06F17/16

    摘要： Techniques for decomposing matrices using Jacobi rotation are described. Multiple iterations of Jacobi rotation are performed on a first matrix of complex values with multiple Jacobi rotation matrices of complex values to zero out the off-diagonal elements in the first matrix. For each iteration, a submatrix may be formed based on the first matrix and decomposed to obtain eigenvectors for the submatrix, and a Jacobi rotation matrix may be formed with the eigenvectors and used to update the first matrix. A second matrix of complex values, which contains orthogonal vectors, is derived based on the Jacobi rotation matrices. For eigenvalue decomposition, a third matrix of eigenvalues may be derived based on the Jacobi rotation matrices. For singular value decomposition, a fourth matrix with left singular vectors and a matrix of singular values may be derived based on the Jacobi rotation matrices.