公开(公告)号：JP2011160440A

公开(公告)日：2011-08-18

申请号：JP2011045443

申请日：2011-03-02

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

Inventor： WALLACE MARK S ,  KETCHUM JOHN W ,  WALTON JAY RODNEY ,  HOWARD STEVEN J

IPC: H04J99/00 ,  H04B7/04 ,  H04B7/06 ,  H04B17/00 ,  H04L25/03

CPC classification number: H04B7/0421 ,  H04B17/20 ,  H04B17/21 ,  H04L25/03343 ,  H04L2025/03375 ,  H04L2025/03802

Abstract: PROBLEM TO BE SOLVED: To provide calibration of downlink and uplink to account for differences in the responses of transmit and receive chains at an access point and a user terminal. SOLUTION: For initial calibration, the access point and user terminal transmit MIMO pilots, which are used to derive channel estimates including the responses of the applicable transmit/receive chains, on the downlink and uplink. Correction matrices are derived based on these channel estimates, and thereafter they are used by the access point and user terminal, respectively. For follow-on calibration, one entity transmits the MIMO pilot and a steered reference. The other entity derives a first transmit matrix based on the steered reference, and a second transmit matrix based on the MIMO pilot and calibration error matrices which contain estimates of the errors. The calibration error matrices may be iteratively adjusted based on an adaptive procedure to minimize the errors between the two transmit matrices. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供下行链路和上行链路的校准以考虑接入点和用户终端处的发射和接收链的响应的差异。 解决方案：对于初始校准，接入点和用户终端发送MIMO导频，用于在下行链路和上行链路上导出包括适用的发射/接收链的响应的信道估计。 基于这些信道估计导出校正矩阵，然后分别由接入点和用户终端使用校正矩阵。 对于后续校准，一个实体发送MIMO导频和转向引用。 另一个实体基于导向参考导出第一发射矩阵，以及基于MIMO导频的第二发射矩阵和包含误差估计的校准误差矩阵。 可以基于自适应过程来迭代地调整校准误差矩阵，以最小化两个发射矩阵之间的误差。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011125040A

公开(公告)日：2011-06-23

申请号：JP2011002259

申请日：2011-01-07

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

Inventor： MEDVEDEV IRINA ,  WALTON JAY ROD ,  KETCHUM JOHN W

IPC: H04J99/00 ,  H04B7/005 ,  H04B7/04 ,  H04J11/00 ,  H04W24/00 ,  H04W52/24 ,  H04W52/26 ,  H04W52/34 ,  H04W52/50 ,  H04W72/00

CPC classification number: H04W52/346 ,  H04B7/0443 ,  H04W24/00 ,  H04W52/241 ,  H04W52/267 ,  H04W52/50 ,  H04W72/00

Abstract: PROBLEM TO BE SOLVED: To provide a method of reallocating excess power for full channel-state information (CSI) multiple-input, multiple-output (MIMO) systems. SOLUTION: The total transmit power may be initially allocated to the transmission channels based on a particular power allocation scheme. The initial allocation may result in more power being allocated to some transmission channels than needed to achieve the required SNR. In such situations, the techniques reallocate the excess transmit power of transmission channels operated in the saturation region to other transmission channels operated below the saturation region. In this way, higher data rate may be achieved for the "poorer" transmission channels without sacrificing the performance of the "better" transmission channels. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种重新分配用于全信道状态信息（CSI）多输入多输出（MIMO）系统的多余功率的方法。 解决方案：总发射功率可以基于特定的功率分配方案最初分配给传输信道。 初始分配可以导致比实现所需的SNR所需的更多的功率被分配给一些传输信道。 在这种情况下，这些技术将在饱和区域中运行的传输信道的多余发射功率重新分配到在饱和区域以下运行的其它传输信道。 以这种方式，对于“较差”的传输信道可以实现更高的数据速率，而不牺牲“更好”的传输信道的性能。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011061807A

公开(公告)日：2011-03-24

申请号：JP2010224039

申请日：2010-10-01

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

Inventor： WALTON RODNEY J ,  KETCHUM JOHN W ,  WALLACE MARK S ,  HOWARD STEVEN J

IPC: H04J99/00 ,  H04B7/04 ,  H04B7/06 ,  H04J11/00 ,  H04L1/00 ,  H04L25/02 ,  H04L27/26

CPC classification number: H04L1/0002 ,  H04B7/0417 ,  H04B7/0617 ,  H04L25/0206 ,  H04L25/0212 ,  H04L25/0242 ,  H04L27/2647

Abstract: PROBLEM TO BE SOLVED: To provide frequency-independent eigensteering in MISO and MIMO systems.
SOLUTION: For principal mode and multi-mode eigensteering, a correlation matrix is computed for a MIMO channel on the basis of channel response matrices to obtain steering vectors. ND data symbol streams are transmitted on best spatial channels using steering vectors, where for N
D =1 for principal mode eigensteering and N
D >1 for multi-mode eigensteering. For main path eigensteering, a data symbol stream is transmitted on the best spatial channel for the main propagation path of the MIMO channel. For receiver eigensteering, a data symbol stream is steered toward a receive antenna on the basis of a steering vector obtained for that receive antenna. For all eigensteering schemes, a matched filter is derived for each receive antenna on the basis of the steering vector(s) and channel response vectors for the receive antenna.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：在MISO和MIMO系统中提供频率独立的本征导引。 解决方案：对于主模式和多模式特征向导，基于信道响应矩阵为MIMO信道计算相关矩阵以获得导向矢量。 ND数据符号流使用导向向量在最佳空间信道上发送，其中对于主模式本征转向为N D = 1，对于多模式特征向导为N D > 1。 对于主路径特征导向，在MIMO信道的主传播路径的最佳空间信道上发送数据符号流。 对于接收机本征导向，基于为该接收天线获得的导向向量，将数据符号流转向接收天线。 对于所有本征导向方案，基于接收天线的导向矢量和信道响应向量，为每个接收天线导出匹配滤波器。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010213288A

公开(公告)日：2010-09-24

申请号：JP2010080856

申请日：2010-03-31

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

Inventor： WALTON J RODNEY ,  KETCHUM JOHN W ,  SMEE JOHN EDWARD ,  WALLACE MARK S ,  HOWARD STEVEN J

IPC: H04J99/00 ,  H04B1/707 ,  H04B7/04 ,  H04B7/06 ,  H04B7/10 ,  H04J11/00 ,  H04L5/02 ,  H04Q7/36 ,  H04W16/28 ,  H04W72/12

CPC classification number: H04B7/043 ,  H04B1/71072 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0697 ,  H04B17/309 ,  H04L5/023 ,  H04W16/28

Abstract: PROBLEM TO BE SOLVED: To provide a steering vector which is used by a terminal for transmission on the uplink by obtaining and decomposing an uplink channel response matrix for each terminal. SOLUTION: An "effective" uplink channel response vector is formed for each terminal based on its steering vector and its channel response matrix. Multiple sets of terminals are evaluated based on their effective channel response vectors to determine the best set for uplink transmission. Each selected terminal performs spatial processing on its data symbol stream with its steering vector and transmits its spatially processed data symbol stream to an access point. The multiple selected terminals simultaneously transmit their data symbol streams via their respective MIMO channels to the access point. The access point performs receiver spatial processing to its received symbol streams. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种由终端用于在上行链路上进行发送的导向向量，通过获得和分解每个终端的上行链路信道响应矩阵。 解决方案：基于其导向向量及其信道响应矩阵，为每个终端形成“有效”上行链路信道响应向量。 基于其有效信道响应向量来评估多组终端，以确定用于上行链路传输的最佳集合。 每个选择的终端利用其导向向量对其数据符号流执行空间处理，并将其空间处理的数据符号流发送到接入点。 多个选择的终端通过其相应的MIMO信道同时将其数据符号流发送到接入点。 接入点对其接收到的符号流执行接收机空间处理。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010200333A

公开(公告)日：2010-09-09

申请号：JP2010068739

申请日：2010-03-24

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

Inventor： WALTON RODNEY J ,  KETCHUM JOHN W ,  NANDA SANJIV

IPC: H04W48/18 ,  H04B7/005 ,  H04B7/04 ,  H04J3/00 ,  H04L12/66 ,  H04L29/06 ,  H04W72/04

CPC classification number: H04L12/66 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04W52/383

Abstract: PROBLEM TO BE SOLVED: To provide techniques for MAC processing for efficient use of high throughput systems that is backward compatible with various types of existing systems. SOLUTION: A first signal is transmitted according to an existing transmission format to reserve a portion of a shared medium, and communication according to a second transmission format transpires during the reserved portion. A communications device may compete for access on the existing system and then communicate according to a new class communication protocol, with one or more remote communication devices during the access period. A device may request access (2505) to a shared medium according to the existing protocol, and upon grant of access, the device may communicate with (2555, 2560) or facilitate communication between one or more remote stations, in accordance with the new protocol. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供MAC处理技术，以有效利用与各种类型的现有系统向后兼容的高吞吐量系统。 解决方案：根据现有的传输格式发送第一信号以保留共享介质的一部分，并且在保留部分期间发送根据第二传输格式的通信。 通信设备可以竞争现有系统上的访问，然后在访问期间内与一个或多个远程通信设备根据新的类通信协议进行通信。 设备可以根据现有协议请求对共享介质的访问（2505），并且在授权访问时，设备可以根据新协议（2555,2606）与一个或多个远程站通信，或促进一个或多个远程站之间的通信 。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2013031192A

公开(公告)日：2013-02-07

申请号：JP2012185380

申请日：2012-08-24

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

Inventor： BJORN BJERKE ,  MEDVEDEV IRINA ,  KETCHUM JOHN W ,  WALLACE MARK S ,  JAY RODNEY WALTON

IPC: H04J99/00 ,  H03M13/39 ,  H04J11/00

CPC classification number: H04L27/2647 ,  H04L1/005 ,  H04L1/0052 ,  H04L1/06 ,  H04L25/03171 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: PROBLEM TO BE SOLVED: To provide techniques for performing detection and decoding with reduced complexity while achieving good performance for a MIMO receiver.SOLUTION: Spatial processing is performed on a set of received symbols (812). Extrinsic LLRs are computed independently for each of at least one data symbol on the basis of a corresponding detected symbol and a priori LLRs, if any, from a decoder (814). A list of candidate hypotheses is determined for the remaining data symbols by performing a search using LSD, etc. (816). Extrinsic LLRs are computed for the remaining data symbols with the list of candidate hypotheses (818). The extrinsic LLRs for all the data symbols are decoded to obtain a priori LLRs for a detector (820). A determination is made whether to perform iteration (822). The extrinsic LLRs from the detector are processed to obtain decoded data (826).

Abstract translation: 要解决的问题：提供以降低的复杂度执行检测和解码的技术，同时为MIMO接收机实现良好的性能。 解决方案：对一组接收的符号进行空间处理（812）。 基于对应的检测符号和来自解码器（814）的先验LLR（如果有的话），对于至少一个数据符号中的每一个单独计算外部LLR。 通过使用LSD等进行搜索，确定剩余数据符号的候选假设的列表（816）。 使用候选假设列表计算剩余数据符号的外在LLR（818）。 用于所有数据符号的外在LLR被解码以获得用于检测器（820）的先验LLR。 确定是否执行迭代（822）。 来自检测器的外在LLR被处理以获得解码数据（826）。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012227935A

公开(公告)日：2012-11-15

申请号：JP2012130460

申请日：2012-06-08

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

Inventor： J RODNEY WALTON ,  KETCHUM JOHN W ,  OLIVER MICHAELIS

IPC: H04W8/00 ,  H04W72/04 ,  H04W84/18

CPC classification number: H04L41/12 ,  H04L45/306 ,  H04L45/64 ,  H04L67/104 ,  H04L67/1068 ,  H04L67/1072 ,  H04W8/005 ,  H04W24/02 ,  H04W40/246 ,  H04W76/021 ,  H04W76/023 ,  H04W84/18

Abstract: PROBLEM TO BE SOLVED: To allow nodes connected to a P2P wireless network to increase the overall connectivity of all the nodes in the network.SOLUTION: A connectivity metric (CM) value indicative of the number of other wireless nodes of a P2P wireless network to which a wireless node is connected is generated. The CM value is transmitted and full connectivity information maintained by the wireless node at a frequency determined based on the CM value is transmitted. The full connectivity information maintained by the wireless node is received in a time slot determined based on the received CM value. After the reception of the full connectivity information, a service query is transmitted to the wireless node based on the CM value.

Abstract translation: 要解决的问题：允许连接到P2P无线网络的节点增加网络中所有节点的总体连接性。 解决方案：生成指示无线节点连接到的P2P无线网络的其他无线节点的数量的连接度量（CM）值。 发送CM值，并且发送由基于CM值确定的频率由无线节点维护的完整连接性信息。 在基于接收的CM值确定的时隙中接收由无线节点维护的完整连接性信息。 在接收完整连接信息之后，基于CM值向无线节点发送业务查询。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012199940A

公开(公告)日：2012-10-18

申请号：JP2012106857

申请日：2012-05-08

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

Inventor： WALLACE MARK S ,  KETCHUM JOHN W ,  WALTON JAY RODNEY ,  HOWARD STEVEN J

IPC: H04J11/00 ,  H04B7/04 ,  H04W56/00

CPC classification number: H04W52/42 ,  H04L27/2613 ,  H04L27/2659 ,  H04L27/266 ,  H04W52/286

Abstract: PROBLEM TO BE SOLVED: To provide techniques for performing acquisition of packets.SOLUTION: First detection values are determined based on a first plurality of samples, e.g., by performing delay-multiply-integrate on the samples. Power values are determined based on the first plurality of samples, e.g., by performing multiply-integrate on the samples. The first detection values are averaged to obtain average detection values. The power values are also averaged to obtain average power values. Whether a packet is present is determined based on the average detection values and the average power values. Second detection values are determined based on a second plurality of samples. The start of the packet is determined based on the first and second detection values. A third detection value is determined based on a third plurality of samples. A frequency error of the packet is estimated based on the first and third detection values.

Abstract translation: 要解决的问题：提供执行数据包采集的技术。 解决方案：基于第一多个采样来确定第一检测值，例如通过对样本执行延迟乘法积分。 功率值基于第一多个采样来确定，例如通过对采样进行乘法整合。 将第一检测值平均以获得平均检测值。 功率值也被平均以获得平均功率值。 基于平均检测值和平均功率值确定分组是否存在。 基于第二多个样本确定第二检测值。 基于第一和第二检测值确定分组的开始。 基于第三多个采样来确定第三检测值。 基于第一和第三检测值来估计分组的频率误差。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012142953A

公开(公告)日：2012-07-26

申请号：JP2012023013

申请日：2012-02-06

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

Inventor： WALTON J RODNEY ,  KETCHUM JOHN W ,  WALLACE MARK S ,  HOWARD STEVEN J

IPC: H04J99/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04J11/00 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L1/16 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26 ,  H04W16/28 ,  H04W52/50

CPC classification number: H04L5/0048 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0628 ,  H04B7/0669 ,  H04B7/0697 ,  H04B7/0854 ,  H04B7/0871 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04L25/0226 ,  H04L25/0248 ,  H04L25/0256 ,  H04L25/03955 ,  H04L25/03968 ,  H04W16/28 ,  H04W52/50

Abstract: PROBLEM TO BE SOLVED: To provide a method for supporting multiple spatial multiplexing (SM) modes.SOLUTION: For data transmission, multiple data streams are coded and modulated in accordance with their selected rates to obtain multiple data symbol streams. These streams are then spatially processed in accordance with a selected SM mode (e.g., with a matrix of steering vectors for the steered mode and with the identity matrix for the non-steered mode) to obtain multiple transmit symbol streams for transmission from multiple antennas. For data reception, multiple received symbol streams are spatially processed in accordance with the selected SM mode (e.g., with a matrix of eigenvectors for the steered mode and with a spatial filter matrix for the non-steered mode) to obtain multiple recovered data symbol streams. These streams are demodulated and decoded in accordance with their selected rates to obtain multiple decoded data streams.

Abstract translation: 要解决的问题：提供一种支持多空间复用（SM）模式的方法。 解决方案：对于数据传输，根据其选定的速率对多个数据流进行编码和调制，以获得多个数据符号流。 然后根据选定的SM模式（例如，利用用于转向模式的导向矢量矩阵和非导向模式的单位矩阵）对这些流进行空间处理，以获得用于从多个天线发射的多个发射符号流。 对于数据接收，根据所选择的SM模式（例如，利用用于转向模式的特征向量矩阵和用于非转向模式的空间滤波器矩阵）来对多个接收到的符号流进行空间处理，以获得多个恢复的数据符号流 。 这些流根据其选择的速率进行解调和解码，以获得多个解码的数据流。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011151812A

公开(公告)日：2011-08-04

申请号：JP2011025957

申请日：2011-02-09

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

Inventor： HOWARD STEVEN J ,  KETCHUM JOHN W ,  WALLACE MARK S ,  MONSEN PETER ,  WALTON JAY RODNEY

IPC: H04J99/00 ,  H04B7/04

CPC classification number: H04B7/0854 ,  H04B7/0413 ,  H04L25/0246 ,  H04L25/0248 ,  H04L2025/03426 ,  H04L2025/03605 ,  H04L2025/03611

Abstract: PROBLEM TO BE SOLVED: To provide a technique for efficiently deriving a spatial filter matrix. SOLUTION: In a first scheme, a Hermitian matrix is iteratively derived, based on a channel response matrix, and a matrix inversion is calculated indirectly by iteratively deriving the Hermitian matrix. The spatial filter matrix is derived, based on the Hermitian matrix and the channel response matrix. In a second scheme, multiple rotations are performed to iteratively obtain first and second matrices for a pseudo-inverse matrix of the channel response matrix. The spatial filter matrix is derived based on the first and second matrices. In a third scheme, a matrix is formed based on the channel response matrix and decomposed to obtain a unitary matrix and a diagonal matrix. The spatial filter matrix is derived, based on the unitary matrix, the diagonal matrix and the channel response matrix. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于有效地导出空间滤波器矩阵的技术。 解决方案：在第一种方案中，基于信道响应矩阵迭代地导出Hermitian矩阵，并且通过迭代地导出Hermitian矩阵来间接计算矩阵求逆。 基于Hermitian矩阵和信道响应矩阵导出空间滤波矩阵。 在第二方案中，执行多次旋转以迭代地获得用于信道响应矩阵的伪逆矩阵的第一和第二矩阵。 基于第一和第二矩阵导出空间滤波器矩阵。 在第三方案中，基于信道响应矩阵形成矩阵并分解以获得酉矩阵和对角矩阵。 基于单一矩阵，对角矩阵和信道响应矩阵导出空间滤波器矩阵。 版权所有（C）2011，JPO＆INPIT