公开(公告)号：JP2010259098A

公开(公告)日：2010-11-11

申请号：JP2010160329

申请日：2010-07-15

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 ,  GOROKHOV ALEXEI ,  GORE DHANANJAY ASHOK

IPC: H04J99/00 ,  H04B7/04 ,  H04J11/00

CPC classification number: H04B7/0417 ,  H04B7/0617 ,  H04B7/063 ,  H04B7/0632 ,  H04L5/023 ,  H04L25/0224 ,  H04L27/261

Abstract: PROBLEM TO BE SOLVED: To provide systems and methods for beamforming in multi-input multi-output communication systems. SOLUTION: Methods and apparatuses are disclosed that utilize information from transmission paths less than all transmission paths from a transmitter to form beamforming weights for transmission. In addition, methods and apparatuses are disclosed that utilize channel information, such as CQI, eigenbeam weights, and/or channel estimates, to form beamforming weights. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供多输入多输出通信系统中波束成形的系统和方法。 解决方案：公开了利用来自发射机的小于所有传输路径的传输路径的信息以形成用于传输的波束成形权重的方法和装置。 此外，公开了利用诸如CQI，本征光束权重和/或信道估计之类的信道信息来形成波束成形权重的方法和装置。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2013128300A

公开(公告)日：2013-06-27

申请号：JP2013007375

申请日：2013-01-18

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 ,  H04J1/00 ,  H04J11/00 ,  H04W28/18

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

Abstract: PROBLEM TO BE SOLVED: To improve resistance to interference and maintain a code rate in spite of increase of transmissions in a MIMO SCW (single code word) design employing HARQ, by reducing a rank, e.g., of a user device, stepwise as the number of transmissions from the user increases.SOLUTION: From a rate prediction component 306 and a MIMO transmission rank M specified by a receiver 318 via feedback, coded symbols are demultiplexed by a demultiplexer 308 to generate streams, which are then spatially mapped by a spatial mapping component 310 to Mantennas. A plurality of individual OFDM modulators 312, 314, and 316 then modulate the Mstreams for transmission by the Mantennas.

Abstract translation: 要解决的问题：为了提高抗干扰性并且尽管在采用HARQ的MIMO SCW（单码字）设计中的传输增加，通过降低诸如用户设备的等级，逐步地 因为来自用户的传输的数量增加。 解决方案：从接收机318通过反馈指定的速率预测组件306和MIMO传输级M，编码符号由解复用器308解复用以产生流，然后将空间映射组件310空间映射到M T 天线。 然后，多个单独的OFDM调制器312,314和316调制用于通过M T 天线发射的M SB SB =“POST”> T“。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013123241A

公开(公告)日：2013-06-20

申请号：JP2013003453

申请日：2013-01-11

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

Inventor： GORE DHANANJAY ASHOK ,  ALEXEI GOROKHOV ,  SAMPATH HEMANTH ,  JI TINGFANG ,  KADOUS TAMER

IPC: H04W16/28 ,  H04B7/10 ,  H04W16/00 ,  H04W16/24

CPC classification number: H04W16/00 ,  H04W16/24 ,  H04W16/28 ,  H04W72/046 ,  H04W72/085

Abstract: PROBLEM TO BE SOLVED: To provide apparatuses and methodologies that enhance performance in a wireless communication system using beamforming transmissions.SOLUTION: A set of transmit beams are defined that simultaneously provides space division multiplexing, multiple-input multiple output (MIMO) transmission, and opportunistic beamforming. The addition of a wide beam guarantees a minimum acceptable performance for all user devices.

Abstract translation: 要解决的问题：提供使用波束成形传输来增强在无线通信系统中的性能的装置和方法。 解决方案：定义了一组同时提供空分复用，多输入多输出（MIMO）传输和机会波束成形的发射波束。 添加宽光束可保证所有用户设备的最低可接受性能。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012105271A

公开(公告)日：2012-05-31

申请号：JP2011243644

申请日：2011-11-07

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

Inventor： SAMPATH HEMANTH

IPC: H04J99/00 ,  H04B7/04 ,  H04J11/00 ,  H04W52/04 ,  H04W52/26

CPC classification number: H04L1/0026 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0025 ,  H04W52/04 ,  H04W52/26

Abstract: PROBLEM TO BE SOLVED: To execute rank prediction in a MIMO system.SOLUTION: Performance metrics for a plurality of ranks are determined. Each rank is indicative of a different number of data streams to send simultaneously via a MIMO channel. The performance metrics relate to the capacity or signal quality of the MIMO channel or the throughput of data transmission sent via the MIMO channel. Adjustments are applied to the performance metrics for the ranks to obtain adjusted performance metrics. The adjustments account for system losses such as losses due to an error correction code used for data transmission, channel estimation errors at a receiver, variation in interference observed by the receiver, variability in transmission power by power control, and/or other factors. A rank to be used is selected based on the adjusted performance metrics for the ranks.

Abstract translation: 要解决的问题：在MIMO系统中执行秩预测。

解决方案：确定多个等级的性能指标。 每个等级表示通过MIMO信道同时发送的不同数量的数据流。 性能度量涉及MIMO信道的容量或信号质量或通过MIMO信道发送的数据传输的吞吐量。 对行列的绩效指标进行调整，以获得调整后的绩效指标。 该调整涉及系统损耗，例如由于用于数据传输的纠错码，接收机处的信道估计误差，接收机观测到的干扰变化，功率控制的发射功率的变化性和/或其他因素引起的损耗。 将根据调整后的绩效指标来选择要使用的等级。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011124994A

公开(公告)日：2011-06-23

申请号：JP2010259984

申请日：2010-11-22

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

Inventor： SAMPATH HEMANTH ,  GOROKHOV ALEXEI ,  KHANDEKAR AAMOD ,  TEAGUE EDWARD HARRISON ,  JULIAN DAVID JONATHAN ,  KADOUS TAMER ,  SUTIVONG ARAK

IPC: H04J99/00

CPC classification number: H04L1/0028 ,  H04L1/0026 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

Abstract: PROBLEM TO BE SOLVED: To provide methods and devices for providing flexible channel information feedback.
SOLUTION: The device is provided with a memory and a processor, which is configured to select a type of channel information feedback based on a reporting format of a wireless communication device, and the processor is configured to select the type based on instructions corresponding to the reporting format. The type includes an SDMA CQI and an appropriate segment CQI and further includes an MCW, SCW and SISO CQIs. In some cases, this may be according to reporting types assigned by one or more sectors, with different reporting types for each sector. In other cases, a reporting mode is used to determine the reporting types to be utilized.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供用于提供灵活的信道信息反馈的方法和设备。 解决方案：设备设置有存储器和处理器，其被配置为基于无线通信设备的报告格式来选择信道信息反馈的类型，并且处理器被配置为基于指令来选择类型 对应报告格式。 该类型包括SDMA CQI和适当的分段CQI，并且还包括MCW，SCW和SISO CQI。 在某些情况下，这可能是根据由一个或多个部门分配的报告类型，每个部门具有不同的报告类型。 在其他情况下，使用报告模式来确定要使用的报告类型。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2013229904A

公开(公告)日：2013-11-07

申请号：JP2013127153

申请日：2013-06-18

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

Inventor： SAMPATH HEMANTH ,  SAMEER VERMANI ,  RICHARD VAN NEE ,  SANTOSH P ABRAHAM ,  ALBERT VAN ZELST

IPC: H04W16/28 ,  H04W84/12

CPC classification number: H04W72/121 ,  H04B7/0417 ,  H04B7/0452 ,  H04W88/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for efficiently and effectively determining multiuser scheduling in a multiuser communication system.SOLUTION: An embodiment comprises a processing system configured to: determine transmission times of a plurality of wireless nodes; group the plurality of wireless nodes into sets on the basis of the determined transmission times; and exchange data using a multi-user multiple-input and multiple-output transmission with at least one of the wireless nodes in one of the sets. The processing system is configured to group the plurality of wireless nodes into the sets such that each of the sets comprises wireless nodes with approximately equal transmissions times.

Abstract translation: 要解决的问题：提供一种在多用户通信系统中有效且有效地确定多用户调度的方法。解决方案：实施例包括：处理系统，被配置为：确定多个无线节点的传输时间; 基于确定的传输时间将多个无线节点分组成集合; 并且使用多用户多输入和多输出传输与其中一个集合中的至少一个无线节点交换数据。 处理系统被配置为将多个无线节点分组成集合，使得每个集合包括具有大致相等传输时间的无线节点。

公开(公告)号：JP2012142959A

公开(公告)日：2012-07-26

申请号：JP2012028351

申请日：2012-02-13

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

Inventor： SAMPATH HEMANTH

IPC: H04L1/00 ,  H04J99/00

CPC classification number: H04L1/0045 ,  H04B7/0817 ,  H04L1/06 ,  H04L2025/03426

Abstract: PROBLEM TO BE SOLVED: To provide a method of determining which demodulator is most likely to produce the best outcome in a multiple-input receiver.SOLUTION: A multiple-input receiver for processing one or more communication signals includes a first demodulator, a second demodulator, a decoder, and decision logic. The first and second demodulators respectively use a first algorithm and a second algorithm and are both coupled to the receiver. The first algorithm includes interference nulling and is different from the second algorithm. A decoder can be alternatively used with the first demodulator or the second demodulator to decode one or more signals from the receiver. The decoder produces a decoded signal. The decision logic chooses to use either the first demodulator or the second demodulator to affect the decoded signal.

Abstract translation: 要解决的问题：提供一种确定哪个解调器最有可能在多输入接收机中产生最佳结果的方法。 解决方案：用于处理一个或多个通信信号的多输入接收器包括第一解调器，第二解调器，解码器和判定逻辑。 第一和第二解调器分别使用第一算法和第二算法，并且都耦合到接收器。 第一种算法包括干扰归零，与第二种算法不同。 解码器可以替代地与第一解调器或第二解调器一起用于解码来自接收器的一个或多个信号。 解码器产生解码信号。 决策逻辑选择使用第一解调器或第二解调器来影响解码信号。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012114913A

公开(公告)日：2012-06-14

申请号：JP2011254035

申请日：2011-11-21

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

Inventor： SAMPATH HEMANTH

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

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

Abstract: PROBLEM TO BE SOLVED: To provide systems and methods for facilitating interference nulling and rank prediction in an access terminal.SOLUTION: A plurality of receiver demodulator types are implemented to the access terminal, and an interference covariance matrix is estimated at the access terminal. SNRs are calculated for the various receiver demodulator types, and an optimum rank and associated CQI information are identified and generated, respectively, and the information is then transmitted to an access point. At least one of the receiver demodulator types performs an interference nulling protocol. The receiver demodulator types comprise at least one minimum mean-squared error interference-nulling (MMSE-IN) demodulator, along with one or more of a maximal ratio combining (MRC) demodulator and a minimum mean-squared error (MMSE) demodulator.

Abstract translation: 要解决的问题：提供用于促进接入终端中的干扰归零和秩预测的系统和方法。 解决方案：对接入终端实施多个接收机解调器类型，并且在接入终端处估计干扰协方差矩阵。 针对各种接收机解调器类型计算SNR，并且分别识别和生成最佳等级和相关联的CQI信息，然后将该信息发送到接入点。 至少一个接收机解调器类型执行干扰归零协议。 接收机解调器类型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（MMSE）解调器中的一个或多个。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012075109A

公开(公告)日：2012-04-12

申请号：JP2011219589

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 ,  H04J11/00 ,  H04L1/16 ,  H04W16/28 ,  H04W24/10 ,  H04W28/04

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

Abstract: PROBLEM TO BE SOLVED: To provide a method of performing rank step-down for MIMO SCW (single code word) design employing HARQ.SOLUTION: Systems and methods are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions from the user increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Rank step-down information is encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (approximately every 5 msec). 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：提供一种使用HARQ执行MIMO SCW（单码字）设计的秩降级的方法。 解决方案：描述了随着来自用户的多个传输增加而有助于减少等级（例如，用户设备）的系统和方法。 这种级别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。 等级降级信息与CQI信息一起被编码，以生成可以有助于在每次CQI传输（大约每5毫秒）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

公开(公告)号：JP2011142654A

公开(公告)日：2011-07-21

申请号：JP2011027351

申请日：2011-02-10

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 ,  H04J11/00

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

Abstract: PROBLEM TO BE SOLVED: To improve throughput and reliability in MIMO wireless network systems.
SOLUTION: A wireless communication apparatus includes: a receiver for receiving a signal from a user device; a demodulator for demodulating the received signal; a processor for analyzing demodulated information for assessing at least one of CQI (Channel Quality Index), rank, transmission schedule, packet format and resource assignment related to the user device; a forward link assignment message (FLAM) generator for appending update information to a signal generated by the processor for transmission to the user device; and a transmitter for transmitting the FLAM to the user device.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提高MIMO无线网络系统的吞吐量和可靠性。 解决方案：无线通信设备包括：接收器，用于从用户设备接收信号; 解调器，用于解调所接收的信号; 用于分析用于评估与用户设备相关的CQI（信道质量指数），秩，传输调度，分组格式和资源分配中的至少一个的解调信息的处理器; 前向链路分配消息（FLAM）生成器，用于将更新信息附加到由处理器生成的信号以传送到用户设备; 以及用于将FLAM发送到用户设备的发射机。 版权所有（C）2011，JPO＆INPIT