公开(公告)号：CA2750105A1

公开(公告)日：2010-08-05

申请号：CA2750105

申请日：2010-02-02

Applicant: QUALCOMM INC

Inventor： LUO XILIANG ,  FARAJIDANA AMIR ,  ZHANG XIAOXIA ,  MONTOJO JUAN

IPC: H04B7/06

Abstract: Systems and methodologies are described that facilitate performing antenna virtualization in a wireless communication environment. A set of physical transmit antennas can be partitioned into a plurality of groups of physical transmit antennas. Further, a precoding vector for a particular group of physical transmit antennas from the plurality of groups of physical transmit antennas can be formulated. Moreover, the particular group of physical transmit antennas can form a particular virtual antenna. By way of another example, a disparate precoding vector for a disparate group of physical transmit antennas from the plurality of groups of physical transmit antennas can be formulated, and the disparate group of physical transmit antennas can form a disparate virtual antenna. The precoding vector can be applied to a signal for transmission over the particular virtual antenna, and the disparate precoding vector can be applied to a disparate signal for transmission over the disparate virtual antenna.

公开(公告)号：NO20092094L

公开(公告)日：2009-05-29

申请号：NO20092094

申请日：2009-05-28

Applicant: QUALCOMM INC

Inventor： MALLADI DURGA PRASAD ,  CHEN WANSHI ,  ZHANG XIAOXIA ,  LUO XILIANG

IPC: H04L27/00 ,  H04B7/005 ,  H04W28/00

Abstract: A system and method for facilitating resource management in OFDM systems is provided. The system permits different and flexible resource cell metric operations levels (e.g. uplink load management, admission control, congestion control, signal handoff control) for different sub-bands. For the uplink load management, there are multiple distinct load operation points (e.g. IoT, RoT) per sub-band group instead of the same operation level across the entire available band. The sub-band groups encompass the entire band. The facilitation system also comprises a variety of transmitting protocols, command increment variable stepsize methods and robust command response methods. The system thus provides more flexible reverse link resource management and more efficient utilization of the bandwidth.

公开(公告)号：CA2664170A1

公开(公告)日：2008-05-08

申请号：CA2664170

申请日：2007-10-30

Applicant: QUALCOMM INC

Inventor： ZHANG XIAOXIA ,  MALLADI DURGA PRASAD ,  LUO XILIANG

IPC: H04B7/005

Abstract: System (s) and method (s) are provided for inter-cell power control in th e presence of fractional frequency reuse in a wireless communication system. Transmission power control of a terminal (210); and ensuing inter-cell inte rference mitigation, is accomplished by receiving load indicators (23Oi) fro m non-serving sectors (246i), decoding those load indicators corresponding t o the non-serving sectors that operate in the same frequency bands as the te rminal, and adjusting the transmission power according to the states of the decoded load indicators in conjunction with the associated non-serving secto r forward link signal-to-interference and-noise ratio at the terminal. The s tates of the load indicators reflect magnitudes of interference metrics with respect to threshold values. Load indicators can also be conveyed by the no n-serving sector to4 a base station (260) serving the terminal through a bac khaul (250) communication, and said base station can schedule an adjusted tr ansmission power for the terminal.

公开(公告)号：WO2012024588A3

公开(公告)日：2012-05-31

申请号：PCT/US2011048423

申请日：2011-08-19

Applicant: QUALCOMM INC ,  BHATTAD KAPIL ,  LUO TAO ,  YOO TAESANG ,  ZHANG XIAOXIA ,  LUO XILIANG ,  LIU KE ,  MALLADI DURGA PRASAD

Inventor： BHATTAD KAPIL ,  LUO TAO ,  YOO TAESANG ,  ZHANG XIAOXIA ,  LUO XILIANG ,  LIU KE ,  MALLADI DURGA PRASAD

IPC: H04W88/06

CPC classification number: H04J11/0083 ,  H04B1/70718 ,  H04L5/0007 ,  H04W28/04 ,  H04W48/16 ,  H04W88/02

Abstract: User equipment (UE) associated with synchronous networks operate in a synchronous mode while UEs associated with asynchronous networks operate in an asynchronous mode. When operating in a synchronous mode, a UE can significantly improve performance of synchronization signal detection, data decoding, and tracking loop management by using the interference cancellation (IC) techniques that are not available in an asynchronous mode of operation. Obtaining synchronization indicators and determining the synchronization status of the current network by UE is disclosed. The determination may be based on the synchronization indicator, whether detected through signal detection, signal measurements, signal analysis, or the like.

Abstract translation: 与同步网络相关联的用户设备（UE）以同步模式工作，而与异步网络相关联的UE以异步模式工作。 当在同步模式下工作时，UE可以通过使用在异步操作模式中不可用的干扰消除（IC）技术来显着提高同步信号检测，数据解码和跟踪环路管理的性能。 公开了获取同步指示符并确定UE当前网络的同步状态。 该确定可以基于通过信号检测，信号测量，信号分析等检测的同步指示器。

公开(公告)号：WO2010093815A3

公开(公告)日：2011-03-31

申请号：PCT/US2010023932

申请日：2010-02-11

Applicant: QUALCOMM INC ,  GOROKHOV ALEXEI Y ,  MONTOJO JUAN ,  ZHANG XIAOXIA ,  GAAL PETER ,  LUO XILIANG

Inventor： GOROKHOV ALEXEI Y ,  MONTOJO JUAN ,  ZHANG XIAOXIA ,  GAAL PETER ,  LUO XILIANG

IPC: H04L1/06

CPC classification number: H04L27/0008 ,  H04L5/0064 ,  H04L27/20 ,  H04L27/2602 ,  H04L27/36

Abstract: Systems and methodologies are described herein that facilitate improved modulation and coding techniques for a multiple-in multiple-out (MIMO) communication system. As described herein, data to be transmitted over a set of physical layers (e.g., corresponding to antennas, beams, etc.) can be processed such that encoding is performed on a per-codeword basis and modulation is performed on a per- layer basis, thereby mitigating performance degradation experienced by traditional systems due to layer imbalance. As further described herein, per-codeword code rate parameters and per-layer modulation parameters can be signaled to a device in various manners, such as through modulation and coding scheme (MCS) signaling, explicit code rate and/or modulation scheme signaling, relative code rate and/or modulation scheme signaling, or the like.

Abstract translation: 本文描述了促进针对多输入多输出（MIMO）通信系统的改进的调制和编码技术的系统和方法。 如本文所述，可以处理要通过一组物理层（例如，对应于天线，波束等）发送的数据，使得在每个码字的基础上执行编码，并且基于每层进行调制 ，从而减轻传统系统由于层不平衡而导致的性能下降。 如本文进一步描述的，每码字码速率参数和每层调制参数可以以各种方式向设备发信号，例如通过调制和编码方案（MCS）信令，显式码率和/或调制方式信令，相对 码率和/或调制方案信令等。

公开(公告)号：ES2763407T3

公开(公告)日：2020-05-28

申请号：ES11788732

申请日：2011-11-15

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  LUO XILIANG ,  MONTOJO JUAN

IPC: H04L5/00 ,  H04L1/18

Abstract: Un procedimiento de comunicación inalámbrica, que comprende: recibir una concesión de enlace descendente (708) para planificar transmisiones de datos, donde la concesión de enlace descendente incluye un comando de control de potencia de transmisión, TPC, (712) y un índice de asignación de enlace descendente, DAI, (710) para una subtrama de enlace ascendente; determinar un valor para el comando TPC como un indicador de recurso de acuse de recibo/acuse de recibo negativo, ACK/NACK, para un recurso de canal de control de enlace ascendente en función de un valor del DAI; caracterizado por: transmitir (810), durante la subtrama de enlace ascendente, uno o más elementos de retroalimentación de ACK/NACK (720) y una solicitud de planificación, SR, usando el recurso de canal de control de enlace ascendente, donde el ACK/NACK y la SR se codifican conjuntamente, con el bit de SR añadido al final.

公开(公告)号：HUE042385T2

公开(公告)日：2019-06-28

申请号：HUE11752682

申请日：2011-08-15

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  ZHANG XIAOXIA ,  GAAL PETER ,  MONTOJO JUAN ,  LUO XILIANG ,  LUO TAO ,  DAMNJANOVIC JELENA ,  DAMNJANOVIC ALEKSANDAR

IPC: H04L1/18 ,  H04B7/06 ,  H04L5/00 ,  H04W52/32 ,  H04W52/34 ,  H04W52/42 ,  H04W72/12

公开(公告)号：HUE037497T2

公开(公告)日：2018-08-28

申请号：HUE11770971

申请日：2011-10-04

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  GAAL PETER ,  LUO XILIANG ,  MONTOJO JUAN

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00

公开(公告)号：MY165241A

公开(公告)日：2018-03-14

申请号：MYPI2012002809

申请日：2011-01-11

Applicant: QUALCOMM INC

Inventor： LUO XILIANG ,  CHEN WANSHI ,  ZHANG XIAOXIA ,  GAAL PETER ,  MONTOJO JUAN

IPC: H04L5/00 ,  H04J11/00

Abstract: METHODS AND APPARATUSES ARE PROVIDED FOR DETERMINING CYCLIC SHIFT (CS) VALUES AND/OR ORTHOGONAL COVER CODES (OCC) FOR A PLURALITY OF DEMODULATION REFERENCE SIGNALS (DM-RS) TRANSMITTED OVER MULTIPLE LAYERS IN MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) COMMUNICATIONS. A CS INDEX CAN BE RECEIVED FROM A BASE STATION (102, 202, 302, 702, 1002, 1110) IN DOWNLINK CONTROL INFORMATION (DCI) OR SIMILAR SIGNALING. BASED AT LEAST IN PART ON THE CS INDEX, CS VALUES FOR THE PLURALITY OF DM-RSS CAN BE DETERMINED. IN ADDITION, OCC CAN BE EXPLICITLY SIGNALED OR SIMILARLY DETERMINED FROM THE CS INDEX AND/OR A CONFIGURED CS VALUE RECEIVED FROM A HIGHER LAYER. IN ADDITION, CONTROLLING ASSIGNMENT OF CS INDICES AND/OR OCC CAN FACILITATE PROVIDING ORTHOGONALITY FOR COMMUNICATIONS FROM PAIRED DEVICES IN MULTIUSER MIMO.

公开(公告)号：ES2652599T3

公开(公告)日：2018-02-05

申请号：ES11770971

申请日：2011-10-04

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  GAAL PETER ,  LUO XILIANG ,  MONTOJO JUAN

IPC: H04L1/16 ,  H04L1/18 ,  H04L5/00

Abstract: Un procedimiento de comunicación inalámbrica, que comprende: recibir (610) una configuración de la capa superior de una pluralidad de conjuntos de recursos de ACK/NAK para la transmisión de enlace ascendente correspondiente, al menos, a una portadora secundaria de componentes de enlace descendente en una configuración de múltiples portadoras; recibir (612) un indicador de capa física de recursos de ACK/NAK en la pluralidad de conjuntos, en el que el indicador de capa física comprende un índice para la pluralidad de conjuntos; recibir una transmisión de datos de enlace descendente en una portadora primaria de componentes y la al menos una portadora secundaria de componentes de enlace descendente; determinar los primeros recursos de ACK/NACK basados en un elemento de canal de control, CCE, de la portadora primaria de componentes; y determinar los segundos recursos de ACK/NACK basados en un elemento de cada conjunto correspondiente al índice; enviar información de ACK/NAK para la transmisión de datos de enlace descendente en un canal físico de control de enlace ascendente usando los recursos de ACK/NAK.