公开(公告)号：AU2013273853A1

公开(公告)日：2014-01-16

申请号：AU2013273853

申请日：2013-12-23

Applicant: QUALCOMM INC

Inventor： HOU JILEI ,  SMEE JOHN EDWARD ,  MALLADI DURGA PRASAD ,  HASSANPOURGHADY NAVID ,  MALLIK SIDDHARTHA

IPC: H04B7/02 ,  H04B7/04

Abstract: Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate. C: U))

公开(公告)号：AU2009279485B2

公开(公告)日：2013-09-26

申请号：AU2009279485

申请日：2009-08-07

Applicant: QUALCOMM INC

Inventor： HOU JILEI ,  SMEE JOHN E ,  MALLADI DURGA PRASAD ,  HASSANPOUR GHADY NAVID ,  MALLIK SIDDHARTHA

IPC: H04B7/02 ,  H04B7/04

Abstract: Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.

公开(公告)号：ES2390489T3

公开(公告)日：2012-11-13

申请号：ES07701215

申请日：2007-01-08

Applicant: QUALCOMM INC

Inventor： EL-KHAMY MOSTAFA ,  HOU JILEI ,  BHUSHAN NAGA

IPC: H03M13/00 ,  H03M13/11

Abstract: Un procedimiento para generar códigos de tasa compatible LDPC basados en protografos de tasa alta a partirde códigos de tasa baja para codificar datos para su transmisión a través de un canal de comunicaciones:en el que dichos códigos de tasa baja son códigos padres, comprendiendo el procedimiento:generar dichos códigos padre mediante:copiar un grafo base;permutar puntos de extremo de aristas de un mismo tipo en copias de dicho grafo base paraproducir un grafo permutado; ypodar nodos de entrada sistemáticos (20) en dicho grafo permutado y dichas aristasconectadas a los mismos;perforar un subconjunto de bits de palabra de código (30), comprendiendo:perforar de manera progresiva nodos variables (20) para obtener un código deseado a partirde un código anterior en una familia de tasa compatible del código padre respectivo;donde dicha etapa de perforar de manera progresiva nodos variables (20) para obtener uncódigo deseado a partir de un código anterior comprende:perforar de manera progresiva dichos nodos variables (20) de un conjunto de nodosvariables redundantes no perforados (20) de cardinalidad rm-1, donde rm-1 es el númerode elementos del conjunto de nodos variables redundantes no perforados (20) delcódigo anterior y donde los nodos variables redundantes no perforados (20) del códigoanterior pueden perforarse para proporcionar el código de una tasa deseada;donde dicha etapa de perforar de manera progresiva nodos variables (20) del conjuntode nodos variables redundantes no perforados (20) comprende una etapa deinicialización que comprende:calcular para cada nodo de comprobación (25) conectado a al menos un nodovariable redundante (20) el número de nodos variables perforados (20)conectados a dicho nodo de comprobación (25);hallar dicho conjunto de nodos variables redundantes no perforados (20);calcular para cada nodo variable redundante no perforado (20) el número detales nodos de comprobación (25) conectados al nodo variable redundante noperforado (20) que están conectados solamente a un nodo variable perforado(20); ycalcular para cada nodo variable redundante no perforado (20) la suma de nodosvariables perforados (20) conectados a tales nodos de comprobación (25) queestán conectados a dicho nodo variable redundante no perforado (20).

公开(公告)号：DE602006019975D1

公开(公告)日：2011-03-17

申请号：DE602006019975

申请日：2006-10-24

Applicant: QUALCOMM INC

Inventor： HOU JILEI ,  SORIAGA JOSEPH B ,  SMEE JOHN EDWARD ,  CHEN JINGHU

IPC: H04B1/707 ,  H04B1/7085 ,  H04B1/7107

公开(公告)号：CA2731510A1

公开(公告)日：2010-02-11

申请号：CA2731510

申请日：2009-08-07

Applicant: QUALCOMM INC

Inventor： HOU JILEI ,  SMEE JOHN E ,  MALLADI DURGA PRASAD ,  HASSANPOUR GHADY NAVID ,  MALLIK SIDDHARTHA

IPC: H04B7/02 ,  H04B7/04

Abstract: Techniques for supporting distributed multiple-input multiple-output (MIMO) transmissions are described. In one design, a user equipment (UE) determines channel estimates for multiple cells and reports the channel estimates. The UE thereafter receives a data transmission sent by the multiple cells to the UE based on the channel estimates. The data transmission may include at least one data stream, and each data stream may be sent by one cell or the multiple cells to the UE. In another design, a UE determines first and second channel estimates for first and second cells, respectively, and reports the channel estimates. The UE then receives a first data transmission sent by the first cell to the UE based on the first channel estimate. The UE also receives a second data transmission sent by the second cell to another UE and steered away from the UE based on the second channel estimate.

公开(公告)号：CA2731098A1

公开(公告)日：2010-02-11

申请号：CA2731098

申请日：2009-08-06

Applicant: QUALCOMM INC

Inventor： HOU JILEI ,  FARAJIDANA AMIR ,  YANG LIN ,  SMEE JOHN E ,  HASSANPOUR GHADY NAVID ,  MALLIK SIDDHARTHA ,  MALLADI DURGA PRASAD

IPC: H04B7/02 ,  H04B7/04

Abstract: Systems and methods for providing coverage to a first cell (104i) through a first antenna system (106i) and coverage to a second cell (104 j) through a second antenna system (106g). Data is also processed for transmission to a mobile device (108i) in the first cell using the first and second antenna systems.

公开(公告)号：AU2005321819B2

公开(公告)日：2009-12-17

申请号：AU2005321819

申请日：2005-12-22

Applicant: QUALCOMM INC

Inventor： TOMASIN STEFANO ,  SMEE JOHN EDWARD ,  PFISTER HENRY DAVID ,  HOU JILEI

IPC: H04B1/707

Abstract: A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.

公开(公告)号：BRPI0519545A2

公开(公告)日：2009-02-17

申请号：BRPI0519545

申请日：2005-12-22

Applicant: QUALCOMM INC

Inventor： SMEE JOHN EDWARD ,  PFISTER HENRY DAVID ,  TOMASIN STEFANO ,  HOU JILEI

IPC: H04B1/707

Abstract: A method is provided comprising generating data samples of received signals; demodulating the data samples to provide recovered symbols; deinterleaving the recovered symbols; decoding the recovered symbols to recover decoded data bits transmitted by an access terminal; encoding, interleaving and modulating the decoded data bits to form samples from the access terminal; and removing or cancelling a contribution of the access terminal from the data samples. Corresponding electronic hardware, software module and storage medium are also provided.

公开(公告)号：BRPI0516098A

公开(公告)日：2008-08-26

申请号：BRPI0516098

申请日：2005-09-20

Applicant: QUALCOMM INC

Inventor： SMEE JOHN EDWARD ,  HOU JILEI ,  KIRAN KIRAN ,  BHUSHAN NAGA ,  ATTAR RAHSID AHMED AKBAR

IPC: H04L1/18 ,  H04B7/26

Abstract: Methods and apparatuses to selectively assign interlace preference factors to a plurality of user terminals to use a plurality of interlaces. These methods and apparatuses may improve capacity compared to a system that allows each user terminal to transmit data in every interlace.

公开(公告)号：NO20073238L

公开(公告)日：2007-09-21

申请号：NO20073238

申请日：2007-06-22

Applicant: QUALCOMM INC

Inventor： SMEE JOHN E ,  HOU JILEI ,  PFISTER HENRY DAVID ,  TOMASIN STEFANO

IPC: H04B7/005 ,  H04B1/707

Abstract: A method and system for interference cancellation (IC). One aspect relates to traffic interference cancellation. Another aspect relates to joint IC for pilot, overhead and data. Another aspect relates to improved channel estimation. Another aspect relates to adaptation of transmit subchannel gains.