公开(公告)号：BRPI0614979A2

公开(公告)日：2011-04-26

申请号：BRPI0614979

申请日：2006-08-18

Applicant: QUALCOMM INC

Inventor： UMATT BHUPESH MANOHARLAL ,  AMERGA MESSAY ,  MITTAL VINEET

IPC: H04W48/18

公开(公告)号：DE602006017086D1

公开(公告)日：2010-11-04

申请号：DE602006017086

申请日：2006-08-08

Applicant: QUALCOMM INC

Inventor： AMERGA MESSAY ,  UMATT BHUPESH MANOHARLAL ,  MITTAL VINEET

IPC: H04M1/73 ,  H04B1/16 ,  H04W52/28 ,  H04W88/02

公开(公告)号：DE60232256D1

公开(公告)日：2009-06-18

申请号：DE60232256

申请日：2002-09-18

Applicant: QUALCOMM INC

Inventor： CHEN JIANGXIN ,  NEUFELD ARTHUR ,  GLAZKO SERGUEI ,  AMERGA MESSAY

IPC: H04W68/02 ,  H04W52/02 ,  H04W68/00 ,  H04W72/08

Abstract: A quick paging channel (QPCH) is used to receive paging indicators that indicate that a wireless communication device (WCD) has a message on a paging channel relating to, for example, an incoming call to the WCD. When the condition of the quick paging channel is too low to receive paging indicators reliably, the quick paging channel is disabled to avoid false alarms, and the slotted paging channel is used to receive paging messages without monitoring the QPCH. When the QPCH signal is strong, the probability of false alarms is lower, and the quick paging channel is enabled. By using the quick paging channel to receive paging indicators only when the QPCH signal is strong, the wireless communication device can remain in a sleep state for greater periods of time as compared with the use of a slotted paging channel. As a result, standby time may be significantly improved.

公开(公告)号：ES2302929T3

公开(公告)日：2008-08-01

申请号：ES03728999

申请日：2003-05-15

Applicant: QUALCOMM INC

Inventor： AMERGA MESSAY ,  RICK ROLAND

IPC: H04B1/707 ,  G01S1/00 ,  G01S19/22 ,  H04B1/00 ,  H04B7/26

Abstract: Un sistema (100) para la corrección de errores de multitrayectoria en un dispositivo de telecomunicación, que comprende: medios (116) para analizar señales recibidas para determinar un nivel de señal de correlación en puntos en el tiempo predeterminados; medios (116) para determinar un nivel de señal máximo en uno seleccionado de los puntos en el tiempo predeterminados; medios (120) de análisis para generar un modelo (122) matemático de una función de respuesta predeterminada utilizando el nivel de señal máximo y los niveles de señal de correlación de puntos en el tiempo predeterminados adyacentes al tiempo seleccionado, utilizando los medios de análisis el modelo matemático para determinar una ubicación de pico real y un ancho de pulso asociados con la función de respuesta predeterminada y aplicando un factor de corrección a un tiempo de llegada basándose en el ancho de pulso para generar un tiempo de llegada corregido.

公开(公告)号：AU2002359343B2

公开(公告)日：2008-02-21

申请号：AU2002359343

申请日：2002-11-01

Applicant: QUALCOMM INC

Inventor： FERNANDEZ-CORBATION IVAN ,  RICK ROLAND R ,  STEIN JEREMY M ,  AMERGA MESSAY

IPC: G01S1/00 ,  G01S5/02 ,  G01S19/29 ,  G01S19/30 ,  H04B1/7075 ,  H04B1/7117 ,  H04Q7/34 ,  H04Q7/38

Abstract: A parameter estimator for estimating one or more parameter(s) from a signal is described. A correlation function is derived from the signal, and the correlation function analyzed to determine if one or more first peak(s) are present, and, if so, distinguishable from the sidelobe(s) of a second peak. If the one or more first peak(s) are present and distinguishable from the sidelobe(s) of the second peak, the one or more parameter(s) are estimated from the one or more first peak(s). If the one or more first peak(s) are not present, or, if present, are not distinguishable from the sidelobe(s) of the second peak, the one or more parameter(s) are estimated from the second peak. The parameter estimator may be employed in a subscriber station to estimate a parameter such as the time of arrival of one or more base station or sector pilot signals in a wireless communication system. This information may be utilized in an overall advanced forward link trilateration (AFLT) process for estimating the location of the subscriber station.

公开(公告)号：BRPI0511278A

公开(公告)日：2007-12-04

申请号：BRPI0511278

申请日：2005-05-19

Applicant: QUALCOMM INC

Inventor： AMERGA MESSAY ,  EMANI CHALAPATHI RAO

IPC: H04W24/00 ,  H04W36/30 ,  H04W48/16 ,  H04W52/02 ,  H04W88/08

Abstract: For cell measurement, a wireless device categorizes cells whose identities are known to the device into multiple sets. The wireless device may obtain these cells from the system via signaling and/or detect these cells via searches. Different sets of cells may be associated with different levels of importance (e.g., for handoff), require different amounts of processing for measurements, and so on. Each set is associated with a particular measurement rate. Cells deemed to be more important (e.g., for handoff) are measured more frequently. Cells deemed to be less important and/or require more processing for measurements (e.g., cells with unknown timing) are measured less frequently. The wireless device performs searches and makes measurements for the cells in each set at the measurement rate selected for that set.

公开(公告)号：AU2002316645B2

公开(公告)日：2007-11-01

申请号：AU2002316645

申请日：2002-07-12

Applicant: QUALCOMM INC

Inventor： JOSHI ABHAY A ,  LEVIN MARK ,  AMERGA MESSAY

IPC: H04B1/00 ,  H04B1/7117 ,  H04B7/08 ,  H04B7/26

Abstract: A method for assigning tracking elements includes sorting a list of potential assignments according to a diversity criterion. In one example, a list of received signal instances is sorted first according to a measure of energy and then sorted again according to the diversity criterion. In a further embodiment, a demodulation element may be labeled available for assignment yet continue to output demodulated symbols in a locked state. Applications to a mobile station of a CDMA system for cellular telephony are discussed.

公开(公告)号：DE60305655T2

公开(公告)日：2007-05-03

申请号：DE60305655

申请日：2003-02-27

Applicant: QUALCOMM INC

Inventor： TEAGUE EDWARD HARRISON ,  AMERGA MESSAY ,  LIN JEREMY ,  SHIU DA-SHAN

IPC: H04B1/00 ,  H04B1/707

Abstract: Techniques for tracking closely spaced multipath and preventing finger merge without monitoring relative positions between each of a plurality of fingers are disclosed. In one aspect, motion limits are determined for each finger. Time-tracking commands that would move the position of a finger outside its respective motion limits are suppressed. In another aspect, motion limits are updated dynamically, the motion limits of each finger determined in accordance with the motion limits of fingers adjacent to it. Various other aspects are also presented. These aspects have the benefit of preventing finger merge, which allows the allocation of multiple fingers to closely spaced multipath, thus increasing performance and system capacity, and mitigating misallocation of system resources.

公开(公告)号：CA2619949A1

公开(公告)日：2007-02-22

申请号：CA2619949

申请日：2006-08-18

Applicant: QUALCOMM INC

Inventor： MITTAL VINEET ,  AMERGA MESSAY ,  UMATT BHUPESH MANOHARLAL

IPC: H04W48/18

公开(公告)号：AU2002248154B2

公开(公告)日：2006-06-15

申请号：AU2002248154

申请日：2001-11-14

Applicant: QUALCOMM INC

Inventor： RICK ROLAND ,  AMERGA MESSAY ,  PATRICK CHRISTOPHER ,  ROWITCH DOUGLAS N ,  YOUNIS SAED

IPC: G01S1/00 ,  G01S19/25 ,  H04B7/26 ,  H04W64/00

Abstract: Techniques to detect whether or not a remote terminal is under the coverage of a repeater within a wireless communication network, which may be based on (1) a list of base stations expected to be received while under the repeater's coverage, (2) the characterized environment of the repeater, and/or (3) the propagation delays for a transmission received at the remote terminal. Additional ambiguity resulting from being under a repeater's coverage may also be accounted for and/or compensated by (1) discarding time measurements from repeated base stations, (2) adjusting the processing for position estimation to account for the additional ambiguity due to the repeater, (3) computing a series of position estimates based on multiple transmissions received from the same originating base station and selecting the best estimate, and/or (4) computing a series of position estimates based on multiple transmissions from multiple originating base stations and selecting the best estimate.