公开(公告)号：AT475896T

公开(公告)日：2010-08-15

申请号：AT00993076

申请日：2000-12-07

Applicant: QUALCOMM INC

Inventor： FERNANDEZ-CORBATON IVAN ,  VAYANOS ALKINOOS ,  AGASHE PARAG ,  SOLIMAN SAMIR

IPC: G01S19/12 ,  G01S19/03 ,  G01S19/11 ,  H04Q7/34

Abstract: A method and apparatus for use in a hybrid position location system. The method and apparatus combines measurements from Global Positioning System (GPS) and terrestrial transceiver stations to compute the location of a device. An algebraic solution to hybrid position location system equations is output from the method and apparatus. The method and apparatus determines the position of a device using a non-iterative method, as against the use of a conventional iterative least mean square method. The method of the present invention can be used to solve the location system equations in scenarios where a non-iterative solution is desirable. In certain scenarios, the location system equations may have two possible solutions. An iterative method would converge on one of the solutions, without any indication of the existence of the other ambiguous solution. Moreover, the iterative method may converge on the incorrect of the two ambiguous solutions. Use of the presently disclosed method and apparatus yields both the ambiguous solutions. The disclosed method may be followed up with iterative methods, using the solutions from the algebraic method as initial estimates of the device location for the iterative method. A different process can then select the correct solution. Thus, the algebraic method can be used to detect the existence of ambiguous solutions, and to find both solutions.

公开(公告)号：AT470280T

公开(公告)日：2010-06-15

申请号：AT07014931

申请日：2002-01-16

Applicant: QUALCOMM INC

Inventor： VAYANOS ALKINOOS ,  GRILLI FRANCESCO ,  LI PENG

IPC: H04B7/26 ,  H04J1/00 ,  H04J99/00 ,  H04L1/00 ,  H04L29/06 ,  H04Q7/38

Abstract: A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities, available transport format combinations (TFCs), and transmission time interval (TTI) constraints of transport frames within the TFCs is disclosed. A subscriber unit (12) has applications that produce separate data streams. Example applications include voice (32), signalling (34), E-mail (36) and web applications (38). The data streams are combined by a multiplexer module (48) into one data stream called the transport stream (50). The transport stream (50) is sent over the reverse link to base station transceivers (BTS) (14). The multiplexer module (48) multiplexes the data streams onto a single stream according to available TFCs, TTI constraints, data stream priorities, and current maximum transmitter power constraints.

公开(公告)号：AT408934T

公开(公告)日：2008-10-15

申请号：AT02778610

申请日：2002-10-18

Applicant: QUALCOMM INC

Inventor： MALLADI DURGA ,  VAYANOS ALKINOOS

IPC: H04B7/005 ,  H04J13/00 ,  H04B7/00 ,  H04B7/26

Abstract: A method and apparatus provides for efficient use of communication resources in a CDMA communication system (100) by selecting, at a time prior to a first time period (401), a first mobile station to receive transmission during the first time period (401) on a downlink shared channel, and selecting, at a time prior to the first time period (401), a second mobile station to receive transmission during a second time period (402) on the downlink shared channel. Transmission power level of a downlink shared control channel is determined for transmission to the second mobile station during an overlapping time period (403) with the first time period (401), and the transmission power level of the downlink shared channel for transmission during the first time period (401) is determined based on at least the determined transmission power level of the downlink shared control channel during the overlapping time period (403).

公开(公告)号：AT357091T

公开(公告)日：2007-04-15

申请号：AT02720838

申请日：2002-01-16

Applicant: QUALCOMM INC

Inventor： VAYANOS ALKINOOS ,  GRILLI FRANCESCO ,  LI PENG

IPC: H04B7/26 ,  H04J1/00 ,  H04J99/00 ,  H04L1/00 ,  H04L29/06 ,  H04Q7/38

Abstract: A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities, available transport format combinations (TFCs), and transmission time interval (TTI) constraints of transport frames within the TFCs is disclosed. A subscriber unit (12) has applications that produce separate data streams. Example applications include voice (32), signalling (34), E-mail (36) and web applications (38). The data streams are combined by a multiplexer module (48) into one data stream called the transport stream (50). The transport stream (50) is sent over the reverse link to base station transceivers (BTS) (14). The multiplexer module (48) multiplexes the data streams onto a single stream according to available TFCs, TTI constraints, data stream priorities, and current maximum transmitter power constraints.

公开(公告)号：AU2002251812B2

公开(公告)日：2006-08-17

申请号：AU2002251812

申请日：2002-01-16

Applicant: QUALCOMM INC

Inventor： GRILLI FRANCESCO ,  LI PENG ,  VAYANOS ALKINOOS

IPC: H04J3/00 ,  H04B7/26 ,  H04J1/00 ,  H04J99/00 ,  H04L1/00 ,  H04L29/06 ,  H04Q7/38

Abstract: A method and system that enables multiplexing a plurality of data streams onto one data stream based on data stream priorities, available transport format combinations (TFCs), and transmission time interval (TTI) constraints of transport frames within the TFCs is disclosed. A subscriber unit (12) has applications that produce separate data streams. Example applications include voice (32), signalling (34), E-mail (36) and web applications (38). The data streams are combined by a multiplexer module (48) into one data stream called the transport stream (50). The transport stream (50) is sent over the reverse link to base station transceivers (BTS) (14). The multiplexer module (48) multiplexes the data streams onto a single stream according to available TFCs, TTI constraints, data stream priorities, and current maximum transmitter power constraints.

公开(公告)号：CA2439880A1

公开(公告)日：2002-09-12

申请号：CA2439880

申请日：2002-03-01

Applicant: QUALCOMM INC

Inventor： GAAL PETER ,  VAYANOS ALKINOOS

IPC: G01S19/06 ,  G01S1/00 ,  G01S5/14 ,  G01S19/01 ,  G01S19/08 ,  G01S19/11 ,  G01S19/40 ,  G01S1/02

Abstract: Techniques for determining the location of a device based on an initial coar se position estimate for the device, which is derived based on initial (less accurate) estimates of the position of a plurality of transmitters. In one method, the coarse position estimate for the device and revised (more accurate) position estimates for the transmitters are received. A revised position estimate for the device is initialized (e.g., to the coarse positio n estimate). An update vector is next computed based on the initial and revise d position estimates for the device and the initial and revised position estimates for the transmitters. The revised position estimate for the device is then updated based on the update vector. The computation for the update vector and the updating of the revised position estimate for the device can be repeated a number of times to achieve a more and more accurate estimate.

公开(公告)号：AT557300T

公开(公告)日：2012-05-15

申请号：AT10004135

申请日：2000-02-14

Applicant: QUALCOMM INC

Inventor： AGASHE PARAG A ,  VAYANOS ALKINOOS ,  SOLIMAN SAMIR

IPC: G01S19/05 ,  G01S19/27 ,  G01S1/00 ,  G01S5/00 ,  G01S19/48 ,  H04Q7/34

Abstract: A method and apparatus for efficiently transmitting location assistance information to a mobile communication device over a control channel with a minimal impact on the capacity of the control channel. A position location server provides a difference between satellite locations which have been computed using Almanac data and then Ephemeris data. Sending only the difference between the locations and clock corrections computed using the two different data types, the total amount of information to be transmitted to a mobile communication device is significantly reduced. Furthermore, by providing rate of change information, the method and apparatus allows the location assistance information to remain valid for a relatively long time after it is has been received by the mobile communication device.

公开(公告)号：ES2360280T3

公开(公告)日：2011-06-02

申请号：ES02705891

申请日：2002-01-17

Applicant: QUALCOMM INC

Inventor： VAYANOS ALKINOOS ,  GAAL PETER

IPC: G01S19/20 ,  G01S19/40 ,  G01S1/00 ,  G01S5/14 ,  G01S19/09 ,  G01S19/25 ,  G01S19/27

Abstract: Un procedimiento para identificar la posición de un dispositivo (201) operable para recibir señales procedentes de un transmisor (203), que comprende: a) recibir (401), en un dispositivo (207) de identificación de la posición, una estimación de la posición aproximada para el dispositivo (201), y b) recibir, en el dispositivo (207) de identificación de la posición, información que identifica datos utilizados para calcular la estimación de la posición aproximada, caracterizado por: c) calcular (407) un error (215) de pseudoalcance al proyectar un vector (209) de error de la posición del transmisor formado entre un primer punto (203) y un segundo punto (205) sobre un vector unitario (211) definido a partir del primer punto (203) en la dirección de un tercer punto, en el que el primer punto (203) es una primera estimación de la posición del transmisor, el segundo punto (205) es una segunda estimación de la posición del transmisor, y el tercer punto es una estimación de la posición del dispositivo (201), de la posición del dispositivo (207) de identificación de la posición, o de la posición de una estación base con la que está en comunicación el dispositivo (201); y d) aplicar (409) el error (215) de pseudoalcance a un algoritmo de estimación lineal para calcular una desviación (δû) a partir de la estimación de la posición aproximada y para identificar una estimación más precisa de la posición.

公开(公告)号：ES2356626T3

公开(公告)日：2011-04-11

申请号：ES03734030

申请日：2003-05-13

Applicant: QUALCOMM INC

Inventor： VAYANOS ALKINOOS ,  MALLADI DURGA ,  HO SAI YIU DUNCAN

IPC: H04L1/18 ,  H03M13/00 ,  H04B7/216 ,  H04L12/28 ,  H04Q7/38

Abstract: Un procedimiento para suministrar datos recuperados por una entidad híbrida de retransmisión automática (HARQ) en el orden adecuado a las capas superiores en un sistema de comunicación CDMA, que comprende: recibir paquetes de la entidad HARQ, caracterizado por las etapas de: detectar paquetes faltantes entre los paquetes recibidos; demorar la entrega de los paquetes recibidos después de los paquetes faltantes detectados; determinar si cada paquete faltante está o recibido posteriormente desde la entidad HARQ o perdido, eliminando sucesivamente los canales HARQ que puedan usarse para enviar el paquete faltante; y entregar los paquetes recibidos, demorados por cada paquete faltante, después de que se determina que el paquete faltante está perdido o ha sido recibido desde la entidad HARQ.

公开(公告)号：AT493809T

公开(公告)日：2011-01-15

申请号：AT03734030

申请日：2003-05-13

Applicant: QUALCOMM INC

Inventor： VAYANOS ALKINOOS ,  MALLADI DURGA ,  HO SAI YIU DUNCAN

IPC: H04L1/18 ,  H03M13/00 ,  H04B7/216 ,  H04L12/28 ,  H04Q7/38

Abstract: Techniques for delivering data recovered by an HARQ entity in proper order to higher layers in a CDMA system. In a method, packets are received from the HARQ entity by the re-ordering entity and missing packets among the received packets are detected. Packets may be transmitted in a sequential order based on transmission sequence numbers (TSNs) assigned to the packets, and missing packets may be detected based on the TSNs of the received packets. Delivery of received packets later than the missing packets are stalled because higher layers expect data in-order. A determination is thereafter made whether each missing packet is (1) subsequently received from the HARQ entity or (2) lost, by successively eliminating HARQ channels that may be used to send the missing packet. Received packets previously stalled by each missing packet are delivered after the missing packet is determined to be lost or received.