公开(公告)号：MXPA02009420A

公开(公告)日：2003-04-10

申请号：MXPA02009420

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN

IPC: H03M13/23 ,  H03M13/25 ,  H03M13/41 ,  H04L1/00

Abstract: Un metodo y aparato para mejorar el rendimiento de un decodificador convolucional utilizado en un sistema de comunicacion de modo ranurado. En un sistema de comunicacion de modo ranurado tipico, una corriente de simbolos convolucionalmente codificada continuamente se transmite por una estacion base. Una unidad remota, que comprende un decodificador convolucional para decodificar la corriente de simbolos periodicamente transita entre estados activo e inactivo. Mientras se encuentra en el estado inactivo, la unidad remota pierde una porcion de la corriente continua de simbolos. Despues de la interrupcion de la corriente de simbolos, las metricas de estado dentro de una cuadricula dentro del decodificador se inician. La iniciacion de las metricas de estado puede ser tal que el proceso de decodificacion se desviara hacia solamente estados validos y alejarse de estados invalidos. Ademas, la iniciacion puede ser tal que no existe una desviacion hacia ningun estado particular dentro de la cuadricula.

公开(公告)号：AU5118701A

公开(公告)日：2001-10-15

申请号：AU5118701

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： NEUFELD ARTHUR JAMES ,  BAYLEY GWAIN

IPC: H03M13/23 ,  H03M13/25 ,  H03M13/41 ,  H04L1/00

Abstract: A method and apparatus for improving the performance of a convolutional encoder used in a slotted mode communication system. In a typical slotted mode communication system a stream of continuously convolutionally encoded symbols is transmitted by a base station. A remote unit, comprising a convolutional decoder to decode the stream of symbols periodically transits between active and inactive states. While in the inactive state the remote unit misses a portion of the continuous stream of symbols. Following the interruption of the stream of symbols, the state metrics of a trellis within the decoder are initialized. Initialization of the state metrics may be such that the decoding process will be biased towards only valid states and away from invalid states. In addition, the initialization may be such that there is not a bias towards any particular state within the trellis.

公开(公告)号：CA2403996A1

公开(公告)日：2001-10-11

申请号：CA2403996

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN

IPC: H04B1/16 ,  H04W52/02 ,  H04W68/00 ,  H04Q7/38 ,  H04Q7/32

Abstract: A method of and an apparatus for reducing the average power consumption in a remote unit in a wireless communication system. When a remote unit in a slotted mode communication system enters an active state, it receives a sequence of messages. One element of this sequence is a general paging message that command the remote unit to return to the inactive state immediately, thus conserving battery power. The general paging message is followed by several additional elements in the sequence. When the remote unit operates in a poor signal-to-noise ratio environment, for example, it may not receive the general paging message and may, thus, unnecessarily remain in the active state until the end of its assigned slot, wasting battery power. The invention determines whether the element received by the remote unit is a general paging message. If so, the remote unit enters the inactive mode. If not, the invention determines whether the element occurs after a general paging message in the sequence of messages. If so, the remote unit enters the inactive mode without waiting for the end of the assigned slot.

公开(公告)号：CA2403858A1

公开(公告)日：2001-10-11

申请号：CA2403858

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN ,  HUGHES ROBBIN

IPC: H04B1/7075 ,  H04B17/00 ,  H04W48/20 ,  H04B7/02 ,  H04Q7/38 ,  H04B1/707

Abstract: A method and apparatus for improving searching in a remote unit of a slotted mode, wireless, communication system. In a slotted mode communication system, the remote unit is in an "active state" during its assigned slot. While in the active state, a controller in the remote unit passes selected sets of search parameters to a search engine. The integration interval of the searches performed is based on the measured signal strength of another base station. The search engine performs searches using the integration interval. Searching continues as long as the remote unit is in the active state. When the remote unit enters the inactive state, searching ceases.

公开(公告)号：HK1034008A1

公开(公告)日：2001-10-05

申请号：HK01104628

申请日：2001-07-05

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN

IPC: H04W24/02 ,  H04B1/16 ,  H04B1/7075 ,  H04B7/26 ,  H04L7/00 ,  H04W52/02 ,  H04B ,  H04Q

Abstract: A method and circuit for adaptively determining a pilot signal reacquisition time. A searcher subsystem measures a phase of the pilot signal. A control processor measures a magnitude of a shift in the pilot signal phase, compares the measured magnitude to a shift threshold, and decreases the reacquisition time if the measured magnitude is not greater than the shift threshold. The control processor also may compare the reacquisition time to a minimum reacquisition time, and decrease the reacquisition time only if the reacquisition time is greater than the minimum reacquisition time. Additionally, the control processor may increase the reacquisition time to a maximum reacquisition time if the measured magnitude is greater than said shift threshold.

公开(公告)号：AU697734B2

公开(公告)日：1998-10-15

申请号：AU5432396

申请日：1996-03-19

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A JR ,  BAYLEY GWAIN ,  TIEDEMANN EDWARD G JR ,  GILHOUSEN KLEIN S

IPC: H04W36/14 ,  H04Q7/38

公开(公告)号：ZA966506B

公开(公告)日：1998-03-09

申请号：ZA966506

申请日：1996-07-31

Applicant: QUALCOMM INC

Inventor： WEAVER JR LINDSAY A ,  TIEDEMANN JR EDWARD G ,  BAYLEY GWAIN ,  GILHOUSEN KLEIN S

IPC: H04W36/14 ,  H04B ,  H04J ,  H04L ,  H04Q

公开(公告)号：AU679592B2

公开(公告)日：1997-07-03

申请号：AU1055995

申请日：1994-11-14

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN ,  GROB MATTHEW S ,  KARMI GADI ,  KIMBALL ROBERT H ,  PROPACH DAVID S

IPC: H04M11/00 ,  H04W76/04 ,  H04Q7/22 ,  H04Q7/32 ,  H04M11/06

Abstract: A method of invoking and canceling voice and data service between a mobile unit and a base station. Using a standard telephone system, the connection for a voice service and a data service is the same. With the introduction of the digital wireless link, the voice connection and the data connection are different. Therefore new dialing commands which indicate the intent of the connection are created. These commands can also be used to designate the intent of the call from a mobile unit capable of data and voice service but not capable of simultaneous voice and data service. They can also be used to invoke simultaneous voice and data services.

公开(公告)号：AR000234A1

公开(公告)日：1997-05-28

申请号：AR33445895

申请日：1995-11-30

Applicant: QUALCOMM INC

Inventor： TIEDEMANN EDWARD ,  JOU YU-CHEUM ,  WEAVER LINDSAY JR ,  BAYLEY GWAIN

IPC: H04L1/00 ,  H04B3/46 ,  H04B7/26 ,  H04B17/00 ,  H04L1/20 ,  H04L1/24 ,  H04L27/00 ,  H04L69/40 ,  H04M3/24 ,  H04Q7/34

Abstract: La invención se refiere a un método para evaluar la calidad de transmisión de un canal de comunicación digital y a un aparato para llevar a la práctica elmismo. La invención está destinada a ser incorporada. Actualmente para evaluar el desempeno desistemas de comunicación digital bajo condiciones realistas, unnúmero seleccionado de unidades de abonados puede ser desplegado en varias distancias desde muchas estaciones base para estimar niveles de interferencia yde este modo se procede a ajustar el nivel de energía transmitida para mejorar la calidad. Estos métodos de evaluación no resultan eficaces debido a lasinterferencias que unen una estación de base y las unidades del abonado dentro de una célula dada cuando usan canales adyacentes con aquellos usados dentro dela célula. Para solucionar este problema la invención propone transmitir que es recibida en una estación receptora, dentro de la cual se genera también unaréplica de la secuencia de prueba de datos digitales. La exactitud de la transmisión a través del canal de comunicación es luego determinada comparandola réplica de la secuencia de prueba con la secuencia de prueba de los datos recibidos a través del canal de comunicación. La invención permite que lasecuencia de prueba de los datos digitales se transmita a uno de un conjunto de valores de datos conocidos, con la estación base dispuesta para identificar elvalor de datos asociados con cada secuencia de prueba de datos digitales. Una transmisiónde ejecución preferida de la secuencia de prueba incluyela generación de una primera pluralidad de paquetes de datos, que colectivamente comprenden la secuencia de prueba de datos digitales.

公开(公告)号：BR9408065A

公开(公告)日：1996-12-24

申请号：BR9408065

申请日：1994-11-14

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN ,  GROB MATTHEW S ,  KARMI GADI ,  KIMBALL ROBERT ,  PROPACH DAVID S

IPC: H04M11/00 ,  H04W76/04 ,  H04Q7/22 ,  H04Q7/32 ,  H04M11/06

Abstract: A method of invoking and canceling voice and data service between a mobile unit and a base station. Using a standard telephone system, the connection for a voice service and a data service is the same. With the introduction of the digital wireless link, the voice connection and the data connection are different. Therefore new dialing commands which indicate the intent of the connection are created. These commands can also be used to designate the intent of the call from a mobile unit capable of data and voice service but not capable of simultaneous voice and data service. They can also be used to invoke simultaneous voice and data services.