公开(公告)号：ZA963188B

公开(公告)日：1996-10-23

申请号：ZA963188

申请日：1996-04-22

Applicant: QUALCOMM INC

Inventor： ZIV NOAM A ,  PADOVANI ROBERTO ,  LEVIN JEFFREY A ,  EASTON KENNETH D

IPC: H04L1/02 ,  H04B1/707 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04L27/30 ,  H04Q7/20 ,  H04B ,  H04J

Abstract: An integrated search processor used in a modem for a spread spectrum communications system buffers receive samples and utilizes a time sliced transform processor operating on successive offsets from the buffer. The search processor autonomously steps through a search as configured by a microprocessor specified search parameter set, which can include the group of antennas to search over, the starting offset and width of the search window to search over, and the number of Walsh symbols to accumulate results at each offset. The search processor calculates the correlation energy at each offset, and presents a summary report of the best paths found in the search to use for demodulation element reassignment. The search is done in a linear fashion independent of the probability that a signal being searched for was transmitted at any given time.

公开(公告)号：ZA9407841B

公开(公告)日：1995-05-18

申请号：ZA9407841

申请日：1994-10-06

Applicant: QUALCOMM INC

Inventor： BLAKENEY ROBERT D II ,  ZIV NOAM A ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A JR ,  WILLIAMSON PAUL T

IPC: H04B1/7087 ,  H04B1/7117 ,  H04B7/08 ,  H04B7/26 ,  H04J ,  H04B ,  H04L

CPC classification number: H04B1/7117 ,  H04B1/7087

公开(公告)号：ZA946674B

公开(公告)日：1995-05-02

申请号：ZA946674

申请日：1994-08-31

Applicant: QUALCOMM INC

Inventor： GARDNER WILLIAM R ,  PADOVANI ROBERTO ,  LAM S KATHERINE ,  JACOBS PAUL E ,  ZIV NOAM A ,  DEJACO ANDREW P

IPC: H04B7/26 ,  H04L1/00 ,  H04L12/00 ,  H04L12/56 ,  H04Q11/04 ,  H04W24/00 ,  H04W28/22 ,  H04B ,  H04L ,  H04Q

Abstract: A method and apparatus are described for controlling the data rates for communications to and from a base station and a plurality of remote users. The usage of the communications resource whether the forward link resource (from base station to remote users) or reverse link resource (from remote users to base station) is measured. The measured usage value is compared against at least one predetermined threshold value and the data rates of communications or a subset of communications on said communications resource is modified in accordance with said comparisons.

公开(公告)号：EP0886985A1

公开(公告)日：1998-12-30

申请号：EP97915932

申请日：1997-03-11

Applicant: QUALCOMM INC

Inventor： ZIV NOAM A ,  TIEDEMANN EDWARD G JR

IPC: H04B7/005 ,  H04B7/26 ,  H04W36/18 ,  H04W52/14 ,  H04W52/16 ,  H04W52/34 ,  H04W52/40 ,  H04Q7/38 ,  H04Q7/32

CPC classification number: H04W52/143 ,  H04W36/18 ,  H04W52/146 ,  H04W52/16 ,  H04W52/40

Abstract: Method and apparatus for providing centralized power control in a communication system, in which each base station (14, 16, 18, 20) in the system operates to control both the forward link and the reverse link power. A radio link manager (22) provides a common threshold for determining the proper power level of the reverse link signal at each base station (14, 16, 18, 20). The radio link manager (22) also provides a ratio of the forward link signal strength to a pilot signal strength to control forward link power control. The radio link manager (22) provides the threshold and ratio uniformly to all base stations (14, 16, 18, 20) to provide a uniform operating point for all base stations (14, 16, 18, 20) in the system, thus, increasing capacity. The same centralized power control is easily expanded to provide a mechanism for intersystem soft handoff.

公开(公告)号：AT524042T

公开(公告)日：2011-09-15

申请号：AT07016429

申请日：1997-03-11

Applicant: QUALCOMM INC

Inventor： ZIV NOAM A ,  TIEDEMANN EDWARD G JR

IPC: H04W52/14 ,  H04B7/005 ,  H04B7/26 ,  H04W36/18 ,  H04W52/16 ,  H04W52/34 ,  H04W52/40

Abstract: In a communications system including a set of base stations (14, 16, 18, 20) in communication with a remote unit (10), a technique is provided for centrally controlling transmission power. In accordance with this technique, a reverse link frame of data is first received from the remote unit (10) at each of the set of base stations (14, 16, 18, 20). The base stations (14, 16, 18, 20) determine a frame quality indication corresponding to the received reverse link frame of data and transmit the frame quality indication to a system controller (22, 24). The system controller (22, 24) then calculates, based on the frame quality indication from each of the set of base stations (14, 16, 18, 20), an aggregated frame quality indication corresponding to the received reverse link frame of data, and based on the aggregated frame quality indication calculates an absolute reverse threshold value. The absolute reverse threshold value is then provided to each of the set of base stations (14, 16, 18, 20), and each of the set of base stations (14, 16, 18, 20) provides a power control command for the remote unit (10) based on a comparison between the frame quality indication determined at the base station and the absolute reverse threshold value.

公开(公告)号：DE69738471T2

公开(公告)日：2008-11-13

申请号：DE69738471

申请日：1997-05-23

Applicant: QUALCOMM INC

Inventor： WEAVER LINDSAY A ,  MUNSINGER DAVID B ,  PADOVANI ROBERTO ,  ZIV NOAM A ,  KARMI GADI ,  GILHOUSEN KLEIN S

IPC: H04W24/02 ,  H04W36/14

Abstract: The cellular communication system includes a number of base stations through which a mobile unit communicates. The mobile unit maintains a list of active base stations with which it can communicate. One of the active stations is in communication with the mobile and uses this communication to measure the round-trip-delay between mobile and station. This delay is compared with a threshold and if this is exceeded, and the base station is a boundary station, then a hard hand-off is executed. The mobile can also monitor candidate base stations and if a triggering pilot signal is detected a hand-off can be triggered. Preferably the handoff can be between base stations controlled by different mobile switching centres.

公开(公告)号：DE69737829D1

公开(公告)日：2007-08-02

申请号：DE69737829

申请日：1997-05-01

Applicant: QUALCOMM INC

Inventor： LEE KUO-CHUN ,  KARMI GADI ,  MOHANTY BIBHU ,  SUTTON TODD R ,  ZIV NOAM A

IPC: H04W36/14 ,  H04W36/18

Abstract: A method and apparatus for performing an inter-system soft handoff is described. In accordance with the present invention, when a subscriber unit crosses from a first cellular system to a second cellular system, a base station controller determines if sufficient network resources are available to conduct a inter-system soft handoff. If so, the base station controller generates a set of signaling messages that cause call processing resource to be allocated and for the call to be processed at the second cellular system. The base station controller then perform data-selection and data-broadcast for the call by transmitting data to the subscriber unit by way of the second cellular system as well as via one or more base stations to which the base station controller is directly coupled. The determination as to whether sufficient network resources are available to conduct the inter-system soft handoff is based on the type of connection that exists between the first cellular system and the second cellular system, the number of inter-system calls being conducted, and the frame offset of the call currently being processed.

公开(公告)号：ES2236754T3

公开(公告)日：2005-07-16

申请号：ES96936087

申请日：1996-09-30

Applicant: QUALCOMM INC

Inventor： ZIV NOAM A ,  ROBBINS BARRY

IPC: H04L12/56 ,  H04M3/428 ,  H04M3/56 ,  H04W28/06 ,  H04W40/02 ,  H04W76/02 ,  H04W88/18 ,  H04Q7/38 ,  H04Q7/30

Abstract: SE DESCRIBE UN METODO Y SISTEMA PARA PROCESAR LLAMADAS TELEFONICAS DENTRO DE UNA RED TELEFONICA INALAMBRICA DIGITAL (101). DURANTE LA INICIACION DE UNA LLAMADA TELEFONICA DESDE UNA UNIDAD DE ABONADO INALAMBRICA (100), SE DETERMINA SI LA UNIDAD DE ABONADO RECEPTORA (100, 106) ES TAMBIEN PARTE DE UNA RED TELEFONICA INALAMBRICA DIGITAL QUE TIENE CAPACIDAD DE CODIFICACION VOCAL COMPATIBLE. SI ES ASI, LOS DATOS DE CODIFICACION VOCAL PROCEDENTES DE LA RED TELEFONICA INALAMBRICA DIGITAL (101) SON CONVERTIDOS EN TONOS QUE SON INTRODUCIDOS EN UNA RED TELEFONICA ALAMBRICA PARA EL ENCAMINAMIENTO A LA RED TELEFONICA INALAMBRICA DIGITAL RECEPTORA APROPIADA. CUANDO ESTOS TONOS SON RECIBIDOS POR LA RED TELEFONICA INALAMBRICA DIGITAL RECEPTORA (101), LOS DATOS DE CODIFICACION VOCAL SON GENERADOS DE NUEVO TOMANDO COMO BASE LOS TONOS Y, A CONTINUACION, SON TRANSMITIDOS A LA UNIDAD DE ABONADO RECEPTORA (100). SI LAS UNIDADES DE ABONADO INALAMBRICAS DE ORIGEN Y RECEPTORA SON PARTE DE LA MISMA RED TELEFONICA INALAMBRICA DIGITAL (101), LOS PASOS DE CONVERSION A TONOS Y LA INTRODUCCION EN LA RED TELEFONICA ALAMBRICA SON OMITIDOS, Y LA LLAMADA ES ENCAMINADA COMPLETAMENTE DENTRO DE LA RED TELEFONICA INALAMBRICA DIGITAL. EN OTRA INCORPORACION DE LA INVENCION, EL PASO DE LA CONVERSION A TONOS SE OMITE POR COMPLETO Y LOS DATOS DE CODIFICACION VOCAL SON PASADOS ENTRE LAS DOS REDES TELEFONICAS INALAMBRICAS DIGITALES A TRAVES DE UNA CONEXION TOTALMENTE DIGITAL COMO UNA RED DE PAQUETES ATM (104) O UNA CONEXION TELEFONICA ALAMBRICA (108) EN LA QUE LA INTEGRIDAD DE LA INFORMACION DIGITAL ESTA ASEGURADA. CUANDO UNA COMUNICACION COLECTIVA ES INICIADA POR UNA DE LAS UNIDADES DE ABONADO INALAMBRICAS (100) QUE PARTICIPA EN LA LLAMADA TELEFONICA, LOS DATOS PROCEDENTES DE LAS UNIDADES DE ABONADO INALAMBRICAS (100) SON DESCODIFICADOS Y COLOCADOS EN FORMATO ANALOGICO DE FORMA QUE PUEDAN SUMARSE. ADEMAS, LOS RECURSOS DEL PROCESAMIENTO DE SEÑALES (210) SON ASIGNADOS PARA LA LLAMADA SI LAS DOS UNIDADES DE ABONADO INALAMBRICAS ORIGINALES SON PARTE DE LA MISMA PARTE DE LA MISMA RED TELEFONICA INALAMBRICA DIGITAL (101). CUANDO LA CARACTERISTICA DE LLAMADA EN ESPERA ES ACTIVADA POR UNA UNIDAD DE ABONADO INALAMBRICA (100) QUE PARTICIPA EN UNA LLAMADA TELEFONICA CON OTRA UNIDAD DE ABONADO INALAMBRICA (100), SE ASIGNAN, TAMBIEN, RECURSOS DE PROCESAMIENTO DE SEÑALES ADICIONALES PARA LOS DATOS DE LLEGADA Y DE SALIDA ASOCIADOS A LA SEGUNDA LLAMADA, DE FORMA QUE PUEDAN PROCESARSE CORRECTAMENTE.

公开(公告)号：CA2248833C

公开(公告)日：2005-07-12

申请号：CA2248833

申请日：1997-03-11

Applicant: QUALCOMM INC

Inventor： ZIV NOAM A ,  TIEDEMANN EDWARD G JR

IPC: H04B7/005 ,  H04B7/26 ,  H04W36/18 ,  H04W52/14 ,  H04W52/16 ,  H04W52/34 ,  H04W52/40 ,  H04Q7/38

Abstract: Method and apparatus for providing centralized power control in a communication system, in which each base station (14, 16, 18, 20) in the system operates to control both the forward link and the reverse link power. A radio link manager (22) provides a common threshold for determining the proper power level of the reverse link signal at each base station (14, 16, 18, 20). The radio link manager (22) also provides a ratio of the forward link signal strength to a pilot signal strength to control forward link power control. The radio link manager (22) provides the threshold and ratio uniformly to all base stations (14, 16, 18, 20) to provide a uniform operating point for all base stations (14, 16, 18, 20) in the system, thus, increasing capacity. The same centralized power control is easily expanded to provide a mechanism for intersystem soft handoff.

公开(公告)号：ES2215166T3

公开(公告)日：2004-10-01

申请号：ES94932118

申请日：1994-10-28

Applicant: QUALCOMM INC

Inventor： BLAKENEY ROBERT D II ,  WEAVER LINDSAY A JR ,  ZIV NOAM A ,  WILLIAMSON PAUL T ,  PADOVANI ROBERTO

IPC: H04B1/7087 ,  H04B1/7117 ,  H04B7/08 ,  H04B7/26 ,  H04J13/00

Abstract: In a receiver having a plurality of demodulation elements, a method of assigning the plurality of demodulation element so a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements, at least one searcher element, and a controller.