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公开(公告)号：HK1026798A1
公开(公告)日：2000-12-22
申请号：HK00105875
申请日：2000-09-19
Applicant: QUALCOMM INC
Inventor： BENDER PAUL E , ZIV TONI L , KARMI GADI , LEE KUO-CHUN , LUEDER SUZANNE M , MOHANTY BIBHU P , OTTINGER ROBERT C , QUICK ROY F , STACHWICK STEVEN P , SUTTON TODD , TANGIRALA VENKAT , ZIV NOAM A
Abstract: A method and apparatus for operating a cellular telephone system that supports performing an inter-system soft handoff is described. A subscriber unit generates a pilot strength measurement report when the pilot channel from a base station is detected. When a base station controller receiving the pilot strength measurement report determines that the base station is part of a second cellular telephone system, a inter-system soft handoff request is generated. An admission control subsystem receives the inter-system soft handoff and either grants or denies the request base on the traffic level with the second cellular telephone system. In a preferred embodiment of the invention, the traffic level is determined based on link load messages received periodically by the admission control subsystem that are generated by an interface port coupled to an interconnect between the first cellular telephone system and the second cellular telephone system. The link load message include peak queue length and average frame rate information.
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公开(公告)号：HK1015210A1
公开(公告)日：1999-10-08
申请号：HK98116169
申请日：1998-12-28
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 , H04J
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.
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公开(公告)号：BR9709337A
公开(公告)日：1999-08-10
申请号：BR9709337
申请日：1997-05-22
Applicant: QUALCOMM INC
Inventor： WEAVER LINDSEY A JR , ZIV NOAM A , HOLCMAN TONI L , MUNSINGER DAVID B , BAKER KENNETH R
Abstract: In a communications network, a network user communicates using a remote unit with another user via at least one base station. The network is comprised of first and second mobile switching control stations respectively controlling communications through a first set of base stations including a first base station and through a second set of base stations including a second base station. To direct communications between the remote unit and the first and second base stations the first base station measures a round trip delay of an active communication signal between the first base station and the remote unit. The remote unit measures a first phase offset of a pilot signal received from a first candidate base station and reports it to the first mobile switching center via the first base station. The first mobile switching center calculates a candidate round trip delay between the remote unit and the first candidate base station based on the first phase offset and the round trip delay of the active communication signal. A active communication control unit accesses a measurement directed hard handoff table to determine a location of the remote unit based on the round trip delay corresponding to the first active communication signal and the candidate round trip delay.
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公开(公告)号：FI974132A
公开(公告)日：1998-01-05
申请号：FI974132
申请日：1997-11-04
Applicant: QUALCOMM INC
Inventor： ZIV NOAM A , PADOVANI ROBERTO , LEVIN JEFFREY A , EASTON KENNETH D
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.
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公开(公告)号：AR001852A1
公开(公告)日：1997-12-10
申请号：AR33640296
申请日：1996-05-03
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 , H04Q7/22 , H04J13/02
Abstract: La invención se refiere a un método para buscar una senal de múltiples trayectorias, transmitida a velocidad variable desconocida y que comparte unabanda de frecuencia común en sistemas de comunicaciones de telefonía celular. El método esimpl ementado por una procesadora de exploración integrada,utilizada en un modem para un sistema de comunicaciones de espectro distinguido, memoriza temporalmente muestras de recepción y utiliza unaprocesadora de transformadas, en tiemporeban ado, que opera en sucesivos desplazamientos de la memoria intermedia. La procesadora de exploraciónprogresa de manera autónoma, mediante pasos, a través de una exploración configurada por un conjunto de parámetros de exploraciónespecif icada pormicro-procesadora, el cual conjunto puede incluir el grupo de antenas a ser explorado, el desplazamiento de partida y el ancho de la ventana de exploracióna ser explorada, y la cantidad de símbolos de Walsh, a efectos deacumular los re sultados en cada uno de los desplazamientos. La procesadora de exploracióncalcula la energía de correlación en cada uno de los desplazamientos, y presenta un informe resumido de las mejoras trayectorias halladas enlaexploración para ser util izadas en las reasignaciones de los elementos de demodulación. La exploración es efectuada en una modalidad lineal,independientemente de la probabilidad de que una senal que se está buscando, hubiera sidotransmitida en cualquier tiempo dado
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Patent Agency Ranking
公开(公告)号：AU2823597A
公开(公告)日：1997-11-19
申请号：AU2823597
申请日：1997-05-01
Applicant: QUALCOMM INC
Inventor： LEE KUO-CHUN , KARMI GADI , MOHANTY BIBHU , SUTTON TODD R , ZIV NOAM A
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.
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公开(公告)号：FI974132A0
公开(公告)日：1997-11-04
申请号：FI974132
申请日：1997-11-04
Applicant: QUALCOMM INC
Inventor： ZIV NOAM A , PADOVANI ROBERTO , LEVIN JEFFREY A , EASTON KENNETH D
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.
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38.发明专利
公开(公告)号：ZA972155B
公开(公告)日：1997-09-17
申请号：ZA972155
申请日：1997-03-12
Applicant: QUALCOMM INC
Inventor： ZIV NOAM A , TIEDEMANN JR EDWARD G
IPC: H04B7/005 , H04B7/26 , H04W36/18 , H04W52/14 , H04W52/16 , H04W52/34 , H04W52/40 , G05F , G05B , G08C , H04M
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.
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公开(公告)号：ZA9604961B
公开(公告)日：1997-01-08
申请号：ZA9604961
申请日：1996-06-11
Applicant: QUALCOMM INC
Inventor： ZIV NOAM A , PADOVANI ROBERTO
CPC classification number: H04W52/24 , H04B17/318 , H04L1/0059 , H04L1/0071
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公开(公告)号：CA2220224A1
公开(公告)日：1996-11-07
申请号：CA2220224
申请日：1996-05-02
Applicant: QUALCOMM INC
Inventor： EASTON KENNETH D , PADOVANI ROBERTO , LEVIN JEFFREY A , ZIV NOAM A
Abstract: An integrated search processor (128) used in a modem (110) for a spread spectrum communications system buffers in a buffer (172) received signals samples and utilizes a time sliced transform processor (120) operating on successive offsets from the buffer (172). The search processor (128) autonomously steps through a search as configured by a microprocessor (136) 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 (128) 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 (122) reassignment. The search is done in a linar fashion independent of the probability that a signal being searched for was transmitted at any given time.
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