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公开(公告)号：BRPI9106592B1
公开(公告)日：2018-09-11
申请号：BRPI9106592
申请日：1991-06-21
Applicant: QUALCOMM INC
Inventor： ANDREW J VITERBI , CHARLES E WHEATLEY III , IRWIN M JACOBS , KLEIN S GILHOUSEN , LINDSAY A WEAVER JR , ROBERTO PADOVANI
IPC: H04B7/26 , H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04L27/30 , H04W52/26
Abstract: descreve-se um sistema e processo para comunicação de sinais de informações mediante a utilização de técnicas de comunicação por espectro de propagação. são construídas seqúências pn que estabelecem ortogonalidade entre os usuários de maneira a reduzir a interferência mútua, permitindo uma capacidade mais elevada e um melhor desempenho de enlace. com os códigos pn ortogonais, a correlação cruzada é zero ao longo de um intervalo de tempo pré-determinado, resultando em ausência de interferência entre os códigos ortogonais, contanto apenas que os quadros de tempo dos códigos sejam alinhados em tempo entre si. em uma concretização exemplificada, os sinais são comunicados entre um local de célula e as unidades móveis por meio de sinais de comunicação de aspectro de propagação em seqúência direta. no enlace célula/móvel, são definidos os canais de enlace, piloto, de sincronização, de paginação e de voz. as informações comunicadas através dos canais de enlace célula/móvel são, em geral, codificadas, intercaladas, moduladas mediante chave de desvio bifásica (bpsk) com cobertura ortogonal de cada símbolo bpsk juntamente com cobertura em chave de desvio quadrifásica (qpsk) dos símbolos cobertos. no enlace móvel/célula, são definidos os canais de enlace, de acesso e de voz. as informações comunicadas através dos canais de enlace móvel/célula são, em geral, codificadas, intercaladas, e sinalizadas ortogonalmente juntamente com propagação qpsk.
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公开(公告)号：HK1052593B
公开(公告)日：2010-02-12
申请号：HK03104784
申请日：2003-07-07
Applicant: QUALCOMM INC
Inventor： ROBERTO PADOVANI , PETER J BLACK , NAGABHUSHANA T SINDHUSHAYANA
IPC: H04B20060101 , H04B1/707 , H04B7/26 , H04J20060101 , H04J13/00 , H04L7/04
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公开(公告)号：HK1049240B
公开(公告)日：2006-03-31
申请号：HK03101328
申请日：2003-02-21
Applicant: QUALCOMM INC
Inventor： ROBERTO PADOVANI , BRUCE A JUDSON
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公开(公告)号：MY114370A
公开(公告)日：2002-10-31
申请号：MYPI19942760
申请日：1994-10-17
Applicant: QUALCOMM INC
Inventor： ROBERT D BLAKENEY 11 , PAUL T WILLIAMSON , ROBERTO PADOVANI , LINDASAY A WEAVER JR , NOAM A ZIV
IPC: H04B1/7087 , H04B1/7117 , H04B7/08 , H04B7/26
Abstract: IN A RECEIVER HAVING A PLURALITY OF DEMODULATION ELEMENTS (204A,204B,...,204N), A METHOD OF ASSINGING THE PLURALITY OF DEMODULATION ELEMENTS TO 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 (204A,204B,...,204N), AT LEAST ONE SEARCHER ELEMENT (202), AND A CONTROLLER (200). FIGURE 1
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公开(公告)号：ID24950A
公开(公告)日：2000-08-31
申请号：ID990947
申请日：1998-01-27
Applicant: QUALCOMM INC
Inventor： ROBERTO PADOVANI , QUICK ROY F
Abstract: A method and apparatus for providing soft handoff in a mobile communication system. In current systems is that the members of active set are determined in accordance with comparisons of measured pilot energy with fixed thresholds. However, the value of providing a redundant communication link to a mobile station depends strongly on the energy of other signals being provided to the mobile station. In the present invention, the signal strengths of other base stations in communication with a mobile station are considered when determining whether adding a base to that set of base stations in communication with the remote station is of sufficient value to justify the impact on system capacity.
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Patent Agency Ranking
公开(公告)号：MY108626A
公开(公告)日：1996-10-31
申请号：MYPI19911131
申请日：1991-06-24
Applicant: QUALCOMM INC
Inventor： KLEIN S GILHOUSEN , ANDREW J VITERBI , ROBERTO PADOVANI , LINDSAY A WEAVER JR , IRWIN M JACOBS , CHARLES E WHEATLEY III
IPC: H04L27/30 , H04B1/707 , H04B1/7075 , H04B1/709 , H04B1/7115 , H04B7/005 , H04B7/26 , H04J3/02 , H04J3/16 , H04J3/22 , H04J11/00 , H04J13/00 , H04J13/10 , H04J13/18 , H04L20060101 , H04L1/00 , H04L1/06 , H04L1/08 , H04L5/02 , H04L5/12 , H04L23/02 , H04W52/26
Abstract: A SYSTEM AND METHOD FOR COMMUNICATING INFORMATION SIGNALS USING SPREAD SPECTRUM COMMUNICATION TECHNIQUES. PN SEQUENCES ARE CONSTRUCTED THAT PROVIDE ORTHOGONALITY BETWEEN THE USERS SO THAT MUTUAL INTERFERENCE WILL BE REDUCED, ALLOWING HIGHER CAPACITY AND BETTER LINK PERFORMANCE. WITH ORTHOGONAL PN CODES, THE CROSS-CORRELATION IS ZERO OVER A PREDETERMINED TIME INTERVAL, RESULTING IN NO INTERFERENCE BETWEEN THE ORTHOGONAL CODES, PROVIDED ONLY THAT THE CODE TIME FRAMES ARE TIME ALIGNED WITH EACH OTHER. IN AN EXEMPLARY EMBODIMENT, SIGNALS ARE COMMUNICATED BETWEEN A CELL-SITE (12, 14) AND MOBILE UNITS (16, 18) USING DIRECT SEQUENCE SPREAD SPECTRUM COMMUNICATION SIGNALS. IN THE CELL-TO-MOBILE LINK, PILOT, SYNC, PAGING AND VOICE CHANNELS ARE DEFINED. INFORMATION COMMUNICATED ON THE CELL-TO-MOBILE LINK CHANNELS ARE, IN GENERAL, ENCODED, INTERLEAVED, BI-PHASE SHIFT KEY (BPSK) MODULATED WITH ORTHOGONAL COVERING OF EACH BPSK SYMBOL ALONG WITH QUADRATURE PHASE SHIFT KEY (QPSK) SPREADING OF THE COVERED SYMBOLS. IN THE MOBILE-TO-CELL-LINK, ACCESS AND VOICE CHANNELS ARE DEFINED, INFORMATION COMMUNICATED ON THE MOBILE-TO-CELL LINK CHANNELS ARE, IN GENERAL, ENCODED, INTERLEAVED, ORTHOGONAL SIGNALLING ALONG WITH QPSK SPREADING.@@@(FIG. 11)
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7.发明专利
公开(公告)号：ZA9008859B
公开(公告)日：1991-09-25
申请号：ZA9008859
申请日：1990-11-05
Applicant: QUALCOMM INC
Inventor： GILHOUSEN KLEIN S , KLEIN S GILHOUSEN , PADOVANI ROBERTO , ROBERTO PADOVANI , WHEATLEY CHARLES E III , CHARLES E WHEATLEY III
IPC: H04B7/005 , H04B7/26 , H04W52/00 , H04W52/02 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/40 , H04W52/52 , H04J , H04M , H04B
CPC classification number: H04W52/0245 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/40 , H04W52/52 , Y02D70/21
Abstract: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell site using code division multiple access spread spectrum communication signals. The power control system controls transmission signal power for each cellular mobile telephone in the cellular mobile telephone system wherein each cellular mobile telephone has an antenna, transmitter and receiver and each cell-site also has an antenna, transmitter and receiver. Cell-site transmitted signal power is measured as received at the mobile unit. Transmitter power is adjusted at the mobile unit in an opposite manner with respect to increases and decreases in received signal power. A power control feedback scheme may also be utilized. At the cell-site communicating with the mobile unit, the mobile unit transmitted power is measured as received at the cell-site. A command signal is generated at the cell-site and transmitted to the mobile unit for further adjusting mobile unit transmitter power corresponding to deviations in the cell site received signal power. The feedback scheme is used to further adjust the mobile unit transmitter power so as to arrive at the cell-site at a desired power level.
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公开(公告)号：ZA9008857B
公开(公告)日：1991-08-28
申请号：ZA9008857
申请日：1990-11-05
Applicant: QUALCOMM INC
Inventor： GILHOUSEN KLEIN S , KLEIN S GILHOUSEN , PADOVANI ROBERTO , ROBERTO PADOVANI , WHEATLEY CHARLES E III , CHARLES E WHEATLEY III
CPC classification number: H04W36/18 , H04B2201/70701
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公开(公告)号：ZA9008856B
公开(公告)日：1991-08-28
申请号：ZA9008856
申请日：1990-11-05
Applicant: QUALCOMM INC
Inventor： GILHOUSEN KLEIN S , KLEIN S GILHOUSEN , PADOVANI ROBERTO , ROBERTO PADOVANI , WHEATLEY CHARLES E III , CHARLES E WHEATLEY III
CPC classification number: H04B1/7115 , H04B1/712 , H04B2201/70701 , H04L1/06
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公开(公告)号：HK1039015B
公开(公告)日：2009-09-04
申请号：HK02100397
申请日：2002-01-18
Applicant: QUALCOMM INC
Inventor： MATTHEW S GROB , ROBERTO PADOVANI , PAUL E BENDER , GADI KARMI , ROBERT H KIMBALL , GREG M HOAGLAND
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