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公开(公告)号：FI953211A
公开(公告)日：1995-06-28
申请号：FI953211
申请日：1995-06-28
Applicant: QUALCOMM INC
Inventor： GILHOUSEN KLEIN S , PEDOVANI ROBERTO , WEAVER JR LINDSAY A
IPC: H04B7/005 , H04B7/04 , H04B7/216 , H04B7/26 , H04W16/24 , H04W36/06 , H04W36/18 , H04W52/00 , H04W52/14 , H04W52/40 , H04Q
Abstract: A method and apparatus providing softer handoff of a mobile unit (90) between sectors (50, 70, and 80) of a common base station (60). A sectorized base station (60) comprises a set of demodulation elements (240A - 204N). Each demodulation element (240A - 204N) may be assigned to a signal from one of a plurality of sectors. The output of the demodulators (240A - 204N) are combined before the decoding process independent of the sector from which the data originated. This configuration provides improved output data reliability, more stable power control, and more efficient use of resources at the base station.
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公开(公告)号：NO934005D0
公开(公告)日：1993-11-05
申请号：NO934005
申请日：1993-11-05
Applicant: QUALCOMM INC
Inventor： WEAVER JR LINDSAY A , BLAKENEY ROBERT D , GILHOUSEN KLEIN S , PADOVANI ROBERTO , WHEATLEY CHARLES E
IPC: H04J13/00 , H04B7/005 , H04B7/26 , H04L27/30 , H04W52/00 , H04W52/02 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/34 , H04W52/36 , H04W52/40 , H04W52/52 , H04L
Abstract: A cellular communication system in which a system user and another user communicate with each other by way of information carrying spread spectrum modulated signals transmitted via a cell-site in which system: the system user comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said cell-site, a receiver for receiving information carrying spread spectrum modulated signals from said cell-site and means for measuring signal quality in said information carrying spread spectrum modulated signals received by the system user; the cell-site comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said system user, a receiver for receiving information carrying spread spectrum modulated signals from said system user and adjusting means for adjusting the power of information carrying spread spectrum modulated signals transmitted from the cell-site ; ; and power control means is provided for controlling the transmission power of the information carrying spread spectrum modulated signals by measuring the signal power in the information carrying spread spectrum modulated signals received by the system user and transmitting data representing the measured power to the cell-site by way of the information carrying spread spectrum modulated signals, the adjusting means being responsive to the data in the information carrying spread spectrum modulated signals from the system user to adjust the power in the information carrying spread spectrum modulated signals transmitted by the cell-site.
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公开(公告)号：NO20003769A
公开(公告)日：1993-11-05
申请号：NO20003769
申请日：2000-07-21
Applicant: QUALCOMM INC
Inventor： WEAVER JR LINDSAY A , BLAKENEY ROBERT D , GILHOUSEN KLEIN S , PADOVANI ROBERTO , WHEATLEY III CHARLES E
IPC: H04J13/00 , H04B7/005 , H04B7/26 , H04L27/30 , H04W52/00 , H04W52/02 , H04W52/06 , H04W52/08 , H04W52/10 , H04W52/12 , H04W52/34 , H04W52/36 , H04W52/40 , H04W52/52 , H04B7/216 , H04Q7/34
CPC classification number: H04W52/40 , H04B7/0671 , H04B7/2628 , H04W52/0245 , H04W52/06 , H04W52/08 , H04W52/10 , Y02D70/21 , Y02D70/444 , Y02D70/449
Abstract: A cellular communication system in which a system user and another user communicate with each other by way of information carrying spread spectrum modulated signals transmitted via a cell-site in which system: the system user comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said cell-site, a receiver for receiving information carrying spread spectrum modulated signals from said cell-site and means for measuring signal quality in said information carrying spread spectrum modulated signals received by the system user; the cell-site comprises a transmitter for transmitting information carrying spread spectrum modulated signals to said system user, a receiver for receiving information carrying spread spectrum modulated signals from said system user and adjusting means for adjusting the power of information carrying spread spectrum modulated signals transmitted from the cell-site ; and power control means is provided for controlling the transmission power of the information carrying spread spectrum modulated signals by measuring the signal power in the information carrying spread spectrum modulated signals received by the system user and transmitting data representing the measured power to the cell-site by way of the information carrying spread spectrum modulated signals, the adjusting means being responsive to the data in the information carrying spread spectrum modulated signals from the system user to adjust the power in the information carrying spread spectrum modulated signals transmitted by the cell-site.
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公开(公告)号：HK1133352A1
公开(公告)日：2010-03-19
申请号：HK09109097
申请日：2009-10-01
Applicant: QUALCOMM INC
Inventor： GILHOUSEN KLEIN S , PADOVANI ROBERTO , WEAVER JR LINDSAY A
IPC: H04B7/005 , H04B7/04 , H04B7/216 , H04B7/26 , H04W20090101 , H04W16/24 , H04W36/06 , H04W36/18 , H04W52/00 , H04W52/14 , H04W52/40
Abstract: A method and apparatus providing softer handoff of a mobile unit (90) between sectors (50, 70, and 80) of a common base station (60). A sectorized base station (60) comprises a set of demodulation elements (240A - 204N). Each demodulation element (240A - 204N) may be assigned to a signal from one of a plurality of sectors. The output of the demodulators (240A - 204N) are combined before the decoding process independent of the sector from which the data originated. This configuration provides improved output data reliability, more stable power control, and more efficient use of resources at the base station.
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公开(公告)号：FI20031395A
公开(公告)日：2003-09-26
申请号：FI20031395
申请日：2003-09-26
Applicant: QUALCOMM INC
Inventor： WEAVER JR LINDSAY A , PADOVANI ROBERTO , BENDER PAUL E
IPC: H04W24/02 , H04B7/005 , H04B7/26 , H04W36/06 , H04W52/04 , H04W52/14 , H04W52/24 , H04W52/40 , H04Q
Abstract: A method and apparatus for matching the location of the forward link handoff boundary to the reverse link handoff boundary. A system constant is chosen which defines the product of the received power and the transmitted pilot power at every base station. The reverse link power level is measured at the base station and the forward link power level is compensated for the reverse link loading to maintain the constant product. Thereby the forward link handoff boundary to the reverse link handoff boundary are aligned to the same location.
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Patent Agency Ranking
公开(公告)号：FI110295B
公开(公告)日：2002-12-31
申请号：FI953210
申请日：1995-06-28
Applicant: QUALCOMM INC
Inventor： BLAKENEY II ROBERT D , WEAVER JR LINDSAY A , NOAM A ZIV , 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.
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公开(公告)号：NO20023618L
公开(公告)日：2002-09-25
申请号：NO20023618
申请日：2002-07-30
Applicant: QUALCOMM INC
Inventor： PADOVANI ROBERTO , WEAVER JR LINDSAY A , BLACK PETER J
Abstract: Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. By using uncorrelated PN sequences, the likehood of detecting a pilot signal from an undesired system is reduced or minimized, and the mean time to acquisition of the pilot signal from the desired system is improved. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set. The PN sequences for the first set can be generated based on the characteristic polynomials defined by IS-95-A, and the PN sequences for the second set can be the reverse of the PN sequences for the first set.
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公开(公告)号：NO983644L
公开(公告)日：1998-10-07
申请号：NO983644
申请日：1998-08-07
Applicant: QUALCOMM INC
Inventor： DEAN RICHARD F , WEAVER JR LINDSAY A , WHEATLEY III CHARLES E
Abstract: The present invention is a method and apparatus for integrating a personal communication system with a cable television plant. A set of radio antenna devices (RAD) are connected to the cable plant. The RADs provide frequency conversion and power control of signal received from the cable plant for wireless transmission to the remote units. The RADs also provide power control and frequency conversion of wireless signals received from the remote units for transmission by the RADs onto the cable plant. In addition to the functions of standard base stations and centralized controller, the CATV base station must also compensate for gain variations in the cable plant. The downstream power control is regulated by a RAD reference signal which can be hidden within the CDMA signal for maximum efficiency. The upstream power control is regulated by an upstream gain reference signal which is individually transmitted by each RAD on the upstream link. The architecture of the present invention lends itself to a great deal of flexibility. Each RAD can operate as either an element of a distributed antenna or a base station sector unto itself. The function of each RAD as distributed antenna or as sector can be remotely programmed from the headend processor. Thus the capacity density of the system can be changed to accommodate the changing traffic density. The flexibility also is important at system deployment. When the system is deploy, the entire system may feed only one sector at the base station thus reducing the start-up cost of implementing a system. As system traffic increases, more resources can simply be added at the headend to provide more capacity.
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公开(公告)号：NO983644D0
公开(公告)日：1998-08-07
申请号：NO983644
申请日：1998-08-07
Applicant: QUALCOMM INC
Inventor： DEAN RICHARD F , WEAVER JR LINDSAY A , WHEATLEY III CHARLES E
Abstract: The present invention is a method and apparatus for integrating a personal communication system with a cable television plant. A set of radio antenna devices (RAD) are connected to the cable plant. The RADs provide frequency conversion and power control of signal received from the cable plant for wireless transmission to the remote units. The RADs also provide power control and frequency conversion of wireless signals received from the remote units for transmission by the RADs onto the cable plant. In addition to the functions of standard base stations and centralized controller, the CATV base station must also compensate for gain variations in the cable plant. The downstream power control is regulated by a RAD reference signal which can be hidden within the CDMA signal for maximum efficiency. The upstream power control is regulated by an upstream gain reference signal which is individually transmitted by each RAD on the upstream link. The architecture of the present invention lends itself to a great deal of flexibility. Each RAD can operate as either an element of a distributed antenna or a base station sector unto itself. The function of each RAD as distributed antenna or as sector can be remotely programmed from the headend processor. Thus the capacity density of the system can be changed to accommodate the changing traffic density. The flexibility also is important at system deployment. When the system is deploy, the entire system may feed only one sector at the base station thus reducing the start-up cost of implementing a system. As system traffic increases, more resources can simply be added at the headend to provide more capacity.
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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
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