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    23.
    发明专利
    未知

    公开(公告)号：DE69435004D1

    公开(公告)日：2007-09-06

    申请号：DE69435004

    申请日：1994-10-28

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A

    IPC: H04B7/005 ,  H04B7/04 ,  H04B7/216 ,  H04B7/26 ,  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.

    Measurement directed hard handoff controlled at mobile switching center
    25.
    发明专利
    Measurement directed hard handoff controlled at mobile switching center 未知

    公开(公告)号：NZ502909A

    公开(公告)日：2001-04-27

    申请号：NZ50290997

    申请日：1997-05-22

    Applicant: QUALCOMM INC

    Inventor： BAKER KENNETH R ,  HOLCMAN TONI L ,  MUNSINGER DAVID B ,  WEAVER LINDSAY A ,  ZIV NOAM A

    IPC: H04Q7/22 ,  H04Q7/38

    Abstract: Communications between a mobile and first and second base stations in a cellular system are directed by measuring the round trip delay of an active communication signal between the first base station and the mobile and entering a measurement directed hard handoff state by an active communication control unit located in a first mobile switching center of the system. The active communication control unit accesses a measurement directed hard handoff table to determine, on the basis of the measured round trip delay corresponding to the first active communication signal, whether the location of the mobile corresponds to an area where handoff is desirable, that is handoff will most likely not drop the communication in progress.

    Dot product circuit multipath receivers
    27.
    发明专利
    Dot product circuit multipath receivers 未知

    公开(公告)号：HK1011126A1

    公开(公告)日：1999-07-02

    申请号：HK98110101

    申请日：1998-08-21

    Applicant: QUALCOMM INC

    Inventor： WEAVER LINDSAY A

    IPC: G06F17/10 ,  G06F17/15 ,  G06F17/16 ,  H04L27/22 ,  H04B1/66 ,  H04L1/06 ,  H04B ,  G06F ,  H04L

    Abstract: An method and apparatus for computing a scalar projection of a vector onto another vector. The apparatus comprises a multiplying circuit and a summing circuit. The multiplying circuit is for multiplying a value representative of a first component of a first vector with a value representative of a first component of a second vector to provide a first intermediate value, and for multiplying a value representative of a second component of a first vector with a value representative of a second component of a second vector to provide a second intermediate value. The summing circuit sums the first and second intermediate values to provide a resultant value representative of the scalar projection of the first vector onto the second vector. The apparatus may further comprise a storing circuit and a selection circuit. The storing circuit is for storing the values representative of the first and second components of the first vector, and the values representative of the first and second components of the second vector. The selection circuit provides an ordered supply of these values to the multiplying circuit.

    METHOD SYSTEM, APPARATUS FOR CONTROLLING POWER OF SIGNAL IN A CDMA COMMUNICATION SYSTEM
    28.
    发明专利
    METHOD SYSTEM, APPARATUS FOR CONTROLLING POWER OF SIGNAL IN A CDMA COMMUNICATION SYSTEM 未知

    公开(公告)号：HU215857B

    公开(公告)日：1999-03-29

    申请号：HU9303239

    申请日：1992-05-17

    Applicant: QUALCOMM INC

    Inventor： BLAKENEY ROBERT D II ,  GILHOUSEN KLEIN S ,  PADOVANI ROBERTO ,  WEAVER LINDSAY A ,  WHEATLEY CHARLES E III

    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

    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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