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    55.
    发明专利
    未知

    公开(公告)号：FI118913B

    公开(公告)日：2008-04-30

    申请号：FI972208

    申请日：1997-05-23

    Applicant: QUALCOMM INC

    Inventor： TIEDEMANN JR EDWARD G ,  WEAVER JR LINDSAY A ,  JOU YU-CHEUN ,  BAYLEY GWAIN

    IPC: H04B17/00 ,  H04L1/00 ,  H04B3/46 ,  H04B7/26 ,  H04L1/20 ,  H04L1/24 ,  H04L27/00 ,  H04L69/40

    Abstract: The invention provides a system and method for testing signal transmission quality within a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.

    56.
    发明专利
    未知

    公开(公告)号：FI20080081A

    公开(公告)日：2008-02-04

    申请号：FI20080081

    申请日：2008-02-04

    Applicant: QUALCOMM INC

    Inventor： TIEDEMANN JR EDWARD G ,  WEAVER JR LINDSAY A ,  JOU YU-CHEUN ,  BAYLEY GWAIN

    IPC: H04L1/00 ,  H04B3/46 ,  H04B7/26 ,  H04B17/00 ,  H04L1/20 ,  H04L1/24 ,  H04L27/00 ,  H04L69/40

    Abstract: The invention provides a system and method for testing signal transmission quality within a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.

    57.
    发明专利
    未知

    公开(公告)号：FI116443B

    公开(公告)日：2005-11-15

    申请号：FI953211

    申请日：1995-06-28

    Applicant: QUALCOMM INC

    Inventor： GILHOUSEN KLEIN S ,  PADOVANI 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 ,  H04Q7/38

    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.

    58.
    发明专利
    未知

    公开(公告)号：FI114075B

    公开(公告)日：2004-07-30

    申请号：FI961447

    申请日：1996-03-29

    Applicant: QUALCOMM INC

    Inventor： WEAVER JR LINDSAY A ,  BENDER PAUL E

    IPC: H04B7/005 ,  H04B7/26 ,  H04W16/06 ,  B60S5/04 ,  H04W36/18 ,  H04W52/40 ,  H04W52/52 ,  H04Q7/36 ,  H04Q7/30

    Abstract: An apparatus and method for adding and removing a target base station from a network of base stations, which includes base stations adjacent the target base station. The apparatus is comprised of two attenuators: a first for setting an artificial receive noise power level and a second for setting a transmit level. The transmit level determines the forward link coverage area of the base station. The artificial noise level sets the reverse link coverage area of the base station. When a base station is added, initially the transmit power is low and the artificial receive noise power is high such that the forward and reverse link coverage areas are collocated in close proximity to the base station. As the base station blossoms into full operation, the artificial receive noise power is decreased and the transmit level is increased such that the two coverage areas of the base station remain balanced as the coverage areas expand. When a base station is to be removed from a system, the same attenuators are used to wilt the two coverage areas in unison as the power level transmitted from the base station decreases.

    59.
    发明专利
    未知

    公开(公告)号：FI107084B

    公开(公告)日：2001-05-31

    申请号：FI922629

    申请日：1992-06-05

    Applicant: QUALCOMM INC

    Inventor： AMES WILLIAM G ,  JACOBS IRWIN M ,  WEAVER JR LINDSAY A ,  GILHOUSEN KLEIN S

    IPC: G01S5/12 ,  G01S5/14 ,  G01S13/87 ,  G01S19/00 ,  G01S19/01 ,  G01S19/38 ,  G01S19/48 ,  H04B7/185 ,  G01S5/10

    Abstract: A method and system for determining the position of an object using a fixed station and a plurality of earth orbit satellites whose positions are known. Separate periodic signals are transmitted from the fixed station via first and second satellites to the object whose postion is to be determined. The phase offset in periodic characteristics of the periodic signals as received from the first and second satellites is measured at the object. The phase offset corresponds to a relative time difference in propagation of the signals traveling two different paths to the object. The object transmits via the first satellite a return signal indicative of the measured relative time difference. This return signal is activated some time in the future according to the object local time, which is slaved to receipt of the periodic signal sent through the first satellite. This future time is the start of the particular time period as decided by the fixed station's schedule. At the fixed station, an instantaneous round trip delay, determined by the time offset of the current transmission clock time relative to the receive clock time of reception of the return signal, along with the measured relative time difference sent back on the return signal, is used to calculate the distances between the first and second satellites to the object. From these distances the position of the object is calculated.

    60.
    发明专利
    未知

    公开(公告)号：FI20010465A

    公开(公告)日：2001-03-08

    申请号：FI20010465

    申请日：2001-03-08

    Applicant: QUALCOMM INC

    Inventor： WEAVER JR LINDSAY A

    IPC: H04B7/26 ,  H04B17/00 ,  H04W24/00 ,  H04Q

    Abstract: A method for checking the quality of service provided by a base station at a location remote from the base station, including transmitting signals between the base station and a call transceiver at the remote location, analyzing at least some of the signals at the remote location to formulate at least one parameter indicating the quality of the signals, and transmitting the at least one parameter from a control transceiver at the remote location to the base station.

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