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    93.
    发明专利
    未知

    公开(公告)号：BR0008805A

    公开(公告)日：2002-02-13

    申请号：BR0008805

    申请日：2000-03-10

    Applicant: QUALCOMM INC

    Inventor： WEAVER LINDSAY A JR ,  HARMS BRIAN K ,  SOONG ANTHONY C K ,  SCHWARTZ BRUCE S

    IPC: H04B7/005

    Abstract: The invention is a CDMA signal transmission control technology (316). A CDMA (307) signal is transmitted that has in-band components and out-of-band components. Transmit control logic (316) automatically generates a ratio of signal strength of the in-band components versus the out-of-band components. In some embodiments of the invention, control logic (436) generates a transmit power metric signal based on the ratio. In other embodiments of the invention, control logic (436) determines excess forward link capacity based on the ratio. The CDMA signal transmission control technology (166) can be implemented in a CDMA base station (312).

    Method and apparatus for providing a cone of silence in a cellular communication system
    95.
    发明专利
    Method and apparatus for providing a cone of silence in a cellular communication system 未知

    公开(公告)号：AU715780B2

    公开(公告)日：2000-02-10

    申请号：AU3075897

    申请日：1997-05-22

    Applicant: QUALCOMM INC

    Inventor： WEAVER LINDSAY A JR ,  WHITE KATHERINE W

    IPC: H04W16/32 ,  H04W36/14 ,  H04Q7/22 ,  H04Q7/36 ,  H04Q7/38

    Abstract: In a communications network, a remote unit communicates with another user via at least one base station. The network has a plurality of base stations controlled by a mobile switching center. Each base station of the plurality of base stations transmits an identifying pilot signal. To defining an area in which communication between a set of the base stations and the remote unit is forbidden, an auxiliary antenna transmits a silent region identifying pilot signal. The remote unit measures a signal strength of a set of identifying pilot signals corresponding to a neighbor set of base stations and measures a signal strength of the silent region identifying pilot signal. The remote unit sends a pilot strength measurement report to the mobile switching center via a first base station with which the remote unit has established communication. A handoff of the established communication between the remote unit and the first base station is initiated if the pilot strength measurement report comprises an entry corresponding to the silent region identifying pilot signal.

    Apparatus and method for controlling the actual transmission power of a base station in a cellular communications system.
    97.
    发明专利
    Apparatus and method for controlling the actual transmission power of a base station in a cellular communications system. 未知

    公开(公告)号：HK1015571A1

    公开(公告)日：1999-10-15

    申请号：HK99100399

    申请日：1999-01-29

    Applicant: QUALCOMM INC

    Inventor： WEAVER LINDSAY A JR ,  BOESEL ROBERT WRIGHT

    IPC: H04B7/26 ,  H04B7/005 ,  H04W52/34 ,  H04B

    Abstract: An apparatus and method for controlling a final transmit power, y, of a base station in a cellular communications system that has several channels. The base station has a transmit power tracking gain, y', and a radio frequency transmit power, w. The apparatus comprises channel elements for calculating expected powers, Pk,a-Pk,i, each of which corresponds to a channel. The apparatus also comprises a transceiver system controller (BTSC) for generating a desired output power, yd, of the base station, including an adder for summing the expected powers. The apparatus also includes a transmit power detector for measuring y to obtain a measured transmit power. The apparatus further comprises a radio frequency interface card (RFIC) for generating y'. Finally, the apparatus includes a gain unit for processing y' and w to obtain the final transmit power, y.

    Apparatus and method for reducing power consumption in a mobile communications receiver.
    98.
    发明专利
    Apparatus and method for reducing power consumption in a mobile communications receiver. 未知

    公开(公告)号：HK1015209A1

    公开(公告)日：1999-10-08

    申请号：HK98116167

    申请日：1998-12-28

    Applicant: QUALCOMM INC

    Inventor： TIEDEMANN EDWARD G JR ,  WEAVER LINDSAY A JR ,  KERR RICHARD J ,  GEIB KENNETH M

    IPC: H04B1/16 ,  H04B7/26 ,  H04J3/16 ,  H04W24/00 ,  H04W48/08 ,  H04W52/02 ,  H04W56/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/04 ,  H04J ,  H04B

    Abstract: A system for reducing receiver power consumption in communication system having a transmitter and one or more receivers schedules periodic messages in "slots." Each receiver is assigned a slot during which it monitors the transmissions. The transmitter transmits messages to the receiver only during the assigned slots. The receiver is in an "active state" during its assigned slot. It may remain in the active state after its assigned slot if the message requires the receiver to perform additional actions. During the "inactive state," which is the time period between successive occurrences of its assigned slot, the receiver may perform any action not requiring coordination with the transmitter. It may conserve power during this time by removing power from one or more components such as those used for monitoring the transmissions. At a time during the inactive state shortly before the assigned slot, the receiver applies power to these components and performs initializations. Such initializations may include reacquiring a pilot channel signal to which the receiver may synchronize itself if its timing signals have drifted out of synchronization with those of the transmitter during the preceding inactive state.

    100.
    发明专利
    未知

    公开(公告)号：ES2122970T3

    公开(公告)日：1999-01-01

    申请号：ES91901367

    申请日：1990-11-30

    Applicant: QUALCOMM INC

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

    IPC: G01S5/12 ,  G01S5/14 ,  G01S13/87 ,  G01S19/00 ,  G01S19/01 ,  G01S19/38 ,  G01S19/48 ,  H04B7/185 ,  G01S5/00 ,  G01S1/02

    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.

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