METHOD AND APPARATUS FOR ESTIMATING A SIGNAL FADING CHARACTERISTIC
    63.
    发明公开
    METHOD AND APPARATUS FOR ESTIMATING A SIGNAL FADING CHARACTERISTIC 失效
    方法与电路估计信号特性收缩

    公开(公告)号:EP0772916A4

    公开(公告)日:2001-02-28

    申请号:EP96908740

    申请日:1996-03-08

    Applicant: MOTOROLA INC

    CPC classification number: H04B7/0817 H04B17/20

    Abstract: A method and apparatus for measuring a characteristic of a fading signal received using two or more branch diversity receivers (100) is presented. This fading characteristic is proportional to the speed of the user. In a first embodiment the number of times the antenna branches change in a selection diversity process is counted (160), and the result is scaled (170) for imbalance between the branches. The output of a fading quality estimator (180), indicative of the fading and generally proportional to the speed, is thereby obtained.

    64.
    发明专利
    未知

    公开(公告)号:FI115283B

    公开(公告)日:2005-03-31

    申请号:FI965260

    申请日:1996-12-30

    Applicant: MOTOROLA INC

    Abstract: A method for assigning subscribers between narrowbeam sectors includes, in a first embodiment, off-loading subscribers to alternate sectors when a current sector becomes loaded beyond a loading threshold. The subscriber(s) having the greatest signal quality measure (e.g., power setting) are preferably selected for off-loading, since such are typically in regions having the greatest overlap with other sectors (e.g., close to the antennas). The selected subscriber(s) are transferred to an alternate sector, preferably one having the best received signal quality with the subscriber and also having loading beneath the loading threshold.

    Method and apparatus for increasing service efficacy in an ad-hoc mesh network

    公开(公告)号:AU2002346523A8

    公开(公告)日:2003-06-23

    申请号:AU2002346523

    申请日:2002-11-25

    Applicant: MOTOROLA INC

    Abstract: A method of and wireless communications unit (WCU) for providing service in a mesh network includes a receiver for receiving a first signal from a first WCU in the mesh network; a directional antenna system for coupling the signal to the receiver, the signal arriving from a first selected one of a first plurality of directions; a controller to control the directional antenna system such that the signal is coupled to the receiver according too a local predetermined pattern of the first plurality of directions; and a transmitter to send a second signal in a second selected one of the first plurality of directions, where the controller interrupts the local predetermined pattern and selects the second direction.

    METHOD AND APPARATUS FOR ESTIMATING A SIGNAL FADING CHARACTERISTIC

    公开(公告)号:CA2194786C

    公开(公告)日:2002-09-10

    申请号:CA2194786

    申请日:1996-03-08

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus for measuring a characteristic of a fading signal received using two or more branch diversity receivers (100) is presented. Th is fading characteristic is proportional to the speed of the user. In a first embodiment the number of times the antenna branches change in a selection diversity process is counted (160), and the result is scaled (170) for imbalance between the branches. The output of a fading quality estimator (180), indicative of the fading and generally proportional to the speed, is thereby obtained.

    Method and apparatus for changing the electrical characteristics of an antenna in a communications system

    公开(公告)号:AU4812100A

    公开(公告)日:2000-12-12

    申请号:AU4812100

    申请日:2000-05-01

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus for changing the electrical characteristics of an antenna in a communications system includes first and second conductive portions separated by a slot. Circuit elements are coupled between the first and second conductive portions, the circuit elements being operably controlled by a bias current to control flow of RF current within the first and second conductive elements, wherein the path of the RF current is directed to be in substantially different locations within the first and second conductive elements.

    70.
    发明专利
    未知

    公开(公告)号:BR9908271A

    公开(公告)日:2000-10-24

    申请号:BR9908271

    申请日:1999-01-26

    Applicant: MOTOROLA INC

    Abstract: At a receiver location in a wireless communication system service area, a set of characteristics that describe a received ray of a subscriber signal is measured. In a model of the wireless communication system service area, a propagation path of a model ray launched from a location in the model of the wireless communication system service area that corresponds to the receiver location in the wireless communication system service area is determined, wherein the ray has model signal characteristics based upon the set of characteristics that describe the received ray of the subscriber signal. Thereafter, a subscriber location in the wireless communication system service area is estimated in response to the propagation path of the model ray.

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