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    METHOD AND DEVICE FOR DISCRIMINATING WHETHER OR NOT RADIO STATION IS IN OPERATION WITHIN PRESCRIBED GEOGRAPHICAL RANGE
    1.
    发明专利
    METHOD AND DEVICE FOR DISCRIMINATING WHETHER OR NOT RADIO STATION IS IN OPERATION WITHIN PRESCRIBED GEOGRAPHICAL RANGE 失效

    公开(公告)号：JP2000050342A

    公开(公告)日：2000-02-18

    申请号：JP18455099

    申请日：1999-06-30

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： BOLLIGER BRIAN DAVID ,  LIGHT JEFFREY ROSS ,  STOCKERT MARK KEVIN ,  VARVARO CHARLES

    IPC: H04B7/14 ,  H04W4/00 ,  H04Q7/34

    Abstract: PROBLEM TO BE SOLVED: To provide a technology that discriminates whether or not a radio station is in operation within a prescribed geographical position especially in radio communication. SOLUTION: This method and system discriminate whether or not a radio station is in operation within a prescribed geographical position. The method consists of a step where pilot signals are received from plural base stations, a step where a mobile station calculates the time delay between an actual reception time and an estimated reception time of the pilot signals from at least two base stations, a step where the calculated time delay is compared with the time delay stored in advance and a step where it is discriminated that the mobile station is in operation within the prescribed geographical range when the calculated time delay is within the prescribed permissible difference of the stored time delay in advance.

    METHOD AND APPARATUS FOR DETERMINING WHETHER A WIRELESS STATION IS OPERATING WITHIN A PRESCRIBED GEOGRAPHIC REGION
    3.
    发明专利
    METHOD AND APPARATUS FOR DETERMINING WHETHER A WIRELESS STATION IS OPERATING WITHIN A PRESCRIBED GEOGRAPHIC REGION 未知

    公开(公告)号：CA2269178A1

    公开(公告)日：1999-12-30

    申请号：CA2269178

    申请日：1999-04-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： VARVARO CHARLES ,  STOCKERT MARK KEVIN ,  LIGHT JEFFREY ROSS ,  BOLLIGER BRIAN DAVID

    IPC: H04B7/14 ,  H04W4/00 ,  G01S11/02 ,  G08G1/127

    Abstract: A method and apparatus for determining whether a wireless station is operating within a prescribed geographic location. During an initialization process, the wireless telephone measures propagation delays of pilot signals from nearby base stations and stores the propagation delays in a non-volatile memory of the wireless station. Thereafter, during a check process, the wireless station measures propagation delays of pilot signals from nearby base stations and compares them with the stored propagation delays stored in memory. If the difference between the two sets of propagation delays are within a predetermined tolerance, then a determination is made that the wireless station is operating within the prescribed geographic location. Multiple sets of propagation delays may be stored in memory such that a determination can be made as to whether the mobile station is operating within any one of a number of prescribed geographic locations.

    METHOD AND APPARATUS FOR DETERMINING WHETHER A WIRELESS STATION IS OPERATING WITHIN A PRESCRIBED GEOGRAPHIC REGION
    8.
    发明专利
    METHOD AND APPARATUS FOR DETERMINING WHETHER A WIRELESS STATION IS OPERATING WITHIN A PRESCRIBED GEOGRAPHIC REGION 未知

    公开(公告)号：CA2269178C

    公开(公告)日：2002-06-18

    申请号：CA2269178

    申请日：1999-04-15

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： VARVARO CHARLES ,  STOCKERT MARK KEVIN ,  LIGHT JEFFREY ROSS ,  BOLLIGER BRIAN DAVID

    IPC: H04B7/14 ,  H04W4/00 ,  G01S11/02 ,  G08G1/127

    Abstract: A method and apparatus for determining whether a wireless station is operati ng within a prescribed geographic location. During an initialization process, t he wireless telephone measures propagation delays of pilot signals from nearby base stations and stores the propagation delays in a non-volatile memory of the wireless station. Thereafter, during a check process, the wireless station measures propagatio n delays of pilot signals from nearby base stations and compares them with the stored propagation delays stored in memory. If the difference between the two sets of propagation delays are within a predetermined tolerance, then a determinatio n is made that the wireless station is operating within the prescribed geographic location. Multiple sets of propagation delays may be stored in memory such that a determination can be made as to whether the mobile station is operating with in any one of a number of prescribed geographic locations.

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