中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.023 seconds)

    LIMITED POSITIONING SYSTEM
    2.
    发明专利
    LIMITED POSITIONING SYSTEM 失效

    公开(公告)号：JP2000180186A

    公开(公告)日：2000-06-30

    申请号：JP35683599

    申请日：1999-12-16

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： BAIRON FA CHEN ,  MARIA E PARAMARA ,  VARVARO CHARLES

    IPC: G01C21/00 ,  G01S5/00 ,  G01S5/10 ,  G01S19/48 ,  H04W64/00 ,  G01S5/14 ,  H04Q7/34

    Abstract: PROBLEM TO BE SOLVED: To enable positioning similar to GPS by using usual apparatuses by using radio wave propagation parameters in a CDMA(code division multiple access) system normal link or a TDMA(time division multiple access) system inverse link, for position confirmation of a mobile station. SOLUTION: In order to determine the position of a mobile station, data samples from the mobile station (e.g. sector number, pilot phase, and intensity of pilot channel signal) are read in a step S10. In a step S20, a cell site table is read which contains measured information of geographical positions of a base station such as the ID sector number and latitude/longitude of the base station. In a step S30, a section number of the data samples is made to conform with a section number in the cell site table, in order to determine a place where a pilot signal is transmitted. In a step 40, a distance from a visual base station is confirmed. In a step 50, geographical coordinates of the mobile station are determined by using TDOA(time difference of arrival).

    METHOD AND EQUIPMENT FOR CHARGING CALL IN CELLULAR MOBILE COMMUNICATION SYSTEM
    3.
    发明专利
    METHOD AND EQUIPMENT FOR CHARGING CALL IN CELLULAR MOBILE COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：JP2002261989A

    公开(公告)日：2002-09-13

    申请号：JP2002028710

    申请日：2002-02-05

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GOSS STEPHEN C ,  LIGHT JEFFREY ROSS ,  LIU CHUNG-ZIN ,  SALVADOR OMAR HERNANDO ,  SHAH GITESH P ,  STOCKERT MARK KEVIN ,  STROM KENNETH WAYNE ,  VARVARO CHARLES ,  WILSON RANDALL JOE

    IPC: H04M15/00 ,  H04W4/24 ,  H04Q7/38

    Abstract: PROBLEM TO BE SOLVED: To provide such a charging system that its charge is increased in the peak time of the number of calls and is reduced in the off-peak time of the number of calls. SOLUTION: A method for charging a call in a cellular mobile communication system includes a step for holding the records of the utilizing states of a channel in the region including one or more cells or sectors; a step for reporting to the mobile stations present in a region that a call is made possible at a lower charge than usual ones, when the low occupation factor of a radio channel is sensed in the region; and a step for recording the fact that the charge of the call is made low, in the charge record relative to the call. In this case, the charge record includes the information whereby a charge processor can make its charge low to the call. The method can be used in a reverse mode. That is, the subscriber to the call plan of a low cost is informed of the time when the charge rate of a call is increased, by the reason that the capacity of a usable radio channel has been decreased.

    METHOD AND DEVICE FOR DISCRIMINATING WHETHER OR NOT RADIO STATION IS IN OPERATION WITHIN PRESCRIBED GEOGRAPHICAL RANGE
    4.
    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
    6.
    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.

    LOCAL POSITIONING SYSTEM
    9.
    发明专利
    LOCAL POSITIONING SYSTEM 未知

    公开(公告)号：CA2288490A1

    公开(公告)日：2000-06-16

    申请号：CA2288490

    申请日：1999-11-03

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： CHEN BYRON HUA ,  VARVARO CHARLES ,  PALAMARA MARIA E

    IPC: G01C21/00 ,  G01S5/00 ,  G01S5/10 ,  G01S19/48 ,  H04W64/00 ,  G01S5/14 ,  H04Q7/34

    Abstract: A local positioning system (LPS) uses the radio propagation parameters in a CDMA forward link or TDMA reverse link to establish a mobile station's position. The mobile station receives pilot channel signals from at least three distinct base stations and records the PN chip offset of the pilot channel signals. The LPS time difference of arrival triangulation approach requires no additional signal detection capabilities. Base stations send out pilot channel signals that arrive at a mobile station with a particular phase and at least a predetermined minimum strength. The mobile station reports back the "visible" pilot channel signals, their phases and signal strength to the LPS which uses a location non-linear system, expressed as a set of cost functions, to estimate the mobile location. The LPS can also solve the 9-1-1 mobile location problem for wireless CDMA systems by determining the position of a person in distress that has a digital cellular phone.

    METHOD AND APPARATUS FOR DETERMINING WHETHER A WIRELESS STATION IS OPERATING WITHIN A PRESCRIBED GEOGRAPHIC REGION
    10.
    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.

Patent Agency Ranking