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    METHOD AND SYSTEM FOR CONTROLLING SUBSCRIBER'S ACCESS TO RADIO COMMUNICATION SYSTEM
    1.
    发明专利
    METHOD AND SYSTEM FOR CONTROLLING SUBSCRIBER'S ACCESS TO RADIO COMMUNICATION SYSTEM 失效

    公开(公告)号：JP2002044721A

    公开(公告)日：2002-02-08

    申请号：JP2001160189

    申请日：2001-05-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GANDHI ASIF D ,  HUANG JOE ,  IBANEZ MARC BENEDICT ,  SONG LEI ,  THOMAS MATHEW ,  VITEBSKY STANLEY

    IPC: H04W72/08 ,  H04Q7/38

    Abstract: PROBLEM TO BE SOLVED: To control access to an uplink link so as to prevent increase of failed access of subscriber's terminals to a radio communication system. SOLUTION: To easily maintain the target performance an uplink and a desired service area map of the uplink, and control an access by a subscriber terminal 24 to the radio communication system 11, a radio communication system 11 measures a first and a second performance indicator for the uplink to a base station 10 which the subscriber terminal 24 is searching for so as to access. A blocking threshold is established based on the second performance indicator. The radio communication system 11 determines whether or not to allow access by subscriber terminal 24 based on a comparison between the measured first performance indicator and the established blocking threshold.

    4.
    发明专利
    未知

    公开(公告)号：BR0102054A

    公开(公告)日：2002-04-23

    申请号：BR0102054

    申请日：2001-05-21

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GANDHI ASIF D ,  VITEBSKY STANLEY ,  IBANEZ MARC BENEDICT ,  SONG LEI ,  HUANG JOE ,  THOMAS MATHEW

    IPC: H04W72/08 ,  H04Q7/22

    Abstract: A method for controlling access of a subscriber station to a wireless communications system facilitates the maintenance of a performance target of the reverse link and desired geographic coverage of the reverse link. The method for controlling access of a subscriber station to a wireless communications system includes measuring a first performance indicator and a second performance indicator for a reverse link associated with a subscriber station seeking access to a wireless communications system. A blocking threshold value is established based upon the measured second performance indicator and may be adjusted to allow more or less blocking based on any additional metrics that characterize the performance of the current subscriber stations. The decision to grant or deny access of the subscriber station to the wireless communications system is determined based on a comparison of the measured first performance indicator to the established blocking threshold value.

    Method and apparatus for controlling reverse link interference rise and power control instability in wireless system
    5.
    发明专利
    Method and apparatus for controlling reverse link interference rise and power control instability in wireless system 未知

    公开(公告)号：AU6246500A

    公开(公告)日：2001-04-12

    申请号：AU6246500

    申请日：2000-10-04

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GANDHI ASIF DAWOODI ,  VITEBSKY STANLEY ,  THOMAS MATHEW ,  SONG LEI ,  IBANEZ MARC BENEDICT

    IPC: H04B7/005 ,  H04B7/26 ,  H04Q7/34

    Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

    6.
    发明专利
    未知

    公开(公告)号：BR0005605A

    公开(公告)日：2001-06-12

    申请号：BR0005605

    申请日：2000-09-29

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GANDHI ASIF DAWOODI ,  VITEBSKY STANLEY ,  IBANEZ MARC BENEDICT ,  SONG LEI ,  THOMAS MATHEW

    IPC: H04B7/005 ,  H04B7/26 ,  H04Q7/32

    Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

    METHOD AND APPARATUS FOR CONTROLLING REVERSE LINK INTERFERENCE RISE AND POWER CONTROL INSTABILITY IN A WIRELESS SYSTEM
    7.
    发明专利
    METHOD AND APPARATUS FOR CONTROLLING REVERSE LINK INTERFERENCE RISE AND POWER CONTROL INSTABILITY IN A WIRELESS SYSTEM 未知

    公开(公告)号：CA2322236A1

    公开(公告)日：2001-04-06

    申请号：CA2322236

    申请日：2000-10-03

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： THOMAS MATHEW ,  SONG LEI ,  IBANEZ MARC BENEDICT ,  GANDHI ASIF DAWOODI ,  VITEBSKY STANLEY

    IPC: H04B7/005 ,  H04B7/26 ,  H04Q7/36

    Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when E b/N o measurements for served mobiles do not meet target E b/N o levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target E b/N o levels in a centralized manner based on an overall system state so that only a limited number of target E b/N o levels are allowed to increase when frame erasures occur. By preventing a percentage of target E b/N o level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

    Method and system for controlling access of a subcriber station to a wireless system
    9.
    发明专利
    Method and system for controlling access of a subcriber station to a wireless system 未知

    公开(公告)号：AU4622001A

    公开(公告)日：2001-12-06

    申请号：AU4622001

    申请日：2001-05-23

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： GANDHI ASIF D ,  HUANG JOE ,  IBANEZ MARC BENEDICT ,  SONG LEI ,  THOMAS MATHEW ,  VITEBSKY STANLEY

    IPC: H04W72/08 ,  H04Q7/30

    Abstract: A method for controlling access of a subscriber station to a wireless communications system facilitates the maintenance of a performance target of the reverse link and desired geographic coverage of the reverse link. The method for controlling access of a subscriber station to a wireless communications system includes measuring a first performance indicator and a second performance indicator for a reverse link associated with a subscriber station seeking access to a wireless communications system. A blocking threshold value is established based upon the measured second performance indicator and may be adjusted to allow more or less blocking based on any additional metrics that characterize the performance of the current subscriber stations. The decision to grant or deny access of the subscriber station to the wireless communications system is determined based on a comparison of the measured first performance indicator to the established blocking threshold value.

    METHOD AND SYSTEM FOR CONTROLLING ACCESS OF A SUBSCRIBER STATION TO A WIRELESS SYSTEM
    10.
    发明专利
    METHOD AND SYSTEM FOR CONTROLLING ACCESS OF A SUBSCRIBER STATION TO A WIRELESS SYSTEM 未知

    公开(公告)号：CA2342730A1

    公开(公告)日：2001-11-30

    申请号：CA2342730

    申请日：2001-04-02

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： IBANEZ MARC BENEDICT ,  SONG LEI ,  VITEBSKY STANLEY ,  THOMAS MATHEW ,  GANDHI ASIF DAWOODI ,  HUANG JOE

    IPC: H04W72/08 ,  H04Q7/38

    Abstract: A method for controlling access of a subscriber station to a wireless communications system facilitates the maintenance of a performance target of the reverse link and desired geographic coverage of the reverse link. The method for controlling access of a subscriber station to a wireless communications syst em includes measuring a first performance indicator and a second performance indicator f or a reverse link associated with a subscriber station seeking access to a wireless communications system. A blocking threshold value is established based upon the measured second performance indicator and may be adjusted to allow more or less blocking bas ed on any additional metrics that characterize the performance of the current subscrib er stations. The decision to grant or deny access of the subscriber station to the wirele ss communications system is determined based on a comparison of the measured first performance indicator to the established blocking threshold value.

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