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    Noise characterization in a wireless communication system
    147.
    发明专利
    Noise characterization in a wireless communication system 未知

    公开(公告)号：AU1931800A

    公开(公告)日：2000-06-19

    申请号：AU1931800

    申请日：1999-12-02

    Applicant: QUALCOMM INC

    Inventor： PADOVANI ROBERTO

    IPC: H04B1/04 ,  H04B1/10 ,  H04B7/26 ,  H04L1/20

    Abstract: The character of the noise in a series of incoming symbols received over a wireless link is determined. A series of corresponding bits are recovered based upon the series of incoming symbols. The series of corresponding bits are encoded to determine a series of recovered symbols. A vector product of the series of incoming symbols and the series of recovered symbols is determined. A difference between two symbols within the vector product is determined, wherein the two symbols were transmitted over the wireless link in close temporal proximity to one another. The expected value of a non-orthogonal noise portion of the series of incoming symbols is determined based upon an expected value of the difference between the two symbols.

    Method and apparatus for reliable intersystem handoff in a CDMA system
    148.
    发明专利
    Method and apparatus for reliable intersystem handoff in a CDMA system 未知

    公开(公告)号：AU718981B2

    公开(公告)日：2000-05-04

    申请号：AU4054097

    申请日：1997-08-06

    Applicant: QUALCOMM INC

    Inventor： PADOVANI ROBERTO

    IPC: H04W36/14 ,  H04W36/18 ,  H04Q7/38

    Abstract: In a communications network, a network user communicates through a remote unit via at least one base station. The communications network includes a first mobile switching center for controlling communications through a first set of base stations and a second mobile switching center for controlling communications through a second set of base stations. The network also includes a service providing base station controlled by the first mobile switching center and providing service to a first transition coverage area using a first pseudorandom noise code. The first transition coverage area defines a boundary between a first system controlled by the first mobile switching center and a second system controlled by the second mobile switching center. The network further includes a passage providing base station controlled by the second mobile switching center for providing service to the first transition area using a second pseudorandom noise code offset in time by a first amount from the first pseudorandom noise code. The passage providing base station provides service to a remote unit only if the remote unit is entering the first transition coverage area while exiting the second system or is about to exit the first transition coverage area while entering the second system.

    Method and apparatus for reliable intersystem handoff in a cdma system
    150.
    发明专利
    Method and apparatus for reliable intersystem handoff in a cdma system 未知

    公开(公告)号：HK1020402A1

    公开(公告)日：2000-04-14

    申请号：HK99105436

    申请日：1999-11-24

    Applicant: QUALCOMM INC

    Inventor： PADOVANI ROBERTO

    IPC: H04W36/14 ,  H04W36/18

    Abstract: In a communications network, a network user communicates through a remote unit via at least one base station. The communications network includes a first mobile switching center for controlling communications through a first set of base stations and a second mobile switching center for controlling communications through a second set of base stations. The network also includes a service providing base station controlled by the first mobile switching center and providing service to a first transition coverage area using a first pseudorandom noise code. The first transition coverage area defines a boundary between a first system controlled by the first mobile switching center and a second system controlled by the second mobile switching center. The network further includes a passage providing base station controlled by the second mobile switching center for providing service to the first transition area using a second pseudorandom noise code offset in time by a first amount from the first pseudorandom noise code. The passage providing base station provides service to a remote unit only if the remote unit is entering the first transition coverage area while exiting the second system or is about to exit the first transition coverage area while entering the second system.

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