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    COMMUNICATING METHOD
    2.
    发明专利
    COMMUNICATING METHOD 审中-公开

    公开(公告)号：JP2002185994A

    公开(公告)日：2002-06-28

    申请号：JP2001311454

    申请日：2001-10-09

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： QI BI ,  KAMEL RAAFAT E ,  YUEN-YIN KOO L ,  PITTAMPALLI ESHWAR ,  THOMAS MATHEW

    IPC: H04W36/18 ,  H04W36/30 ,  H04Q7/22

    Abstract: PROBLEM TO BE SOLVED: To provide a method for permitting an MS(mobile station) to automatically resume a call when the MS loses communications with a base station(BS). SOLUTION: The MS monitors signals from other BSs while it communicates with a BS. The signals are measured and the strength of the signals received from BSs in the reception-possible area of the MS is decided. When MS loses a traffic channel being used for communicating voice or data with the BS, the MS tries a contact with another BS. The BS that the MS selects to contact has the strongest signal which the MS monitored previously. When the MS makes contact with the new BS, the MS requests a hand-off from the BSs with which contact is lost to another BS supplying communication services to the MS. New traffic channels are allocated to the MS with BSs on the basis of the MS request and the measurement value of the signal strength of other BSs which were included in the hand-off request of the MS.

    4.
    发明专利
    未知

    公开(公告)号：DE60102786T2

    公开(公告)日：2005-04-21

    申请号：DE60102786

    申请日：2001-08-14

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KAMEL RAAFAT E ,  SALVARANI ALEXANDRO ,  THOMAS MATHEW ,  VITEBSKY STANLEY

    IPC: H04B7/005 ,  H04L1/00

    Abstract: A method and apparatus estimate the initial power level and transmission rate of a burst on a secondary channel (182) when the secondary channel (182) is on fewer legs (132) of a handoff, such as a soft or softer handoff, than the primary channel (162, 164, 166). In accordance with the present invention, the initial power level of the burst transmitted over a current secondary channel (182) on a particular leg(s) is a function of a power level of a previous burst transmitted over a previous secondary channel on the identical leg(s) (132) as the current secondary channel (182). For example, the initial power level of the burst can be based on the power level at the end of the previous burst shortly prior to the termination of the previous burst, where the termination of the previous burst was within a predetermined time interval of the start of the burst. Optionally, the initial power level of a burst can also be additionally adjusted based on characteristics of the communication link of the primary channel (162), the previous secondary channel, and the current secondary channel (182). The transmission rate may then be adjusted based on the initial power level determined as described above to obtain a more efficient transmission rate.

    5.
    发明专利
    未知

    公开(公告)号：DE60102786D1

    公开(公告)日：2004-05-19

    申请号：DE60102786

    申请日：2001-08-14

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： KAMEL RAAFAT E ,  SALVARANI ALEXANDRO ,  THOMAS MATHEW ,  VITEBSKY STANLEY

    IPC: H04B7/005 ,  H04L1/00

    Abstract: A method and apparatus estimate the initial power level and transmission rate of a burst on a secondary channel (182) when the secondary channel (182) is on fewer legs (132) of a handoff, such as a soft or softer handoff, than the primary channel (162, 164, 166). In accordance with the present invention, the initial power level of the burst transmitted over a current secondary channel (182) on a particular leg(s) is a function of a power level of a previous burst transmitted over a previous secondary channel on the identical leg(s) (132) as the current secondary channel (182). For example, the initial power level of the burst can be based on the power level at the end of the previous burst shortly prior to the termination of the previous burst, where the termination of the previous burst was within a predetermined time interval of the start of the burst. Optionally, the initial power level of a burst can also be additionally adjusted based on characteristics of the communication link of the primary channel (162), the previous secondary channel, and the current secondary channel (182). The transmission rate may then be adjusted based on the initial power level determined as described above to obtain a more efficient transmission rate.

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