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    PRIORITY-BASED CHANNEL ALLOCATION IN A SATELLITE COMMUNICATION SYSTEM
    1.
    发明专利
    PRIORITY-BASED CHANNEL ALLOCATION IN A SATELLITE COMMUNICATION SYSTEM 未知

    公开(公告)号：CA2485956A1

    公开(公告)日：2003-11-20

    申请号：CA2485956

    申请日：2003-05-02

    Applicant: INMARSAT LTD

    Inventor： MUNDAY MARTIN ,  RICHHARIA MADHAVENDRA ,  BATY CHARLTON

    IPC: H04B7/185 ,  H04L12/851

    Abstract: In a communications system, channels can be assigned during an off-peak peri od with a lower pre-emption priority than normal channels, and may be pre-empte d in favour of normal channels when insufficient channels are available. Durin g a peak period, only normal channels can be assigned. A pool of available channels is maintained above a minimum level by pre-empting lower priority channels. Lower priority channels can be assigned from the pool only when it is above a threshold size. An advantage of this method is that channels can be assigned to non-critical applications during the off-peak period without substantially affecting the availability of channels during the peak period, thus encouraging more efficient use of off-peak channel capacity.

    Channel Allocation and Assignment
    2.
    发明专利
    Channel Allocation and Assignment 未知

    公开(公告)号：GB2388747A

    公开(公告)日：2003-11-19

    申请号：GB0211031

    申请日：2002-05-14

    Applicant: INMARSAT LTD

    Inventor： RICHHARIA MADHAVENDRA ,  MUNDAY MARTIN ,  BATY CHARLTON

    IPC: H04B7/185 ,  H04L12/851 ,  H04Q7/38 ,  H04Q7/36

    Abstract: Satellite communications channels can be assigned as low priority and high priority channels, which are also called off peak and normal channels). The low priority channels may be appropriated (pre-empted) when high priority channels are unavailable for high priority calls. The number of high priority and low priority channels available throughout the day varies. A pool of available high priority channels is maintained whenever possible and therefore low priority channels may only be assigned when the pool of high priority channels is above a threshold size. The peak periods and off peak periods do not have to be determined in advance and therefore the system dynamically changes to suit current traffic levels.

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